| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 33.9 | 41.6 | 53.6 | 62.9 | 71.5 | 78.7 | 86.7 | 86.1 | 76.5 | 61.7 | 43.9 | 33.5 | 60.9 |
| Highest Mean Max. Temperature (F) | 42.9 | 50.7 | 62.0 | 68.8 | 78.5 | 86.3 | 94.7 | 92.0 | 84.8 | 67.3 | 49.4 | 40.8 | 94.7 |
| Year Highest Occurred | 1994 | 1991 | 1992 | 1977 | 1992 | 1992 | 1985 | 1971 | 1998 | 1988 | 1998 | 1991 | 1985 |
| Lowest Mean Max. Temperature (F) | 24.3 | 31.6 | 46.4 | 57.7 | 65.1 | 71.6 | 79.3 | 79.5 | 68.5 | 57.0 | 30.5 | 23.3 | 23.3 |
| Year Lowest Occurred | 1979 | 1989 | 1989 | 1984 | 1984 | 1981 | 1993 | 1976 | 1986 | 1990 | 1985 | 1983 | 1983 |
| Mean Temperature (F) | 27.9 | 34.2 | 43.6 | 51.5 | 59.4 | 66.4 | 73.3 | 72.9 | 63.8 | 50.9 | 37.2 | 28.2 | 50.8 |
| Highest Mean Temperature (F) | 36.5 | 41.6 | 50.0 | 55.5 | 65.1 | 73.3 | 79.3 | 78.2 | 69.7 | 56.0 | 42.3 | 35.5 | 79.3 |
| Year Highest Occurred | 1981 | 1991 | 1992 | 1994 | 1993 | 1992 | 1985 | 1971 | 1998 | 1988 | 1999 | 1991 | 1985 |
| Lowest Mean Temperature (F) | 17.1 | 24.7 | 37.8 | 47.0 | 53.8 | 61.0 | 67.6 | 68.2 | 58.4 | 46.4 | 23.0 | 17.4 | 17.1 |
| Year Lowest Occurred | 1979 | 1985 | 1971 | 1972 | 1984 | 1981 | 1993 | 1995 | 1985 | 1984 | 1985 | 1984 | 1979 |
| Mean Min. Temperature (F) | 21.8 | 26.7 | 33.6 | 40.0 | 47.3 | 54.0 | 59.8 | 59.7 | 51.0 | 40.1 | 30.4 | 22.9 | 40.6 |
| Highest Mean Min. Temperature (F) | 33.2 | 34.0 | 38.0 | 44.2 | 51.7 | 60.3 | 64.8 | 64.4 | 55.2 | 45.4 | 35.5 | 30.2 | 64.8 |
| Year Highest Occurred | 1981 | 1992 | 1992 | 1990 | 1993 | 1992 | 1998 | 1971 | 1994 | 1979 | 1999 | 1991 | 1998 |
| Lowest Mean Min. Temperature (F) | 9.9 | 16.6 | 29.1 | 35.6 | 42.4 | 50.3 | 55.7 | 54.7 | 46.4 | 35.6 | 15.4 | 10.5 | 9.9 |
| Year Lowest Occurred | 1979 | 1985 | 1971 | 1972 | 1984 | 1976 | 1983 | 1995 | 1983 | 1984 | 1985 | 1984 | 1979 |
| Mean Precipitation (in.) | 1.14 | 0.86 | 0.68 | 0.47 | 0.61 | 0.64 | 0.30 | 0.35 | 0.43 | 0.45 | 1.15 | 1.43 | 8.51 |
| Highest Precipitation (in.) | 2.84 | 2.30 | 2.34 | 1.54 | 2.02 | 1.87 | 0.92 | 2.01 | 2.31 | 1.64 | 3.58 | 5.29 | 5.29 |
| Year Highest Occurred | 1995 | 1998 | 1983 | 1978 | 1998 | 1972 | 1993 | 1976 | 1986 | 1997 | 1983 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.01 | 0.00 | 0.02 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.00 |
| Year Lowest Occurred | 1977 | 1988 | 1994 | 1977 | 1992 | 1999 | 1988 | 2000 | 1999 | 1978 | 1993 | 1976 | 1988 |
| Heating Degree Days (F) | 1153. | 864. | 664. | 408. | 204. | 75. | 16. | 14. | 136. | 439. | 835. | 1142. | 5950. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 30. | 114. | 272. | 258. | 98. | 2. | 0. | 0. | 775. |