| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 41.2 | 46.3 | 53.8 | 60.1 | 67.8 | 75.9 | 84.5 | 84.7 | 76.2 | 63.7 | 48.2 | 40.8 | 61.9 |
| Highest Mean Max. Temperature (F) | 49.9 | 52.9 | 58.6 | 67.6 | 74.9 | 83.1 | 89.9 | 90.1 | 82.3 | 72.6 | 54.3 | 49.4 | 90.1 |
| Year Highest Occurred | 1994 | 1991 | 1986 | 1977 | 1992 | 1986 | 1998 | 1981 | 1990 | 1988 | 1989 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 25.0 | 35.5 | 48.4 | 54.3 | 61.3 | 70.0 | 74.4 | 78.2 | 68.3 | 57.8 | 36.9 | 28.0 | 25.0 |
| Year Lowest Occurred | 1979 | 1993 | 1975 | 1975 | 1977 | 1991 | 1993 | 1976 | 1985 | 1984 | 1985 | 1985 | 1979 |
| Mean Temperature (F) | 32.7 | 36.4 | 41.2 | 45.8 | 52.3 | 59.0 | 65.2 | 65.0 | 57.9 | 48.6 | 38.6 | 32.3 | 47.9 |
| Highest Mean Temperature (F) | 39.5 | 41.8 | 45.6 | 51.6 | 56.7 | 64.5 | 70.1 | 68.5 | 62.6 | 55.1 | 44.1 | 39.7 | 70.1 |
| Year Highest Occurred | 1994 | 1991 | 1986 | 1990 | 1993 | 1986 | 1998 | 1986 | 1990 | 1988 | 1999 | 1980 | 1998 |
| Lowest Mean Temperature (F) | 17.2 | 25.1 | 37.5 | 40.2 | 47.8 | 55.0 | 58.2 | 60.7 | 52.7 | 44.6 | 27.0 | 19.7 | 17.2 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1977 | 1976 | 1993 | 1975 | 1985 | 1971 | 1985 | 1985 | 1979 |
| Mean Min. Temperature (F) | 24.2 | 26.4 | 28.5 | 31.4 | 36.8 | 42.0 | 45.8 | 45.2 | 39.5 | 33.4 | 28.9 | 23.7 | 33.8 |
| Highest Mean Min. Temperature (F) | 29.8 | 33.2 | 33.6 | 36.2 | 41.5 | 45.8 | 50.3 | 50.2 | 42.9 | 38.2 | 34.4 | 30.4 | 50.3 |
| Year Highest Occurred | 1971 | 1983 | 1983 | 1990 | 1993 | 1986 | 1998 | 1977 | 1990 | 1979 | 1999 | 1973 | 1998 |
| Lowest Mean Min. Temperature (F) | 9.3 | 13.8 | 24.6 | 26.1 | 33.9 | 37.5 | 41.9 | 40.5 | 35.0 | 29.6 | 16.6 | 11.4 | 9.3 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1978 | 1976 | 1993 | 1980 | 1971 | 1971 | 1993 | 1985 | 1979 |
| Mean Precipitation (in.) | 1.38 | 0.94 | 0.95 | 0.79 | 0.88 | 0.67 | 0.41 | 0.57 | 0.43 | 0.69 | 1.41 | 1.22 | 10.34 |
| Highest Precipitation (in.) | 2.75 | 3.00 | 2.25 | 2.08 | 2.34 | 1.95 | 2.64 | 2.90 | 1.69 | 1.91 | 4.97 | 4.50 | 4.97 |
| Year Highest Occurred | 1998 | 1986 | 1983 | 1978 | 1998 | 1978 | 1987 | 1976 | 1982 | 1982 | 1984 | 1981 | 1984 |
| Lowest Precipitation (in.) | 0.11 | 0.04 | 0.06 | 0.03 | 0.11 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.22 | 0.02 | 0.00 |
| Year Lowest Occurred | 1985 | 1990 | 1977 | 1977 | 1974 | 1974 | 1988 | 2000 | 1999 | 1988 | 1990 | 1976 | 1974 |
| Heating Degree Days (F) | 1002. | 803. | 739. | 577. | 394. | 198. | 76. | 78. | 233. | 509. | 794. | 1016. | 6419. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 16. | 81. | 77. | 19. | 0. | 0. | 0. | 193. |