| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 38.9 | 44.0 | 51.0 | 58.9 | 67.3 | 76.9 | 85.7 | 85.5 | 74.8 | 63.3 | 48.0 | 39.4 | 61.1 |
| Highest Mean Max. Temperature (F) | 46.3 | 51.4 | 59.7 | 69.4 | 76.5 | 84.7 | 90.6 | 90.7 | 81.7 | 73.4 | 56.9 | 45.4 | 90.7 |
| Year Highest Occurred | 1998 | 1992 | 1992 | 1987 | 1992 | 1986 | 1985 | 1971 | 1990 | 1988 | 1999 | 1979 | 1971 |
| Lowest Mean Max. Temperature (F) | 27.9 | 34.6 | 43.7 | 48.1 | 59.5 | 71.0 | 75.9 | 77.6 | 65.9 | 56.3 | 39.2 | 29.8 | 27.9 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1993 | 1993 | 1976 | 1985 | 1984 | 1994 | 1985 | 1979 |
| Mean Temperature (F) | 29.3 | 33.7 | 39.4 | 45.6 | 53.3 | 61.2 | 68.8 | 68.2 | 58.2 | 47.8 | 36.5 | 29.2 | 47.6 |
| Highest Mean Temperature (F) | 37.1 | 39.5 | 45.2 | 52.4 | 60.0 | 67.9 | 74.0 | 72.8 | 64.5 | 55.7 | 44.0 | 36.8 | 74.0 |
| Year Highest Occurred | 1998 | 1992 | 1986 | 1987 | 1992 | 1986 | 1985 | 1971 | 1990 | 1988 | 1999 | 1996 | 1985 |
| Lowest Mean Temperature (F) | 17.0 | 24.9 | 32.8 | 37.9 | 47.3 | 56.7 | 60.6 | 61.5 | 51.2 | 42.4 | 28.7 | 18.0 | 17.0 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1980 | 1993 | 1976 | 1985 | 1984 | 1985 | 1990 | 1979 |
| Mean Min. Temperature (F) | 19.6 | 23.4 | 27.7 | 32.3 | 39.2 | 45.5 | 51.8 | 50.9 | 41.5 | 32.3 | 24.9 | 18.9 | 34.0 |
| Highest Mean Min. Temperature (F) | 27.8 | 29.6 | 32.1 | 36.7 | 44.3 | 51.1 | 57.4 | 54.9 | 49.9 | 37.9 | 31.8 | 28.8 | 57.4 |
| Year Highest Occurred | 1998 | 2000 | 1986 | 2000 | 1993 | 1986 | 1985 | 1971 | 1998 | 1988 | 1995 | 1996 | 1985 |
| Lowest Mean Min. Temperature (F) | 6.0 | 15.2 | 21.8 | 26.3 | 34.5 | 40.9 | 45.3 | 45.4 | 35.9 | 28.5 | 16.9 | 5.7 | 5.7 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1982 | 1974 | 1980 | 1993 | 1976 | 1971 | 1984 | 1993 | 1990 | 1990 |
| Mean Precipitation (in.) | 1.18 | 0.92 | 1.11 | 0.94 | 1.30 | 0.99 | 0.38 | 0.46 | 0.61 | 0.77 | 1.09 | 1.15 | 10.90 |
| Highest Precipitation (in.) | 2.96 | 2.45 | 2.31 | 2.98 | 5.02 | 2.44 | 1.14 | 2.32 | 2.46 | 3.00 | 2.79 | 4.23 | 5.02 |
| Year Highest Occurred | 1982 | 1986 | 1993 | 1978 | 1998 | 1971 | 1995 | 1979 | 1980 | 1975 | 1988 | 1996 | 1998 |
| Lowest Precipitation (in.) | 0.00 | 0.17 | 0.21 | 0.24 | 0.16 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.13 | 0.04 | 0.00 |
| Year Lowest Occurred | 1985 | 1992 | 1992 | 1977 | 1974 | 1979 | 1972 | 1992 | 1999 | 1998 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 1109. | 878. | 794. | 582. | 371. | 167. | 49. | 54. | 240. | 535. | 858. | 1112. | 6749. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 6. | 52. | 165. | 153. | 34. | 0. | 0. | 0. | 410. |