| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 41.6 | 45.4 | 50.9 | 57.5 | 67.9 | 78.4 | 83.3 | 80.9 | 74.3 | 63.3 | 49.0 | 41.9 | 61.2 |
| Highest Mean Max. Temperature (F) | 50.9 | 51.9 | 58.0 | 65.4 | 75.5 | 84.5 | 87.0 | 84.7 | 80.0 | 69.2 | 62.5 | 50.9 | 87.0 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1981 | 1996 | 1994 | 1980 | 1995 | 1998 | 1999 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 32.1 | 37.7 | 45.0 | 47.9 | 61.0 | 74.0 | 80.5 | 78.3 | 69.6 | 51.9 | 39.9 | 35.1 | 32.1 |
| Year Lowest Occurred | 1979 | 1989 | 1973 | 1973 | 1995 | 1983 | 1973 | 1993 | 1985 | 1984 | 1972 | 1978 | 1979 |
| Mean Temperature (F) | 26.8 | 30.2 | 36.2 | 42.3 | 51.8 | 60.8 | 65.9 | 64.1 | 56.9 | 45.8 | 34.5 | 27.4 | 45.2 |
| Highest Mean Temperature (F) | 34.0 | 36.3 | 41.6 | 48.4 | 57.3 | 64.7 | 68.8 | 67.2 | 61.4 | 49.4 | 40.3 | 36.1 | 68.8 |
| Year Highest Occurred | 1986 | 2000 | 1989 | 1981 | 1996 | 1981 | 1980 | 1995 | 1998 | 1992 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 18.1 | 24.4 | 31.6 | 35.2 | 47.3 | 57.0 | 63.0 | 61.3 | 53.5 | 40.1 | 27.2 | 21.8 | 18.1 |
| Year Lowest Occurred | 1979 | 1989 | 1987 | 1973 | 1995 | 1995 | 1995 | 1974 | 1985 | 1984 | 1972 | 1978 | 1979 |
| Mean Min. Temperature (F) | 11.9 | 14.9 | 21.4 | 27.1 | 35.6 | 43.1 | 48.5 | 47.3 | 39.5 | 28.2 | 20.0 | 12.8 | 29.2 |
| Highest Mean Min. Temperature (F) | 18.6 | 20.8 | 26.1 | 31.4 | 39.1 | 47.0 | 51.8 | 51.1 | 42.7 | 33.1 | 25.9 | 21.2 | 51.8 |
| Year Highest Occurred | 1999 | 2000 | 1989 | 1981 | 1996 | 1981 | 1981 | 1982 | 1998 | 1972 | 1985 | 1980 | 1981 |
| Lowest Mean Min. Temperature (F) | 4.1 | 9.2 | 16.5 | 22.6 | 32.6 | 39.5 | 43.7 | 44.3 | 36.9 | 22.3 | 13.1 | 7.7 | 4.1 |
| Year Lowest Occurred | 1979 | 1974 | 1977 | 1983 | 1990 | 1995 | 1995 | 1974 | 1988 | 1999 | 2000 | 1989 | 1979 |
| Mean Precipitation (in.) | 0.14 | 0.22 | 0.61 | 0.71 | 1.04 | 0.80 | 1.26 | 1.55 | 0.86 | 0.85 | 0.33 | 0.28 | 8.65 |
| Highest Precipitation (in.) | 0.83 | 1.95 | 1.87 | 2.64 | 2.53 | 1.84 | 2.51 | 4.26 | 2.22 | 4.13 | 0.95 | 0.93 | 4.26 |
| Year Highest Occurred | 1988 | 1987 | 1992 | 1999 | 1995 | 1987 | 1984 | 1984 | 1988 | 1984 | 1986 | 1978 | 1984 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.02 | 0.28 | 0.15 | 0.26 | 0.07 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 2000 | 2000 | 1994 | 1993 | 1998 | 1985 | 1987 | 1985 | 1987 | 1995 | 1984 | 1994 | 2000 |
| Heating Degree Days (F) | 1185. | 976. | 895. | 680. | 411. | 146. | 34. | 63. | 248. | 597. | 915. | 1167. | 7317. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 18. | 62. | 35. | 4. | 0. | 0. | 0. | 119. |