| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 37.1 | 42.9 | 51.2 | 59.3 | 68.6 | 79.9 | 89.6 | 88.1 | 78.2 | 65.0 | 48.1 | 38.2 | 62.2 |
| Highest Mean Max. Temperature (F) | 49.8 | 53.6 | 58.8 | 70.0 | 76.8 | 86.9 | 95.6 | 94.1 | 87.9 | 75.5 | 58.3 | 48.2 | 95.6 |
| Year Highest Occurred | 1981 | 1995 | 1986 | 1987 | 1992 | 1977 | 1981 | 1981 | 1979 | 1988 | 1999 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 26.0 | 29.7 | 44.8 | 47.0 | 60.9 | 71.1 | 79.3 | 82.1 | 70.4 | 56.9 | 36.7 | 29.2 | 26.0 |
| Year Lowest Occurred | 1989 | 1993 | 1975 | 1975 | 1971 | 1995 | 1993 | 1976 | 1986 | 1984 | 1994 | 1992 | 1989 |
| Mean Temperature (F) | 25.6 | 31.3 | 38.6 | 44.6 | 52.7 | 61.7 | 69.1 | 67.6 | 58.2 | 46.7 | 34.5 | 26.0 | 46.4 |
| Highest Mean Temperature (F) | 34.5 | 39.0 | 44.9 | 50.0 | 56.5 | 69.3 | 75.9 | 72.4 | 66.1 | 54.6 | 40.2 | 34.7 | 75.9 |
| Year Highest Occurred | 1981 | 1980 | 1978 | 1990 | 1992 | 1977 | 1985 | 1981 | 1979 | 1979 | 1981 | 1977 | 1985 |
| Lowest Mean Temperature (F) | 11.6 | 20.5 | 33.5 | 37.6 | 48.1 | 56.0 | 59.7 | 62.0 | 53.0 | 43.1 | 25.4 | 14.5 | 11.6 |
| Year Lowest Occurred | 1989 | 1993 | 1976 | 1975 | 1991 | 1993 | 1993 | 1993 | 1986 | 1998 | 1994 | 1990 | 1989 |
| Mean Min. Temperature (F) | 14.1 | 19.7 | 25.9 | 29.9 | 36.8 | 43.5 | 48.6 | 47.0 | 38.1 | 28.3 | 20.9 | 13.8 | 30.6 |
| Highest Mean Min. Temperature (F) | 24.6 | 30.0 | 33.5 | 33.7 | 40.0 | 51.6 | 57.1 | 56.7 | 45.3 | 38.6 | 27.5 | 25.0 | 57.1 |
| Year Highest Occurred | 1995 | 1980 | 1983 | 1990 | 1987 | 1977 | 1985 | 1983 | 1976 | 1979 | 1973 | 1977 | 1985 |
| Lowest Mean Min. Temperature (F) | -2.8 | 9.4 | 19.4 | 26.2 | 32.7 | 38.5 | 40.0 | 41.8 | 31.7 | 20.6 | 8.4 | -0.4 | -2.8 |
| Year Lowest Occurred | 1989 | 1989 | 1976 | 1991 | 1990 | 1994 | 1993 | 1996 | 1996 | 1995 | 1993 | 1990 | 1989 |
| Mean Precipitation (in.) | 1.14 | 0.88 | 0.98 | 0.81 | 1.08 | 0.67 | 0.30 | 0.36 | 0.68 | 0.71 | 1.05 | 0.93 | 9.59 |
| Highest Precipitation (in.) | 3.28 | 2.32 | 2.39 | 1.98 | 4.09 | 1.69 | 1.08 | 1.37 | 3.22 | 1.92 | 2.76 | 4.21 | 4.21 |
| Year Highest Occurred | 1996 | 2000 | 1989 | 1978 | 1971 | 1997 | 1997 | 1997 | 1978 | 1972 | 1983 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.17 | 0.06 | 0.04 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.07 | 0.00 | 0.00 |
| Year Lowest Occurred | 1992 | 1988 | 1988 | 1992 | 1974 | 1994 | 1999 | 1998 | 1974 | 1995 | 1993 | 1976 | 1974 |
| Heating Degree Days (F) | 1222. | 943. | 820. | 612. | 383. | 161. | 53. | 57. | 237. | 569. | 916. | 1208. | 7181. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 2. | 62. | 181. | 135. | 31. | 1. | 0. | 0. | 412. |