| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 36.5 | 43.5 | 53.1 | 61.3 | 71.0 | 82.0 | 86.9 | 84.7 | 76.8 | 64.6 | 48.2 | 37.9 | 62.2 |
| Highest Mean Max. Temperature (F) | 45.2 | 53.5 | 62.2 | 68.0 | 76.4 | 87.0 | 90.5 | 87.7 | 82.4 | 69.6 | 57.3 | 46.8 | 90.5 |
| Year Highest Occurred | 1981 | 1995 | 1999 | 1992 | 2000 | 1977 | 2000 | 1985 | 1979 | 1988 | 1999 | 1980 | 2000 |
| Lowest Mean Max. Temperature (F) | 26.5 | 35.1 | 47.3 | 54.5 | 65.3 | 76.9 | 82.2 | 81.8 | 71.2 | 56.2 | 41.1 | 28.4 | 26.5 |
| Year Lowest Occurred | 1979 | 1974 | 1984 | 1983 | 1995 | 1983 | 1992 | 1993 | 1986 | 1984 | 1972 | 1978 | 1979 |
| Mean Temperature (F) | 25.6 | 32.1 | 41.0 | 48.2 | 57.0 | 66.7 | 71.8 | 70.1 | 62.0 | 50.4 | 36.7 | 27.3 | 49.1 |
| Highest Mean Temperature (F) | 33.4 | 40.4 | 46.8 | 53.7 | 61.1 | 71.4 | 74.2 | 72.1 | 66.4 | 54.9 | 41.6 | 36.3 | 74.2 |
| Year Highest Occurred | 1981 | 1995 | 1999 | 1992 | 1984 | 1977 | 1988 | 1995 | 1998 | 1988 | 1999 | 1980 | 1988 |
| Lowest Mean Temperature (F) | 17.3 | 21.9 | 36.4 | 43.9 | 52.5 | 62.3 | 68.1 | 67.5 | 58.0 | 45.3 | 31.1 | 18.6 | 17.3 |
| Year Lowest Occurred | 1979 | 1974 | 1977 | 1983 | 1995 | 1995 | 1995 | 1989 | 1971 | 1984 | 2000 | 1978 | 1979 |
| Mean Min. Temperature (F) | 14.7 | 20.6 | 28.8 | 35.0 | 43.0 | 51.3 | 56.7 | 55.4 | 47.1 | 36.1 | 25.2 | 16.6 | 35.9 |
| Highest Mean Min. Temperature (F) | 22.2 | 27.3 | 33.7 | 40.5 | 47.1 | 55.8 | 59.6 | 58.9 | 52.1 | 40.6 | 28.5 | 25.7 | 59.6 |
| Year Highest Occurred | 1980 | 1995 | 1978 | 1981 | 1984 | 1977 | 1984 | 1982 | 1998 | 1972 | 1981 | 1980 | 1984 |
| Lowest Mean Min. Temperature (F) | 6.1 | 8.6 | 24.0 | 30.9 | 39.7 | 47.2 | 52.3 | 52.2 | 42.3 | 32.3 | 18.9 | 8.8 | 6.1 |
| Year Lowest Occurred | 1973 | 1974 | 1977 | 1974 | 1995 | 1995 | 1995 | 1976 | 1971 | 1999 | 2000 | 1978 | 1973 |
| Mean Precipitation (in.) | 0.54 | 0.37 | 0.74 | 0.78 | 1.00 | 0.59 | 0.99 | 1.10 | 1.06 | 1.07 | 0.88 | 0.59 | 9.71 |
| Highest Precipitation (in.) | 1.96 | 0.98 | 2.25 | 2.42 | 2.48 | 1.79 | 2.98 | 3.14 | 3.36 | 2.60 | 2.75 | 1.98 | 3.36 |
| Year Highest Occurred | 1974 | 1987 | 1995 | 1990 | 1995 | 1984 | 1983 | 1999 | 1997 | 1972 | 1986 | 1978 | 1997 |
| Lowest Precipitation (in.) | 0.11 | 0.00 | 0.02 | 0.11 | 0.00 | 0.00 | 0.04 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1986 | 1972 | 1999 | 1982 | 1998 | 1980 | 1994 | 1978 | 1979 | 1999 | 1989 | 1976 | 1972 |
| Heating Degree Days (F) | 1222. | 922. | 745. | 506. | 258. | 57. | 2. | 7. | 128. | 454. | 849. | 1170. | 6320. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 9. | 107. | 214. | 162. | 35. | 1. | 0. | 0. | 528. |