| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 49.1 | 54.4 | 58.3 | 62.8 | 69.2 | 76.1 | 83.3 | 83.8 | 79.1 | 68.4 | 54.5 | 47.9 | 65.6 |
| Highest Mean Max. Temperature (F) | 53.5 | 62.7 | 64.6 | 69.6 | 78.6 | 80.8 | 89.4 | 89.3 | 86.4 | 76.4 | 59.9 | 52.2 | 89.4 |
| Year Highest Occurred | 1994 | 1992 | 1992 | 1987 | 1992 | 1986 | 1985 | 1986 | 1974 | 1987 | 1995 | 1995 | 1985 |
| Lowest Mean Max. Temperature (F) | 44.0 | 47.8 | 52.3 | 55.0 | 61.8 | 69.4 | 75.2 | 78.6 | 71.6 | 62.0 | 47.0 | 42.6 | 42.6 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1985 | 1990 | 1990 |
| Mean Temperature (F) | 41.4 | 45.0 | 47.8 | 51.2 | 56.8 | 62.7 | 68.3 | 68.1 | 62.9 | 54.9 | 46.5 | 41.1 | 53.9 |
| Highest Mean Temperature (F) | 45.5 | 51.1 | 52.8 | 55.8 | 63.0 | 66.5 | 72.1 | 71.9 | 66.4 | 59.6 | 52.0 | 46.3 | 72.1 |
| Year Highest Occurred | 1998 | 1995 | 1993 | 1989 | 1992 | 1992 | 1985 | 1986 | 1995 | 1988 | 1995 | 1995 | 1985 |
| Lowest Mean Temperature (F) | 35.9 | 37.6 | 43.3 | 45.5 | 51.2 | 58.4 | 64.2 | 64.9 | 58.1 | 51.7 | 39.8 | 35.3 | 35.3 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1977 | 1976 | 1983 | 1980 | 1985 | 1984 | 1985 | 1990 | 1990 |
| Mean Min. Temperature (F) | 33.7 | 35.5 | 37.3 | 39.5 | 44.3 | 49.2 | 53.2 | 52.3 | 46.6 | 41.4 | 38.4 | 34.2 | 42.1 |
| Highest Mean Min. Temperature (F) | 39.1 | 41.5 | 42.5 | 43.3 | 47.4 | 53.1 | 56.7 | 55.9 | 50.8 | 46.0 | 44.1 | 40.3 | 56.7 |
| Year Highest Occurred | 1998 | 1995 | 1993 | 1992 | 1992 | 1992 | 1998 | 1990 | 1995 | 1988 | 1995 | 1995 | 1998 |
| Lowest Mean Min. Temperature (F) | 27.7 | 27.4 | 33.1 | 35.8 | 40.7 | 43.9 | 49.8 | 48.1 | 43.7 | 36.4 | 29.9 | 27.9 | 27.4 |
| Year Lowest Occurred | 1977 | 1989 | 1985 | 1982 | 1977 | 1976 | 1977 | 1980 | 1972 | 1974 | 1978 | 1990 | 1989 |
| Mean Precipitation (in.) | 4.70 | 3.86 | 3.51 | 2.42 | 1.56 | 0.86 | 0.38 | 0.62 | 1.01 | 2.15 | 5.20 | 5.28 | 31.55 |
| Highest Precipitation (in.) | 9.81 | 9.27 | 6.85 | 4.80 | 6.77 | 3.22 | 1.49 | 3.08 | 4.51 | 5.02 | 15.26 | 15.96 | 15.96 |
| Year Highest Occurred | 1974 | 1983 | 1983 | 1996 | 1998 | 1992 | 2000 | 1983 | 1986 | 1979 | 1973 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.79 | 0.49 | 1.41 | 0.67 | 0.28 | 0.10 | 0.00 | 0.00 | 0.00 | 0.03 | 0.31 | 0.83 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 2000 | 1990 | 1982 | 1977 | 1998 | 1996 | 1999 | 1987 | 1976 | 1976 | 1998 |
| Heating Degree Days (F) | 731. | 561. | 533. | 415. | 265. | 105. | 28. | 26. | 114. | 314. | 557. | 743. | 4392. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 9. | 35. | 128. | 121. | 50. | 1. | 0. | 0. | 344. |