Average Monthly Minimum Temperature, in Degrees F (Fahrenheit)
Listing of minimum temperatures, month-by-month, across major US cities over a 30 year period from 1961-1990 listed below:
| NORMALS 1961-90 | YRS | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN |
| BIRMINGHAM AP,AL | 30 | 31.3 | 34.5 | 42.3 | 49.2 | 57.7 | 65.2 | 69.5 | 68.8 | 62.9 | 50.2 | 41.6 | 34.8 | 50.7 |
| HUNTSVILLE, AL | 30 | 29.2 | 32.6 | 40.9 | 49 | 57.3 | 64.9 | 68.9 | 67.9 | 61.6 | 49.3 | 40.5 | 33.1 | 49.6 |
| MOBILE, AL | 30 | 40 | 42.7 | 50.1 | 57.1 | 64.4 | 70.7 | 73.2 | 72.9 | 68.7 | 57.3 | 49.1 | 43.1 | 57.4 |
| MONTGOMERY, AL | 30 | 35.8 | 38.8 | 45.7 | 52.9 | 60.8 | 67.9 | 71.5 | 70.8 | 66.1 | 53.3 | 44.6 | 38.7 | 53.9 |
| ANCHORAGE, AK | 30 | 8.4 | 11.5 | 18.1 | 28.6 | 38.8 | 47.2 | 51.7 | 49.5 | 41.6 | 28.7 | 15.1 | 10 | 29.1 |
| ANNETTE, AK | 30 | 29.7 | 32.1 | 33.9 | 37 | 42.3 | 47.8 | 52 | 52.3 | 48.1 | 41.9 | 34.7 | 31.4 | 40.3 |
| BARROW, AK | 30 | -19.3 | -23.7 | -21.1 | -9.1 | 14.4 | 29.7 | 33.6 | 33.3 | 27 | 8.8 | -6.9 | -17.2 | 4.1 |
| BETHEL, AK | 30 | 0.4 | -0.8 | 5.4 | 15.7 | 31.7 | 42.3 | 47.7 | 46.3 | 38.3 | 23.8 | 10.9 | 2.2 | 22 |
| BETTLES,AK | 30 | -20.4 | -18.3 | -8.6 | 9.7 | 33.5 | 47 | 49.2 | 43.8 | 32.4 | 12.1 | -8.8 | -16.7 | 12.9 |
| BIG DELTA,AK | 30 | -11 | -6.2 | 2.5 | 20.5 | 36.9 | 47.2 | 50.7 | 46 | 35.7 | 17.8 | -1.7 | -8.5 | 19.2 |
| COLD BAY,AK | 30 | 24.1 | 22.8 | 25 | 28.6 | 34.8 | 40.9 | 46 | 47.1 | 43.2 | 34.8 | 29.9 | 26.6 | 33.7 |
| FAIRBANKS, AK | 30 | -18.5 | -14.4 | -1.7 | 20.4 | 38 | 49.5 | 52.6 | 47.2 | 36.2 | 18.1 | -5.6 | -14.8 | 17.3 |
| GULKANA,AK | 30 | -13.9 | -7 | 2.6 | 19.9 | 32.6 | 42.2 | 46.4 | 42.2 | 33.4 | 19.5 | -2.5 | -10.9 | 17 |
| HOMER, AK | 30 | 16.8 | 18.1 | 21.9 | 28.6 | 35.6 | 42.2 | 46.2 | 46.2 | 40.5 | 31.2 | 22.6 | 18.4 | 30.7 |
| JUNEAU, AK | 30 | 19 | 22.7 | 26.7 | 32.1 | 38.9 | 45 | 48.1 | 47.3 | 42.9 | 37.2 | 27.2 | 22.6 | 34.1 |
| KING SALMON, AK | 30 | 7.6 | 6.7 | 14.1 | 23.4 | 33.9 | 41.4 | 46.4 | 46.4 | 39.7 | 25.1 | 15 | 8.3 | 25.7 |
| KODIAK, AK | 30 | 24.7 | 24.9 | 26.9 | 31.4 | 37.5 | 43.6 | 48.2 | 48.4 | 43.4 | 34.2 | 28.8 | 25.2 | 34.8 |
| KOTZEBUE, AK | 30 | -7.5 | -12 | -8 | 2.3 | 24.5 | 37.8 | 48.5 | 47.3 | 37 | 18.2 | 2.4 | -7.4 | 15.3 |
| MCGRATH, AK | 30 | -17.8 | -14.2 | -2.9 | 16 | 34.5 | 45.1 | 49 | 45 | 35.4 | 18 | -3.7 | -14.6 | 15.8 |
| NOME, AK | 30 | -0.7 | -4.5 | -0.3 | 9.7 | 29.2 | 38.8 | 45.2 | 44.1 | 36.3 | 22.2 | 9.3 | -0.5 | 19.1 |
| ST. PAUL ISLAND, AK | 30 | 22.4 | 17.9 | 19.4 | 23.9 | 31.2 | 37.1 | 42.5 | 44.4 | 40.3 | 33.6 | 28.9 | 24.8 | 30.5 |
| TALKEETNA, AK | 30 | 0.6 | 4 | 9.8 | 22.4 | 33.8 | 44.4 | 49 | 45.7 | 36.6 | 23.1 | 7.9 | 2.9 | 23.4 |
| UNALAKLEET, AK | 30 | -1.3 | -4.4 | 2.8 | 13.2 | 31.1 | 41.4 | 48.5 | 46.3 | 37 | 21 | 7.5 | -0.8 | 20.2 |
| VALDEZ, AK | 30 | 15 | 18.1 | 22.4 | 29.9 | 37.8 | 44.4 | 47.5 | 46.2 | 40.4 | 32.7 | 22.4 | 18 | 31.2 |
| YAKUTAT, AK | 30 | 18.6 | 21.1 | 23.7 | 29.1 | 36.5 | 43.3 | 47.8 | 46.5 | 41 | 34.7 | 25.2 | 21.1 | 32.4 |
| FLAGSTAFF, AZ | 30 | 15.2 | 17.7 | 21.3 | 26.7 | 33.3 | 41.4 | 50.5 | 48.9 | 41.2 | 31 | 22.4 | 15.8 | 30.5 |
| PHOENIX, AZ | 30 | 41.2 | 44.7 | 48.8 | 55.3 | 63.9 | 72.9 | 81 | 79.2 | 72.8 | 60.8 | 48.9 | 41.8 | 59.3 |
| TUCSON, AZ | 30 | 38.6 | 41 | 44.6 | 50.4 | 58 | 67.9 | 73.6 | 72.1 | 67.5 | 56.6 | 45.6 | 39.8 | 54.6 |
| WINSLOW, AZ | 30 | 19.1 | 24.6 | 30.1 | 36.5 | 44.9 | 53.9 | 62.8 | 61 | 52.8 | 40.2 | 29.3 | 20.2 | 39.6 |
| YUMA, AZ | 30 | 44.2 | 46.9 | 50.8 | 56.5 | 63.8 | 72 | 80.7 | 80.1 | 73.2 | 62.2 | 50.9 | 44.3 | 60.5 |
| FORT SMITH, AR | 30 | 25.5 | 30.2 | 39.2 | 48.6 | 57.7 | 65.9 | 70 | 68.8 | 61.9 | 48.8 | 38.4 | 29.3 | 48.7 |
| LITTLE ROCK, AR | 30 | 29.1 | 33.2 | 42.2 | 50.7 | 59 | 67.4 | 71.5 | 69.8 | 63.5 | 50.9 | 41.5 | 33.1 | 51 |
| NORTH LITTLE ROCK, AR | 30 | 29.4 | 33.6 | 42.6 | 52.2 | 59.7 | 67.5 | 71.3 | 70 | 63.7 | 52.6 | 42.4 | 33.7 | 51.6 |
| BAKERSFIELD, CA | 30 | 38.6 | 42.6 | 45.8 | 50.1 | 57.3 | 64 | 69.6 | 68.5 | 63.5 | 54.8 | 44.7 | 38.3 | 53.2 |
| BISHOP, CA | 30 | 22 | 26.3 | 30.2 | 35.7 | 43.8 | 51.2 | 56.1 | 54.2 | 46.8 | 37.4 | 27.8 | 21.7 | 37.8 |
| EUREKA, CA. | 30 | 41.5 | 42.9 | 43.4 | 44.3 | 47.5 | 50.6 | 52.3 | 53.1 | 51.6 | 48.6 | 45.2 | 42 | 46.9 |
| FRESNO, CA | 30 | 37.4 | 40.5 | 43.4 | 47.3 | 53.7 | 60.4 | 65.1 | 63.8 | 58.8 | 50.7 | 42.5 | 37.1 | 50.1 |
| LONG BEACH, CA | 30 | 44.9 | 46.9 | 49 | 51.8 | 56.3 | 59.8 | 63.4 | 64.8 | 62.7 | 57.8 | 50.4 | 45 | 54.4 |
| LOS ANGELES AP, CA | 30 | 47.8 | 49.3 | 50.5 | 52.8 | 56.3 | 59.5 | 62.8 | 64.2 | 63.2 | 59.2 | 52.8 | 47.9 | 55.5 |
| LOS ANGELES C.O., CA | 30 | 48.9 | 50.6 | 51.8 | 54.2 | 57.7 | 61.1 | 64.5 | 65.7 | 64.6 | 60.3 | 53.5 | 48.8 | 56.8 |
| MOUNT SHASTA, CA | 30 | 25.5 | 28.5 | 29.9 | 33.2 | 39.5 | 46.4 | 50 | 48.8 | 43.5 | 36.9 | 30.4 | 25.9 | 36.5 |
| REDDING, CA | 30 | 35.7 | 40 | 41.7 | 46 | 52.3 | 61.8 | 64.7 | 63.1 | 58.8 | 49.2 | 41.4 | 35.2 | 49.2 |
| SACRAMENTO, CA | 30 | 37.7 | 41.4 | 43.2 | 45.5 | 50.3 | 55.3 | 58.1 | 58 | 55.7 | 50.4 | 43.4 | 37.8 | 48.1 |
| SAN DIEGO, CA | 30 | 48.9 | 50.7 | 52.8 | 55.6 | 59.1 | 61.9 | 65.7 | 67.3 | 65.6 | 60.9 | 53.9 | 48.8 | 57.6 |
| SAN FRANCISCO AP, CA | 30 | 41.8 | 45 | 45.8 | 47.2 | 49.7 | 52.6 | 53.9 | 55 | 55.2 | 51.8 | 47.1 | 42.7 | 49 |
| SAN FRANCISCO C.O., CA | 30 | 45.8 | 48.7 | 49 | 49.8 | 50.5 | 52.6 | 53.5 | 54.6 | 55.9 | 55.2 | 51.6 | 47 | 51.2 |
| SANTA BARBARA, CA | 30 | 40.3 | 43.2 | 45.2 | 47.1 | 50.1 | 53.6 | 56.9 | 58.2 | 56.5 | 51.5 | 44.7 | 40.1 | 49 |
| SANTA MARIA, CA | 30 | 38.3 | 40.4 | 41.3 | 42.5 | 46.4 | 50.3 | 52.9 | 53.9 | 52.3 | 48 | 42.3 | 37.8 | 45.5 |
| STOCKTON, CA | 30 | 37 | 40.3 | 42.6 | 45.7 | 51.8 | 57.5 | 60.9 | 60.7 | 57.5 | 50.8 | 42.7 | 37.1 | 48.7 |
| ALAMOSA, CO | 30 | -3.9 | 4.8 | 15.8 | 23.5 | 32.8 | 41 | 47.8 | 45.4 | 36.7 | 24.6 | 12.3 | -0.5 | 23.4 |
| COLORADO SPRINGS, CO | 30 | 16.1 | 19.3 | 24.6 | 33 | 42.1 | 51.1 | 57.1 | 55.2 | 47.1 | 36.3 | 24.9 | 17.4 | 35.4 |
| DENVER, CO | 30 | 16.1 | 20.2 | 25.8 | 34.5 | 43.6 | 52.4 | 58.6 | 56.9 | 47.6 | 36.4 | 25.4 | 17.4 | 36.2 |
| GRAND JUNCTION, CO | 30 | 14.5 | 23.5 | 31.3 | 38.5 | 47.9 | 57.1 | 63.9 | 62.2 | 52.8 | 41.6 | 29.4 | 18.7 | 40.1 |
| PUEBLO, CO | 30 | 14.2 | 19.5 | 26.1 | 35.7 | 45.6 | 54.2 | 61.2 | 59 | 50.2 | 36.6 | 24.3 | 15.5 | 36.8 |
| BRIDGEPORT, CT | 30 | 21.9 | 23.2 | 30.9 | 39.8 | 50 | 59.1 | 65.7 | 65.1 | 57.6 | 47.1 | 38.2 | 27.6 | 43.9 |
| HARTFORD, CT | 30 | 15.8 | 18.6 | 28.1 | 37.5 | 47.6 | 56.9 | 62.2 | 60.4 | 51.8 | 40.7 | 32.8 | 21.3 | 39.5 |
| WILMINGTON, DE | 30 | 22.4 | 24.8 | 33.1 | 41.8 | 52.2 | 61.6 | 67.1 | 65.9 | 58.2 | 45.7 | 37 | 27.6 | 44.8 |
| WASHINGTON DULLES AP, D.C. | 30 | 21 | 23.3 | 31.8 | 40.3 | 50 | 59.2 | 64.1 | 62.8 | 55.4 | 42.4 | 34.2 | 25.8 | 42.5 |
| WASHINGTON NAT'L AP, D.C. | 30 | 26.8 | 29.1 | 37.7 | 46.4 | 56.6 | 66.5 | 71.4 | 70 | 62.5 | 50.3 | 41.1 | 31.7 | 49.2 |
| APALACHICOLA, FL | 30 | 43.8 | 46.1 | 52.7 | 59.1 | 66 | 72.1 | 74.4 | 74.2 | 71.4 | 61.4 | 53.1 | 46.8 | 60.1 |
| DAYTONA BEACH, FL | 30 | 46.9 | 48.4 | 53.9 | 58.6 | 64.9 | 70.8 | 72.5 | 72.9 | 71.9 | 65.2 | 56.3 | 49.7 | 61 |
| FORT MYERS, FL | 30 | 53.2 | 54.2 | 58.6 | 62 | 67.9 | 73.1 | 74.5 | 74.7 | 74.2 | 68.6 | 60.9 | 55.1 | 64.8 |
| GAINESVILLE, FL | 30 | 42.5 | 44.1 | 50.7 | 55.8 | 62.6 | 68.3 | 70.9 | 71 | 68.9 | 59.7 | 50.5 | 44.6 | 57.5 |
| JACKSONVILLE, FL | 30 | 40.5 | 43.3 | 49.2 | 54.9 | 62.1 | 69.1 | 71.9 | 71.8 | 69 | 59.3 | 50.2 | 43.4 | 57.1 |
| KEY WEST, FL | 30 | 65 | 65.6 | 69 | 72.2 | 76.1 | 78.5 | 79.6 | 79.3 | 78.5 | 75.5 | 71.2 | 66.8 | 73.1 |
| MIAMI, FL | 30 | 59.2 | 60.4 | 64.2 | 67.8 | 72.1 | 75.1 | 76.2 | 76.7 | 75.9 | 72.1 | 66.7 | 61.5 | 69 |
| ORLANDO, FL | 30 | 48.6 | 49.7 | 55.2 | 59.4 | 65.9 | 71.8 | 73.1 | 73.4 | 72.4 | 65.8 | 57.5 | 51.3 | 62 |
| PENSACOLA, FL | 30 | 41.4 | 44.1 | 51.3 | 58.5 | 65.7 | 71.8 | 74.2 | 73.8 | 70.3 | 59.4 | 51 | 44.4 | 58.8 |
| TALLAHASSEE, FL | 30 | 38.1 | 40.1 | 46.8 | 52.2 | 60.8 | 68.5 | 71.1 | 71.4 | 68 | 55.9 | 46.3 | 40.3 | 55 |
| TAMPA, FL | 30 | 50 | 51.6 | 56.5 | 60.8 | 67.5 | 72.9 | 74.5 | 74.5 | 72.8 | 65.2 | 57.2 | 52.3 | 63 |
| VERO BEACH, FL | 30 | 50.7 | 51.9 | 56.9 | 61 | 66.2 | 70.8 | 72.1 | 72.5 | 71.9 | 66.9 | 60 | 53.3 | 62.9 |
| WEST PALM BEACH, FL | 30 | 55.7 | 56.5 | 61.2 | 64.7 | 69.7 | 73.1 | 74.5 | 75 | 74.6 | 70.7 | 64.5 | 58.7 | 66.6 |
| ATHENS, GA | 30 | 32 | 34.7 | 42.1 | 49.8 | 58.1 | 65.8 | 69.5 | 68.7 | 63 | 50.7 | 42.3 | 35.1 | 51 |
| ATLANTA, GA | 30 | 31.5 | 34.5 | 42.5 | 50.2 | 58.7 | 66.2 | 69.5 | 69 | 63.5 | 51.9 | 42.8 | 35 | 51.3 |
| AUGUSTA,GA | 30 | 32 | 34.7 | 42.2 | 48.6 | 57.5 | 65.6 | 69.9 | 69.1 | 63.1 | 50.3 | 41.6 | 34.8 | 50.8 |
| COLUMBUS, GA | 30 | 35.2 | 37.6 | 45.1 | 52.2 | 61 | 68.4 | 71.8 | 71.4 | 66.3 | 54.1 | 45 | 38.2 | 53.9 |
| MACON, GA | 30 | 34.2 | 36.8 | 44.2 | 50.9 | 59.3 | 66.8 | 70.5 | 69.8 | 64.2 | 51.6 | 43.1 | 37.1 | 52.4 |
| SAVANNAH, GA | 30 | 38.1 | 41.1 | 48.3 | 54.5 | 62.9 | 69.2 | 72.4 | 72.2 | 67.8 | 56.9 | 48.1 | 41 | 56 |
| HILO, HI | 30 | 63.6 | 63.6 | 64.4 | 65.5 | 66.5 | 67.6 | 68.6 | 68.9 | 68.6 | 68.1 | 66.8 | 64.8 | 66.4 |
| HONOLULU,HI | 30 | 65.6 | 65.4 | 67.2 | 68.7 | 70.3 | 72.2 | 73.5 | 74.2 | 73.5 | 72.3 | 70.3 | 67 | 70 |
| KAHULUI, HI | 30 | 63.6 | 63.4 | 64.6 | 66.1 | 67 | 69 | 70.5 | 70.8 | 69.8 | 69.2 | 67.6 | 65.1 | 67.2 |
| LIHUE, HI | 30 | 65.3 | 65.1 | 66.9 | 68.5 | 70.3 | 72.5 | 73.7 | 74.2 | 73.5 | 72 | 70.3 | 67.1 | 70 |
| BOISE, ID | 30 | 21.6 | 27.5 | 31.9 | 36.7 | 43.9 | 52.1 | 57.7 | 56.8 | 48.2 | 39 | 31.1 | 22.5 | 39.1 |
| LEWISTON, ID | 30 | 27.6 | 31.5 | 34.7 | 39.7 | 46.5 | 53.9 | 59.2 | 58.9 | 50.9 | 41.4 | 34.4 | 28.7 | 42.3 |
| POCATELLO, ID | 30 | 14.4 | 19.8 | 25.9 | 32.3 | 39.6 | 47.3 | 53 | 50.9 | 42.8 | 33.5 | 26 | 15.8 | 33.4 |
| CHICAGO,IL | 30 | 12.9 | 17.2 | 28.5 | 38.6 | 47.7 | 57.5 | 62.6 | 61.6 | 53.9 | 42.2 | 31.6 | 19.1 | 39.5 |
| MOLINE, IL | 30 | 11.3 | 15.9 | 28.1 | 39.4 | 49.9 | 59.6 | 64.5 | 61.8 | 53.3 | 41.8 | 30.7 | 17.5 | 39.5 |
| PEORIA, IL | 30 | 13.2 | 17.7 | 29.8 | 40.8 | 50.9 | 60.7 | 65.4 | 63.1 | 55.2 | 43.1 | 32.5 | 19.3 | 41 |
| ROCKFORD, IL | 30 | 9.8 | 14.2 | 26.1 | 36.9 | 47.4 | 57.4 | 62.5 | 60.3 | 52 | 40.6 | 29.5 | 16.1 | 37.7 |
| SPRINGFIELD, IL | 30 | 15.9 | 20.2 | 31.6 | 42.5 | 52.3 | 61.9 | 66.1 | 63.3 | 55.9 | 44.4 | 34 | 21.9 | 42.5 |
| EVANSVILLE, IN | 30 | 21.2 | 25 | 35.7 | 45 | 54.2 | 63.3 | 67.5 | 64.9 | 57.6 | 44.7 | 36.5 | 26.7 | 45.2 |
| FORT WAYNE, IN | 30 | 15.3 | 17.8 | 28.8 | 38.5 | 49.1 | 59.3 | 63.2 | 60.9 | 54.2 | 42.5 | 33.5 | 21.6 | 40.4 |
| INDIANAPOLIS, IN | 30 | 17.2 | 20.9 | 31.9 | 41.5 | 51.7 | 61 | 65.2 | 62.8 | 55.6 | 43.5 | 34.1 | 23.2 | 42.4 |
| SOUTH BEND, IN | 30 | 16.1 | 18.7 | 29.1 | 38.7 | 48.8 | 58.6 | 63 | 61.1 | 53.7 | 42.8 | 33.4 | 22.3 | 40.5 |
| DES MOINES, IA | 30 | 10.7 | 15.6 | 27.6 | 40 | 51.5 | 61.2 | 66.5 | 63.6 | 54.5 | 42.7 | 29.9 | 16.1 | 40 |
| DUBUQUE,IA | 30 | 7.7 | 12.7 | 25 | 37.4 | 48 | 57.1 | 62 | 59.6 | 51.4 | 40.4 | 27.9 | 14 | 36.9 |
| SIOUX CITY, IA | 30 | 7.7 | 13.9 | 25.7 | 38.3 | 50 | 59.6 | 64.8 | 62 | 51.9 | 39.6 | 26.4 | 12.7 | 37.7 |
| WATERLOO, IA | 30 | 5.4 | 10.6 | 25 | 37.1 | 48.7 | 57.6 | 62.2 | 59 | 50 | 38.4 | 26.2 | 11.7 | 36 |
| CONCORDIA, KS | 30 | 15.7 | 20.3 | 30 | 41.2 | 51.9 | 61.9 | 67.8 | 65.5 | 55.7 | 44 | 30.8 | 19.8 | 42.1 |
| DODGE CITY, KS | 30 | 18.1 | 22.7 | 30.4 | 41.4 | 52 | 61.8 | 67.5 | 65.7 | 56.7 | 44.3 | 31.1 | 21.2 | 42.7 |
| GOODLAND, KS | 30 | 15.3 | 19 | 25.4 | 35.3 | 45.6 | 55.2 | 61.4 | 59.1 | 50 | 37.6 | 25.7 | 17 | 37.2 |
| TOPEKA, KS | 30 | 16.3 | 21.7 | 32.1 | 42.8 | 53.3 | 62.9 | 67.6 | 64.9 | 55.7 | 43.6 | 32 | 21 | 42.8 |
| WICHITA, KS | 30 | 19.2 | 23.7 | 33.6 | 44.5 | 54.3 | 64.6 | 69.9 | 67.9 | 59.2 | 46.6 | 33.9 | 23 | 45 |
| GREATER CINCINNATI AP | 30 | 19.5 | 22.7 | 33.1 | 42.2 | 51.8 | 60 | 64.8 | 62.9 | 56.6 | 44.2 | 35.3 | 25.3 | 43.2 |
| JACKSON, KY | 30 | 24.2 | 27.5 | 37.4 | 46 | 54.2 | 61.9 | 65.2 | 64.4 | 58.6 | 47 | 39 | 29.8 | 46.3 |
| LEXINGTON, KY | 30 | 22.4 | 25.3 | 35.3 | 44.2 | 53.5 | 61.5 | 65.7 | 64.4 | 58 | 46 | 37 | 27.6 | 45.1 |
| LOUISVILLE, KY | 30 | 23.2 | 26.5 | 36.2 | 45.4 | 54.7 | 62.9 | 67.3 | 65.8 | 58.7 | 45.8 | 37.3 | 28.6 | 46 |
| PADUCAH KY | 30 | 23.5 | 27.4 | 37.5 | 47.1 | 56 | 64.6 | 68.5 | 66.1 | 59.2 | 46.8 | 38.2 | 28.4 | 46.9 |
| BATON ROUGE, LA | 30 | 39.6 | 42.5 | 50.2 | 57.9 | 64.8 | 70.4 | 73.2 | 72.6 | 68.8 | 57.1 | 49 | 42.5 | 57.4 |
| LAKE CHARLES, LA | 30 | 41.1 | 44 | 50.7 | 58.7 | 65.7 | 71.6 | 73.6 | 73 | 68.6 | 57.9 | 50 | 43.6 | 58.2 |
| NEW ORLEANS, LA | 30 | 41.8 | 44.4 | 51.6 | 58.4 | 65.2 | 70.8 | 73.1 | 72.8 | 69.5 | 58.7 | 51 | 44.8 | 58.5 |
| SHREVEPORT, LA | 30 | 34.8 | 38 | 45.8 | 54.1 | 62 | 69 | 72.3 | 71.3 | 66 | 54.3 | 45.3 | 37.3 | 54.2 |
| CARIBOU, ME | 30 | -1.6 | 0.7 | 14.9 | 29 | 40.1 | 49.1 | 54.5 | 52.1 | 43.2 | 34.4 | 23.7 | 5.5 | 28.8 |
| PORTLAND, ME | 30 | 11.4 | 13.5 | 24.5 | 34.1 | 43.4 | 52.1 | 58.3 | 57.1 | 48.9 | 38.3 | 30.4 | 17.8 | 35.8 |
| BALTIMORE, MD | 30 | 23.4 | 25.9 | 34.1 | 42.5 | 52.6 | 61.8 | 66.8 | 65.7 | 58.4 | 45.9 | 37.1 | 28.2 | 45.2 |
| BLUE HILL, MA | 30 | 17.6 | 19.2 | 27.5 | 36.6 | 46.5 | 55.5 | 61.7 | 60.5 | 53 | 43.2 | 34.3 | 22.7 | 39.9 |
| BOSTON, MA | 30 | 21.6 | 23 | 31.3 | 40.2 | 49.8 | 59.1 | 65.1 | 64 | 56.8 | 46.9 | 38.3 | 26.7 | 43.6 |
| WORCESTER, MA | 30 | 15 | 16.5 | 24.9 | 34.7 | 45.1 | 53.9 | 60.1 | 58.6 | 50.5 | 40.5 | 31.3 | 20.1 | 37.6 |
| ALPENA, MI | 30 | 8.8 | 8.3 | 18 | 30.1 | 39.2 | 48 | 54 | 52.6 | 46.3 | 37 | 28.4 | 16.5 | 32.3 |
| DETROIT, MI | 30 | 15.6 | 17.6 | 27 | 36.8 | 47.1 | 56.3 | 61.3 | 59.6 | 52.5 | 40.9 | 32.2 | 21.4 | 39 |
| FLINT, MI | 30 | 14.2 | 15.6 | 25.6 | 36 | 45.7 | 54.7 | 59.7 | 57.9 | 51.1 | 40.5 | 32.1 | 20.6 | 37.8 |
| GRAND RAPIDS, MI | 30 | 14.7 | 15.8 | 25.4 | 35.4 | 45.6 | 55.3 | 60.4 | 58.4 | 49.9 | 39.1 | 30.2 | 20.7 | 37.6 |
| HOUGHTON LAKE, MI | 30 | 8.4 | 8.2 | 18.2 | 31.6 | 42 | 50.6 | 55.4 | 53.8 | 46.9 | 37.5 | 28.4 | 15.7 | 33.1 |
| LANSING, MI | 30 | 13.3 | 14.2 | 24.5 | 35.1 | 44.9 | 54.5 | 59 | 56.9 | 49.9 | 39.2 | 30.8 | 19.3 | 36.8 |
| MARQUETTE, MI | 30 | 3.3 | 4 | 13.6 | 27 | 38.4 | 47.4 | 53.5 | 51.7 | 44.1 | 34.8 | 23.3 | 9.9 | 29.3 |
| MUSKEGON, MI | 30 | 17.7 | 18 | 25.4 | 35.4 | 45.1 | 54.4 | 60.2 | 58.8 | 51.5 | 41.5 | 32.7 | 23.3 | 38.7 |
| SAULT STE. MARIE, MI | 30 | 4.6 | 4.8 | 15.3 | 28.4 | 38.4 | 45.5 | 51.3 | 51.3 | 44.3 | 36.2 | 25.9 | 11.8 | 29.8 |
| DULUTH, MN | 30 | -2.2 | 2.8 | 15.7 | 28.9 | 39.6 | 48.5 | 55.1 | 53.3 | 44.5 | 35.1 | 21.5 | 4.9 | 29 |
| INTERNATIONAL FALLS, MN | 30 | -10 | -4 | 11.4 | 27.8 | 39.6 | 49.5 | 54.6 | 51.7 | 42.5 | 32.9 | 17 | -2.2 | 25.9 |
| MINNEAPOLIS-ST.PAUL, MN | 30 | 2.8 | 9.2 | 22.7 | 36.2 | 47.6 | 57.6 | 63.1 | 60.3 | 50.3 | 38.8 | 25.2 | 10.2 | 35.3 |
| ROCHESTER, MN | 30 | 2.6 | 8.1 | 21.3 | 34.6 | 45.5 | 55.2 | 60.1 | 57.5 | 48.5 | 37.6 | 24.4 | 9.4 | 33.7 |
| SAINT CLOUD, MN | 30 | -2.4 | 3.8 | 17.6 | 32 | 43.4 | 52.2 | 57.6 | 54.8 | 45.4 | 34.4 | 20.3 | 5 | 30.3 |
| JACKSON, MS | 30 | 32.7 | 35.7 | 44.1 | 51.9 | 60 | 67.1 | 70.5 | 69.7 | 63.7 | 50.3 | 42.3 | 36.1 | 52 |
| MERIDIAN, MS | 30 | 33.4 | 36.6 | 43.5 | 50.9 | 58.9 | 66.1 | 69.9 | 69.2 | 63.9 | 50.5 | 42.4 | 36.6 | 51.8 |
| TUPELO, MS | 30 | 30.9 | 34 | 43.2 | 51 | 59.5 | 66.5 | 70.6 | 69.3 | 63.3 | 49.8 | 41.7 | 34.1 | 51.2 |
| COLUMBIA, MO | 30 | 18.5 | 22.8 | 33 | 43.7 | 53.1 | 61.2 | 66.2 | 63.8 | 57 | 45.5 | 34.6 | 23.2 | 43.6 |
| KANSAS CITY, MO | 30 | 16.7 | 21.8 | 32.6 | 43.8 | 53.9 | 63.1 | 68.2 | 65.7 | 56.9 | 45.7 | 33.6 | 21.9 | 43.7 |
| ST. LOUIS, MO | 30 | 20.8 | 25.1 | 35.5 | 46.4 | 56 | 65.7 | 70.4 | 67.9 | 60.5 | 48.3 | 37.7 | 26 | 46.7 |
| SPRINGFIELD, MO | 30 | 20.4 | 25 | 34.4 | 44.1 | 53.2 | 61.9 | 66.6 | 65 | 57.7 | 45.9 | 35.5 | 25.3 | 44.6 |
| BILLINGS, MT | 30 | 13.7 | 19.4 | 25.2 | 34 | 43.3 | 52 | 58.3 | 56.7 | 46.5 | 37.5 | 25.6 | 16.5 | 35.7 |
| GLASGOW, MT | 30 | 1.2 | 7.9 | 19 | 32 | 42.5 | 51.3 | 56.7 | 55.3 | 44.1 | 33.3 | 18.8 | 5.5 | 30.6 |
| GREAT FALLS, MT | 30 | 11.6 | 17.2 | 22.8 | 31.9 | 40.9 | 48.6 | 53.2 | 52.2 | 43.5 | 35.8 | 24.3 | 14.6 | 33.1 |
| HELENA, MT | 30 | 9.6 | 15.9 | 22.3 | 30.6 | 39.6 | 48.3 | 53.4 | 51.7 | 41 | 31.6 | 20.7 | 11.2 | 31.3 |
| KALISPELL, MT | 30 | 12.7 | 18.1 | 23.9 | 31.1 | 38.4 | 44.1 | 47.1 | 46.3 | 38.6 | 29.4 | 23.7 | 15.5 | 30.7 |
| MISSOULA, MT | 30 | 15.4 | 20.9 | 24.9 | 30.9 | 37.9 | 46.1 | 50.1 | 49.2 | 40.4 | 31.3 | 24.2 | 16.4 | 32.3 |
| GRAND ISLAND, NE | 30 | 11.1 | 16.4 | 26.3 | 38.1 | 49.4 | 59.3 | 64.8 | 62 | 51.6 | 39.2 | 26.2 | 14.9 | 38.3 |
| LINCOLN, NE | 30 | 10.1 | 15.1 | 26.8 | 38.9 | 50 | 60.2 | 66.3 | 63.3 | 53.2 | 40.5 | 27.3 | 15.4 | 38.9 |
| NORFOLK, NE | 30 | 8.4 | 14.1 | 25 | 37.6 | 49.2 | 58.6 | 64 | 61.2 | 51.1 | 38.6 | 25.5 | 12.8 | 37.2 |
| NORTH PLATTE, NE | 30 | 8.6 | 14.3 | 23 | 33.9 | 44.6 | 54.1 | 60.1 | 57.6 | 46.2 | 33.5 | 21.3 | 11.2 | 34 |
| OMAHA EPPLEY AP, NE | 30 | 10.9 | 16.7 | 27.7 | 39.9 | 50.9 | 60.4 | 65.9 | 62.9 | 53.6 | 41.2 | 28.7 | 15.6 | 39.5 |
| OMAHA (NORTH), NE | 30 | 11.2 | 16.6 | 27.8 | 40.3 | 51.8 | 61.4 | 66.5 | 63.8 | 54.7 | 43 | 29.7 | 15.9 | 40.2 |
| SCOTTSBLUFF, NE | 30 | 11.8 | 16.8 | 22.1 | 31.5 | 41.8 | 52.7 | 58.7 | 56 | 45.6 | 33.7 | 22.4 | 12.9 | 33.8 |
| VALENTINE, NE | 30 | 6.6 | 11.9 | 20.9 | 32.9 | 44.1 | 54 | 60.4 | 57.6 | 46.3 | 33.9 | 20.8 | 9.3 | 33.2 |
| ELKO, NV | 30 | 13.4 | 19.9 | 25 | 29.5 | 36.8 | 44.6 | 50.3 | 48.6 | 38.9 | 29.6 | 22.5 | 14 | 31.1 |
| ELY, NV | 30 | 9.4 | 15.4 | 20.7 | 26 | 33.7 | 40.7 | 48 | 46.5 | 37.3 | 28.2 | 19 | 10.6 | 28 |
| LAS VEGAS, NV | 30 | 33.6 | 38.8 | 43.8 | 50.7 | 60.2 | 69.4 | 76.2 | 74.2 | 66.2 | 54.3 | 42.6 | 33.9 | 53.7 |
| RENO, NV | 30 | 20.7 | 24.2 | 29.2 | 33.3 | 40.1 | 46.9 | 51.3 | 49.6 | 41.3 | 32.9 | 26.7 | 19.9 | 34.7 |
| WINNEMUCCA, NV | 30 | 16.7 | 22.8 | 25.2 | 29.4 | 37.7 | 45.8 | 51.2 | 48.7 | 38.8 | 29.3 | 23.3 | 17 | 32.2 |
| CONCORD, NH | 30 | 7.4 | 10.4 | 22.1 | 31.5 | 41.4 | 51.2 | 56.5 | 54.7 | 46 | 34.9 | 27 | 14.4 | 33.1 |
| MT. WASHINGTON, NH | 30 | -4.6 | -3.2 | 5.4 | 16.1 | 28.5 | 37.9 | 43 | 41.6 | 34.6 | 24.2 | 13.9 | 0.6 | 19.8 |
| ATLANTIC CITY AP, NJ | 30 | 21.4 | 23.5 | 31.3 | 39.3 | 49.6 | 58.7 | 64.8 | 63.5 | 55.5 | 43.7 | 35.8 | 26.3 | 42.8 |
| NEWARK, NJ | 30 | 23.4 | 25.4 | 33.4 | 42.7 | 53.2 | 62.8 | 68.6 | 67.4 | 59.9 | 48.2 | 39.2 | 29.1 | 46.1 |
| ALBUQUERQUE, NM | 30 | 21.7 | 26.4 | 32.2 | 39.6 | 48.6 | 58.3 | 64.4 | 62.6 | 55.2 | 43 | 31.2 | 23.1 | 42.2 |
| CLAYTON, NM | 30 | 19.4 | 22.8 | 28.1 | 37.2 | 46.3 | 55.6 | 60.9 | 59.2 | 51.8 | 40.8 | 29.1 | 21.2 | 39.4 |
| ROSWELL, NM | 30 | 24.7 | 29.1 | 36.3 | 45.3 | 54.7 | 62.1 | 66.7 | 64.9 | 59.2 | 47.1 | 35.1 | 25.6 | 45.9 |
| ALBANY, NY | 30 | 11 | 13.8 | 24.5 | 35.1 | 45.4 | 54.6 | 59.6 | 57.8 | 49.4 | 38.6 | 30.7 | 18.2 | 36.6 |
| BINGHAMTON, NY | 30 | 14.3 | 15.3 | 24.7 | 35.2 | 46.2 | 54.6 | 59.7 | 57.9 | 50.6 | 40.3 | 31.6 | 20.3 | 37.6 |
| BUFFALO, NY | 30 | 17 | 17.4 | 25.9 | 36.2 | 47 | 56.5 | 61.9 | 60.1 | 53 | 42.7 | 33.9 | 22.9 | 39.5 |
| ISLIP, NY | 30 | 21.3 | 21.7 | 30.8 | 39.5 | 49.4 | 58.7 | 65.7 | 65.1 | 60 | 45.7 | 35.8 | 26.5 | 43.4 |
| NEW YORK C.PARK, NY | 30 | 25.3 | 26.9 | 34.8 | 43.8 | 53.7 | 63 | 68.4 | 67.3 | 60.1 | 49.7 | 41.1 | 30.7 | 47.1 |
| NEW YORK (JFK AP), NY | 30 | 24.9 | 26.3 | 34 | 42.8 | 52.4 | 61.8 | 68.1 | 67.3 | 60.1 | 49.3 | 40.5 | 30.5 | 46.5 |
| NEW YORK (LAGUARDIA AP), NY | 30 | 25.5 | 27.1 | 34.6 | 43.9 | 53.8 | 63.3 | 68.9 | 68.3 | 61.3 | 50.6 | 41.5 | 31.1 | 47.5 |
| ROCHESTER, NY | 30 | 16.3 | 16.6 | 25.7 | 35.9 | 46.3 | 54.3 | 59.6 | 57.8 | 51.7 | 41.6 | 33.3 | 22.4 | 38.5 |
| SYRACUSE, NY | 30 | 14.2 | 15.4 | 25.1 | 35.5 | 46 | 53.8 | 59 | 57.7 | 51.4 | 41.1 | 33 | 21.1 | 37.8 |
| ASHEVILLE, NC | 30 | 24.8 | 27.4 | 35.4 | 42.6 | 50.9 | 58.3 | 62.7 | 61.9 | 55.5 | 43.5 | 35.7 | 28.6 | 43.9 |
| CAPE HATTERAS, NC | 30 | 36.7 | 37.6 | 43.6 | 50.8 | 59.6 | 67.5 | 71.8 | 72 | 67.6 | 58.3 | 49.3 | 41.1 | 54.7 |
| CHARLOTTE, NC | 30 | 29.6 | 31.9 | 39.4 | 47.5 | 56.4 | 65.6 | 69.6 | 68.9 | 62.9 | 50.6 | 41.5 | 32.8 | 49.7 |
| GREENSBORO-WNSTN-SALM,NC | 30 | 26.6 | 29.3 | 37.4 | 45.6 | 54.7 | 62.6 | 66.9 | 65.9 | 59.5 | 47.2 | 38.5 | 30.5 | 47.1 |
| RALEIGH, NC | 30 | 28.8 | 31.3 | 38.7 | 46.2 | 55.3 | 63.6 | 68.1 | 67.5 | 61.1 | 48.4 | 39.7 | 32.4 | 48.4 |
| WILMINGTON, NC | 30 | 34.4 | 36.4 | 43.1 | 50.5 | 59.3 | 67.5 | 71.7 | 71 | 65.3 | 53.7 | 44.8 | 37.5 | 52.9 |
| BISMARCK, ND | 30 | -1.7 | 5.1 | 17.8 | 31 | 42.2 | 51.6 | 56.4 | 53.9 | 43.1 | 32.5 | 17.8 | 3.3 | 29.4 |
| FARGO, ND | 30 | -3.6 | 2.7 | 17.3 | 32.1 | 43.8 | 53.6 | 58.8 | 56.4 | 45.9 | 34.6 | 19.4 | 3.1 | 30.3 |
| WILLISTON, ND | 30 | -1.8 | 5.3 | 17.4 | 30.5 | 42.2 | 51.4 | 56.5 | 54.1 | 42.4 | 31.4 | 16.3 | 2.8 | 29 |
| AKRON, OH | 30 | 16.9 | 18.9 | 28.6 | 37.9 | 48.2 | 57 | 61.5 | 60.1 | 53.7 | 42.7 | 34.2 | 23.6 | 40.3 |
| CLEVELAND, OH | 30 | 17.6 | 19.3 | 28.2 | 37.3 | 47.3 | 56.8 | 61.4 | 60.3 | 54.2 | 43.5 | 35 | 24.5 | 40.5 |
| COLUMBUS, OH | 30 | 18.5 | 21.2 | 31.2 | 40 | 50.1 | 58 | 62.7 | 60.8 | 54.8 | 42.9 | 34.3 | 24.6 | 41.6 |
| DAYTON, OH | 30 | 17.9 | 20.8 | 31 | 40.5 | 51 | 59.2 | 63.4 | 61.3 | 55.1 | 43.6 | 34.4 | 24 | 41.9 |
| MANSFIELD, OH | 30 | 16.8 | 18.9 | 28.6 | 38.2 | 48.3 | 57.3 | 62 | 60.4 | 54 | 43.1 | 33.9 | 22.7 | 40.4 |
| TOLEDO, OH | 30 | 14.9 | 17 | 26.8 | 36.4 | 46.7 | 56 | 60.6 | 58.4 | 51.5 | 40 | 31.5 | 20.5 | 38.4 |
| YOUNGSTOWN, OH | 30 | 16.4 | 17.9 | 27.3 | 36.8 | 46.2 | 54.9 | 59.2 | 57.9 | 51.6 | 41.5 | 33.6 | 22.9 | 38.9 |
| OKLAHOMA CITY, OK | 30 | 25.2 | 29.6 | 38.5 | 48.8 | 57.7 | 66.1 | 70.6 | 69.6 | 62.2 | 50.4 | 38.6 | 28.6 | 48.8 |
| TULSA, OK | 30 | 24.9 | 29.5 | 39.1 | 49.9 | 58.8 | 67.7 | 72.8 | 70.6 | 63 | 50.7 | 39.5 | 28.9 | 49.6 |
| ASTORIA, OR | 30 | 35.9 | 37.3 | 38.1 | 40.3 | 44.8 | 49.5 | 52.4 | 52.6 | 49 | 44 | 40.2 | 36.6 | 43.4 |
| BURNS,OR | 30 | 13 | 19.3 | 24.9 | 29 | 35.9 | 41.6 | 47.2 | 45 | 36.3 | 28.1 | 22 | 15.1 | 29.8 |
| EUGENE, OR | 30 | 35.2 | 37 | 38.9 | 40.6 | 44.5 | 49.7 | 52.8 | 53.2 | 49.3 | 43.5 | 39.7 | 35.9 | 43.4 |
| MEDFORD, OR | 30 | 30.4 | 32.2 | 35.4 | 38 | 43.4 | 50.7 | 55.2 | 55.1 | 48.2 | 40.4 | 35.5 | 31.2 | 41.3 |
| PENDLETON, OR | 30 | 27.2 | 31.6 | 35.4 | 39.4 | 45.8 | 52.9 | 58 | 57.7 | 49.9 | 41 | 34.1 | 27.9 | 41.7 |
| PORTLAND, OR | 30 | 33.7 | 36.1 | 38.6 | 41.3 | 47 | 52.9 | 56.5 | 56.9 | 52 | 44.9 | 39.5 | 34.8 | 44.5 |
| SALEM, OR | 30 | 32.7 | 34.1 | 35.6 | 37.7 | 42.2 | 48.3 | 50.9 | 51.4 | 47.1 | 41.1 | 37.5 | 33.6 | 41 |
| SEXTON SUMMIT, OR | 30 | 30.6 | 32 | 31.8 | 33.7 | 39.2 | 45.9 | 51.7 | 52.9 | 49.2 | 43.6 | 35 | 31.3 | 39.7 |
| GUAM, PC | 30 | 71 | 70.9 | 71.1 | 72.1 | 72.6 | 72.9 | 72.4 | 72.2 | 72.2 | 72.4 | 73.1 | 72.7 | 72.1 |
| JOHNSTON ISLAND, PC | 30 | 73.1 | 73 | 73.1 | 74 | 75.3 | 76.4 | 77.2 | 77.7 | 77.5 | 77.2 | 75.6 | 73.9 | 75.3 |
| KOROR, PC | 30 | 75.1 | 75 | 75.3 | 75.9 | 76.1 | 75.5 | 75.4 | 75.7 | 76.1 | 75.9 | 76 | 75.6 | 75.6 |
| KWAJALEIN, MARSHALL IS., PC | 30 | 77 | 77.1 | 77.4 | 77.4 | 77.3 | 77.2 | 77.1 | 77.2 | 77.1 | 77.3 | 77.3 | 77.3 | 77.2 |
| MAJURO, MARSHALL IS, PC | 30 | 76.5 | 76.7 | 76.6 | 76.5 | 76.6 | 76.3 | 76.1 | 76.3 | 76.3 | 76.2 | 76.3 | 76.3 | 76.4 |
| PAGO PAGO, AMER SAMOA, PC | 30 | 75.4 | 75.4 | 75.6 | 75.2 | 75.2 | 75.3 | 74.5 | 74.3 | 74.7 | 75.3 | 75.3 | 75.4 | 75.1 |
| POHNPEI, CAROLINE IS., PC | 30 | 75.5 | 75.6 | 75.6 | 75 | 74.8 | 74.1 | 73.1 | 73 | 72.9 | 72.9 | 73.4 | 74.9 | 74.2 |
| CHUUK, E. CAROLINE IS., PC | 30 | 76.9 | 77 | 77.1 | 77 | 76.8 | 76.2 | 75.5 | 75.5 | 75.6 | 75.7 | 76.3 | 77 | 76.4 |
| WAKE ISLAND, PC | 30 | 72.7 | 72.1 | 72.9 | 73.4 | 75.1 | 76.7 | 77.3 | 77.4 | 77.7 | 77.2 | 76.1 | 74.2 | 75.2 |
| YAP, W CAROLINE IS., PC | 30 | 74.6 | 74.8 | 74.9 | 75.3 | 75.5 | 75 | 74.6 | 74.5 | 74.6 | 74.7 | 74.9 | 75 | 74.9 |
| ALLENTOWN, PA | 30 | 18.8 | 20.9 | 29.9 | 38.8 | 49.3 | 58.8 | 63.6 | 62 | 54.2 | 42.5 | 34.2 | 24.4 | 41.5 |
| ERIE, PA. | 30 | 18.2 | 17.9 | 28.1 | 37.7 | 47.8 | 57.6 | 62.6 | 61.8 | 55.9 | 45.6 | 37 | 25.2 | 41.3 |
| HARRISBURG, PA | 30 | 21.2 | 23.3 | 32 | 41.2 | 51.1 | 60.6 | 65.6 | 64.3 | 56.5 | 44.6 | 36.1 | 26.6 | 43.6 |
| MIDDLETOWN/HARRISBURG INTL APT | 30 | 21.2 | 23.3 | 32 | 41.2 | 51.1 | 60.6 | 65.6 | 64.3 | 56.5 | 44.6 | 36.1 | 26.6 | 43.6 |
| PHILADELPHIA, PA | 30 | 22.8 | 24.8 | 33.2 | 42.1 | 52.7 | 61.8 | 67.2 | 66.3 | 58.7 | 46.4 | 37.6 | 28.1 | 45.1 |
| PITTSBURGH, PA | 30 | 18.5 | 20.3 | 29.8 | 38.8 | 48.4 | 56.9 | 61.6 | 60.2 | 53.5 | 42.3 | 34.1 | 24.4 | 40.7 |
| AVOCA, PA | 30 | 17.5 | 19 | 28.3 | 38.1 | 48.3 | 56.8 | 61.6 | 60 | 52.8 | 42.1 | 33.9 | 23.4 | 40.2 |
| WILLIAMSPORT, PA | 30 | 17.1 | 19.2 | 28.5 | 38.1 | 47.9 | 56.6 | 61.5 | 60.5 | 53.1 | 41.6 | 33.6 | 23.9 | 40.1 |
| PROVIDENCE, RI | 30 | 19.1 | 20.9 | 28.8 | 37.7 | 47.3 | 56.8 | 63.2 | 61.9 | 53.8 | 43 | 34.9 | 24.4 | 41 |
| CHARLESTON AP,SC | 30 | 37.7 | 40 | 47.5 | 53.9 | 62.9 | 69.1 | 72.7 | 72.2 | 67.9 | 56.3 | 47.2 | 40.7 | 55.7 |
| CHARLESTON C.O.,SC | 30 | 40.8 | 43.2 | 50.3 | 57.8 | 66 | 72.4 | 75.4 | 74.9 | 70.7 | 60.7 | 52.1 | 44.6 | 59.1 |
| COLUMBIA, SC | 30 | 32.1 | 34.2 | 42.2 | 49.4 | 58.2 | 66 | 70 | 69.2 | 63.2 | 50.1 | 41.5 | 34.9 | 50.9 |
| GREENVILLE-SPARTANBURG AP, SC | 30 | 30 | 32.4 | 39.9 | 47.6 | 56.4 | 64.4 | 68.3 | 67.4 | 61.2 | 49 | 40.5 | 33.4 | 49.2 |
| ABERDEEN, SD | 30 | -0.6 | 6.5 | 19.8 | 33 | 44.5 | 54.3 | 59.6 | 56.8 | 46.1 | 34.2 | 19.9 | 5.3 | 31.6 |
| HURON, SD | 30 | 2.3 | 9.1 | 21.7 | 34 | 44.8 | 55.5 | 61.7 | 58.8 | 47.3 | 35.4 | 21.8 | 7.8 | 33.4 |
| RAPID CITY, SD | 30 | 10.7 | 15.2 | 22.2 | 32.2 | 42.3 | 51.7 | 58.2 | 56.1 | 45.5 | 34.9 | 22.8 | 12.7 | 33.7 |
| SIOUX FALLS, SD | 30 | 3.3 | 9.7 | 22.6 | 34.8 | 45.9 | 56.1 | 62.3 | 59.4 | 48.7 | 36 | 22.6 | 8.6 | 34.2 |
| BRISTOL-JHNSN CTY-KNGSPRT, TN | 30 | 24.3 | 26.8 | 35.4 | 43 | 51.6 | 59.9 | 64.1 | 63.1 | 56.6 | 44.2 | 35.9 | 28.2 | 44.4 |
| CHATTANOOGA, TN | 30 | 28 | 31.1 | 39 | 46.8 | 55.4 | 63.9 | 68.3 | 67.7 | 62.6 | 48.9 | 39.9 | 31.2 | 48.6 |
| KNOXVILLE, TN | 30 | 26 | 29.1 | 36.6 | 44.6 | 53.1 | 61.8 | 66 | 65.3 | 59 | 46 | 37.5 | 30 | 46.3 |
| MEMPHIS, TN | 30 | 30.9 | 34.8 | 43 | 52.4 | 61.2 | 68.9 | 72.9 | 71.1 | 64.5 | 51.9 | 42.7 | 34.8 | 52.4 |
| NASHVILLE, TN | 30 | 26.5 | 29.9 | 39.1 | 47.5 | 56.6 | 64.7 | 68.9 | 67.7 | 61.1 | 48.3 | 39.6 | 30.9 | 48.4 |
| OAK RIDGE,TN | 30 | 25.1 | 27.7 | 35.7 | 43.5 | 52.2 | 60.5 | 64.9 | 64.3 | 58 | 44.8 | 36.2 | 28.7 | 45.1 |
| ABILENE, TX | 30 | 30.8 | 35.1 | 43.3 | 52.9 | 61.1 | 68.9 | 72.7 | 71.7 | 65.3 | 54.8 | 43.4 | 33.9 | 52.8 |
| AMARILLO, TX | 30 | 21.2 | 25.5 | 32.7 | 42.1 | 51.6 | 60.7 | 65.5 | 63.8 | 56.4 | 44.5 | 32.3 | 23.7 | 43.3 |
| AUSTIN, TX | 30 | 38.6 | 42.1 | 51.1 | 59.8 | 66.5 | 71.5 | 73.9 | 73.9 | 69.8 | 60 | 49.9 | 41.2 | 58.2 |
| BROWNSVILLE, TX | 30 | 49.9 | 52.5 | 59.1 | 66.5 | 72 | 74.9 | 75.7 | 75.4 | 73.2 | 66.1 | 59 | 52.4 | 64.7 |
| CORPUS CHRISTI, TX | 30 | 45.3 | 48 | 55.3 | 63.2 | 69.5 | 73.4 | 74.8 | 75 | 72.3 | 63.9 | 55.6 | 48.4 | 62.1 |
| DALLAS-FORT WORTH, TX | 30 | 32.7 | 36.9 | 45.6 | 54.7 | 62.6 | 70 | 74.1 | 73.6 | 66.9 | 55.8 | 45.4 | 36.3 | 54.6 |
| DEL RIO, TX | 30 | 38.5 | 42.9 | 50.9 | 59.2 | 66.3 | 71.7 | 74.1 | 73.6 | 69.1 | 59.7 | 49 | 40.6 | 58 |
| EL PASO, TX | 30 | 29.4 | 33.9 | 40.2 | 48 | 56.5 | 64.3 | 68.4 | 66.6 | 61.6 | 49.6 | 38.4 | 30.7 | 49 |
| GALVESTON, TX | 30 | 47.1 | 49.9 | 56.7 | 65 | 71.8 | 77.2 | 79.2 | 79.2 | 75.4 | 68 | 59 | 50.9 | 65 |
| HOUSTON, TX | 30 | 39.7 | 42.6 | 50 | 58.1 | 64.4 | 70.6 | 72.4 | 72 | 67.9 | 57.6 | 49.6 | 42.2 | 57.3 |
| LUBBOCK, TX | 30 | 24.6 | 28.6 | 36.4 | 46.7 | 55.8 | 64.3 | 68 | 66.2 | 59.4 | 48.1 | 36.5 | 27.2 | 46.8 |
| MIDLAND-ODESSA, TX | 30 | 28.5 | 32.6 | 40.2 | 49.4 | 58.1 | 65.7 | 68.5 | 67.5 | 61.1 | 50.6 | 38.9 | 30.8 | 49.3 |
| PORT ARTHUR, TX | 30 | 41.5 | 44.4 | 51.3 | 59.5 | 66.3 | 72 | 73.7 | 73.3 | 69.7 | 59.2 | 51.2 | 44.3 | 58.9 |
| SAN ANGELO, TX | 30 | 30.6 | 34.7 | 43.5 | 52.7 | 61.1 | 66.4 | 69.1 | 68.4 | 64 | 53.6 | 42.6 | 33 | 51.6 |
| SAN ANTONIO, TX | 30 | 37.9 | 41.3 | 49.7 | 58.4 | 65.7 | 72.6 | 75 | 74.5 | 69.2 | 58.8 | 48.8 | 40.8 | 57.7 |
| VICTORIA, TX | 30 | 42.5 | 45.4 | 52.8 | 61 | 67.7 | 72.7 | 74.6 | 74.2 | 70.3 | 60.9 | 52.4 | 45.2 | 60 |
| WACO, TX | 30 | 34.2 | 38 | 46.8 | 56.2 | 64.2 | 70.9 | 74.4 | 74 | 67.6 | 56.8 | 46.6 | 37.3 | 55.6 |
| WICHITA FALLS, TX | 30 | 27.6 | 32.1 | 40.6 | 50.3 | 59.1 | 68 | 72.7 | 71.4 | 63.9 | 52.2 | 40.6 | 30.8 | 50.8 |
| MILFORD, UT | 30 | 12.5 | 18.5 | 24.2 | 30.4 | 38.1 | 46.6 | 55.3 | 54 | 43.8 | 32.5 | 22.9 | 14 | 32.7 |
| SALT LAKE CITY, UT | 30 | 19.3 | 24.6 | 31.4 | 37.9 | 45.6 | 55.4 | 63.7 | 61.8 | 51 | 40.2 | 30.9 | 21.6 | 40.3 |
| BURLINGTON, VT | 30 | 7.5 | 8.9 | 22 | 34.2 | 45.4 | 54.6 | 59.7 | 57.9 | 48.8 | 38.6 | 29.6 | 15.5 | 35.2 |
| LYNCHBURG, VA | 30 | 24.7 | 27.4 | 35.4 | 43.8 | 52.6 | 60.8 | 65.1 | 64.4 | 57.7 | 45.7 | 37.3 | 29.1 | 45.3 |
| NORFOLK, VA | 30 | 30.9 | 32.3 | 39.3 | 47.1 | 56.8 | 65.2 | 70 | 69.4 | 64.2 | 52.9 | 43.8 | 35.4 | 50.6 |
| RICHMOND, VA | 30 | 25.7 | 28.1 | 36.3 | 44.6 | 54.2 | 62.7 | 67.5 | 66.4 | 59 | 46.5 | 37.9 | 29.9 | 46.6 |
| ROANOKE, VA | 30 | 25 | 27.2 | 35.7 | 43.8 | 52.5 | 60.2 | 64.8 | 63.8 | 56.8 | 44.8 | 37 | 28.9 | 45 |
| WALLOPS ISLAND, VA | 30 | 27.4 | 29.3 | 36.5 | 44.6 | 54.4 | 63.3 | 68.5 | 67.8 | 62 | 50.5 | 41.1 | 32.2 | 48.1 |
| OLYMPIA, WA | 30 | 31.6 | 32.7 | 33.6 | 36.2 | 41 | 46.4 | 49.2 | 49.5 | 44.7 | 38.8 | 35 | 32.1 | 39.2 |
| QUILLAYUTE, WA | 30 | 33.7 | 34.9 | 35.2 | 37.3 | 41.8 | 46.5 | 49.4 | 49.7 | 46.2 | 41.4 | 37.2 | 34.4 | 40.6 |
| SEATTLE C.O., WA | 30 | 36.4 | 38 | 39.5 | 42.7 | 47.9 | 53.2 | 56.4 | 57.2 | 52.9 | 46.9 | 41 | 37 | 45.8 |
| SEATTLE SEA-TAC AP, WA | 30 | 35.2 | 37.4 | 38.5 | 41.2 | 46.3 | 51.9 | 55.2 | 55.7 | 51.9 | 45.8 | 40.1 | 35.8 | 44.6 |
| SPOKANE, WA | 30 | 20.8 | 25.9 | 29.6 | 34.7 | 41.9 | 49.2 | 54.4 | 54.3 | 45.8 | 36 | 28.8 | 21.7 | 36.9 |
| YAKIMA, WA | 30 | 21.8 | 26.4 | 30.8 | 35.5 | 42.3 | 49.2 | 53.1 | 52.3 | 44.6 | 35.3 | 29 | 22.1 | 36.9 |
| SAN JUAN, PR | 30 | 70.8 | 70.6 | 71.6 | 72.9 | 74.5 | 76.1 | 76.8 | 76.7 | 76.2 | 75.5 | 74 | 72.4 | 74 |
| BECKLEY, WV | 30 | 20.4 | 22.9 | 32.1 | 40.4 | 48.9 | 56.1 | 60.1 | 59.1 | 53 | 42.1 | 34.4 | 25.6 | 41.3 |
| CHARLESTON, WV | 30 | 23 | 25.7 | 35 | 42.8 | 51.5 | 59.8 | 64.4 | 63.4 | 56.5 | 44.2 | 36.3 | 28 | 44.2 |
| ELKINS, WV | 30 | 16.2 | 18.3 | 27.1 | 34.8 | 44 | 52 | 56.9 | 56.2 | 49.9 | 37.2 | 29.7 | 21.3 | 37 |
| HUNTINGTON, WV | 30 | 23.2 | 26.1 | 35.5 | 43.8 | 52.4 | 60.4 | 65 | 63.9 | 57.1 | 45 | 37 | 28.4 | 44.8 |
| GREEN BAY, WI | 30 | 5.8 | 9.5 | 21.4 | 33.9 | 43.7 | 53.5 | 58.9 | 56.8 | 48.8 | 38.5 | 26.8 | 12.5 | 34.2 |
| LA CROSSE, WI | 30 | 5.3 | 10.1 | 23.6 | 37 | 48.1 | 57.1 | 62.3 | 59.9 | 51.2 | 40.2 | 27.7 | 12.5 | 36.3 |
| MADISON, WI | 30 | 7.2 | 11.1 | 23 | 34.1 | 44.2 | 54.2 | 59.5 | 56.9 | 48.2 | 37.7 | 26.7 | 13.5 | 34.7 |
| MILWAUKEE, WI | 30 | 11.6 | 15.9 | 26.2 | 35.8 | 44.8 | 55 | 62 | 60.8 | 52.8 | 41.8 | 30.7 | 17.5 | 37.9 |
| CASPER, WY | 30 | 12 | 16 | 21.8 | 29.5 | 37.9 | 46.9 | 54 | 51.8 | 41.6 | 32.2 | 21.8 | 13.7 | 31.6 |
| CHEYENNE, WY | 30 | 15.2 | 18.1 | 22.1 | 30.1 | 39.4 | 48.3 | 54.6 | 52.8 | 43.7 | 33.9 | 23.7 | 16.7 | 33.2 |
| LANDER, WY | 30 | 7.8 | 13.6 | 22.1 | 30.7 | 39.9 | 48.8 | 55.9 | 53.8 | 44.2 | 33.7 | 19.9 | 9.4 | 31.7 |
| SHERIDAN, WY | 30 | 8.5 | 14.5 | 21.5 | 30.4 | 39 | 47.3 | 53 | 51.7 | 41.4 | 31.7 | 19.7 | 10.2 | 30.7 |