| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 40.5 | 47.1 | 54.7 | 64.2 | 73.8 | 85.0 | 92.0 | 90.0 | 81.0 | 68.5 | 50.5 | 42.5 | 65.8 |
| Highest Mean Max. Temperature (F) | 50.1 | 55.3 | 62.5 | 72.1 | 80.9 | 91.6 | 97.3 | 95.8 | 87.6 | 75.8 | 64.2 | 53.2 | 97.3 |
| Year Highest Occurred | 1989 | 1999 | 1972 | 1987 | 1994 | 1988 | 1980 | 1995 | 1998 | 1975 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 27.7 | 34.1 | 47.5 | 54.9 | 64.4 | 76.4 | 85.3 | 83.5 | 74.4 | 61.9 | 36.6 | 24.9 | 24.9 |
| Year Lowest Occurred | 1979 | 1978 | 1980 | 1984 | 1995 | 1982 | 1992 | 1992 | 1973 | 1998 | 1985 | 1983 | 1983 |
| Mean Temperature (F) | 27.8 | 33.4 | 40.5 | 49.4 | 59.4 | 69.6 | 76.2 | 74.3 | 64.6 | 52.3 | 37.3 | 29.5 | 51.2 |
| Highest Mean Temperature (F) | 34.2 | 40.6 | 48.4 | 56.0 | 64.7 | 76.0 | 78.7 | 79.8 | 70.8 | 55.5 | 46.1 | 37.0 | 79.8 |
| Year Highest Occurred | 1990 | 1992 | 1986 | 1981 | 1994 | 1988 | 1980 | 1983 | 1998 | 1974 | 1999 | 1980 | 1983 |
| Lowest Mean Temperature (F) | 15.7 | 22.3 | 34.4 | 43.6 | 54.2 | 63.8 | 71.2 | 69.6 | 60.8 | 48.8 | 27.2 | 14.8 | 14.8 |
| Year Lowest Occurred | 1979 | 1978 | 1980 | 1997 | 1995 | 1982 | 1972 | 1992 | 1973 | 1976 | 1985 | 1983 | 1983 |
| Mean Min. Temperature (F) | 15.1 | 19.7 | 26.2 | 34.5 | 45.0 | 54.1 | 60.3 | 58.5 | 48.1 | 36.1 | 24.1 | 16.4 | 36.5 |
| Highest Mean Min. Temperature (F) | 23.0 | 27.0 | 35.0 | 40.8 | 49.7 | 60.4 | 63.0 | 63.7 | 54.0 | 39.5 | 29.5 | 21.2 | 63.7 |
| Year Highest Occurred | 1983 | 1992 | 1986 | 1981 | 1991 | 1988 | 1981 | 1983 | 1998 | 1994 | 1981 | 1999 | 1983 |
| Lowest Mean Min. Temperature (F) | 3.8 | 9.0 | 20.2 | 28.9 | 40.9 | 49.9 | 54.8 | 53.5 | 42.7 | 31.7 | 17.8 | 4.7 | 3.8 |
| Year Lowest Occurred | 1979 | 1989 | 1996 | 1997 | 1983 | 1975 | 1972 | 1976 | 1974 | 1976 | 1985 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.40 | 0.48 | 1.36 | 1.89 | 3.22 | 2.87 | 2.53 | 2.15 | 1.43 | 0.97 | 0.74 | 0.42 | 18.46 |
| Highest Precipitation (in.) | 1.23 | 2.13 | 3.80 | 4.53 | 8.38 | 6.35 | 5.67 | 4.46 | 5.24 | 5.46 | 2.66 | 1.52 | 8.38 |
| Year Highest Occurred | 1973 | 1987 | 1983 | 1977 | 1988 | 1992 | 1972 | 1992 | 1996 | 1994 | 1983 | 1982 | 1988 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.31 | 0.22 | 0.39 | 0.58 | 0.46 | 0.11 | 0.00 | 0.02 | 0.00 | 0.00 |
| Year Lowest Occurred | 1986 | 1996 | 1985 | 1991 | 1994 | 1989 | 1977 | 2000 | 1976 | 1988 | 1997 | 1996 | 1986 |
| Heating Degree Days (F) | 1153. | 885. | 760. | 471. | 207. | 40. | 1. | 8. | 98. | 394. | 831. | 1103. | 5951. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 32. | 176. | 345. | 294. | 84. | 0. | 0. | 0. | 932. |