| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 61.8 | 67.9 | 76.1 | 84.0 | 91.5 | 98.5 | 98.4 | 96.4 | 90.3 | 82.1 | 70.7 | 62.7 | 81.7 |
| Highest Mean Max. Temperature (F) | 69.5 | 77.5 | 81.6 | 89.6 | 99.3 | 106.6 | 103.9 | 101.2 | 97.1 | 89.3 | 78.2 | 69.5 | 106.6 |
| Year Highest Occurred | 1999 | 1999 | 1974 | 1989 | 1996 | 1990 | 1998 | 1977 | 1998 | 1979 | 1981 | 1977 | 1990 |
| Lowest Mean Max. Temperature (F) | 52.0 | 61.5 | 70.3 | 77.9 | 84.4 | 92.9 | 91.6 | 88.0 | 80.8 | 75.8 | 61.3 | 57.7 | 52.0 |
| Year Lowest Occurred | 1979 | 1978 | 1981 | 1983 | 1992 | 1986 | 1976 | 1971 | 1974 | 1984 | 2000 | 1986 | 1979 |
| Mean Temperature (F) | 45.6 | 50.6 | 57.9 | 65.8 | 74.4 | 82.0 | 83.7 | 81.9 | 75.5 | 65.9 | 54.2 | 46.5 | 65.3 |
| Highest Mean Temperature (F) | 50.8 | 57.4 | 61.2 | 70.3 | 80.2 | 88.8 | 88.1 | 86.7 | 81.1 | 69.1 | 61.1 | 52.1 | 88.8 |
| Year Highest Occurred | 1999 | 2000 | 1997 | 1986 | 2000 | 1990 | 1980 | 1977 | 1998 | 1979 | 1983 | 1977 | 1990 |
| Lowest Mean Temperature (F) | 40.3 | 45.1 | 53.2 | 60.5 | 70.1 | 77.8 | 79.1 | 76.8 | 69.0 | 59.8 | 46.1 | 42.2 | 40.3 |
| Year Lowest Occurred | 1979 | 1985 | 1987 | 1973 | 1976 | 1979 | 1976 | 1971 | 1974 | 1976 | 1976 | 1989 | 1979 |
| Mean Min. Temperature (F) | 29.4 | 33.2 | 39.7 | 47.6 | 57.3 | 65.4 | 68.9 | 67.4 | 60.7 | 49.7 | 37.6 | 30.3 | 48.9 |
| Highest Mean Min. Temperature (F) | 33.6 | 39.3 | 42.8 | 51.6 | 61.6 | 70.9 | 72.4 | 72.2 | 65.2 | 54.6 | 45.5 | 35.0 | 72.4 |
| Year Highest Occurred | 1993 | 2000 | 1994 | 1990 | 2000 | 1990 | 1980 | 1977 | 1977 | 1983 | 1983 | 1994 | 1980 |
| Lowest Mean Min. Temperature (F) | 23.0 | 28.4 | 34.7 | 41.2 | 52.0 | 61.7 | 66.3 | 63.8 | 55.5 | 43.6 | 30.9 | 24.2 | 23.0 |
| Year Lowest Occurred | 1985 | 1985 | 1988 | 1973 | 1975 | 1973 | 1975 | 1996 | 1996 | 1976 | 1976 | 1985 | 1985 |
| Mean Precipitation (in.) | 0.44 | 0.38 | 0.19 | 0.53 | 0.95 | 1.94 | 1.86 | 1.44 | 2.31 | 1.05 | 0.52 | 0.55 | 12.16 |
| Highest Precipitation (in.) | 1.38 | 1.99 | 1.14 | 4.07 | 3.31 | 8.48 | 5.35 | 4.71 | 8.34 | 3.46 | 3.27 | 3.90 | 8.48 |
| Year Highest Occurred | 1974 | 1973 | 1981 | 1981 | 1999 | 1986 | 1990 | 1971 | 1978 | 1974 | 1978 | 1986 | 1986 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 2000 | 1999 | 1996 | 1998 | 2000 | 1990 | 1987 | 1994 | 1998 | 1992 | 1999 | 1996 | 2000 |
| Heating Degree Days (F) | 602. | 404. | 231. | 76. | 9. | 0. | 0. | 0. | 6. | 59. | 339. | 574. | 2300. |
| Cooling Degree Days (F) | 0. | 0. | 11. | 99. | 301. | 508. | 577. | 523. | 321. | 86. | 14. | 0. | 2440. |