| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 37.4 | 43.7 | 53.1 | 62.1 | 72.6 | 84.5 | 91.7 | 88.9 | 78.5 | 65.5 | 49.3 | 38.9 | 63.9 |
| Highest Mean Max. Temperature (F) | 47.0 | 51.3 | 62.4 | 70.7 | 80.4 | 90.8 | 96.2 | 94.1 | 85.4 | 73.6 | 61.7 | 50.7 | 96.2 |
| Year Highest Occurred | 1981 | 1995 | 1972 | 1992 | 1974 | 1974 | 1994 | 1994 | 1979 | 1988 | 1999 | 1980 | 1994 |
| Lowest Mean Max. Temperature (F) | 30.1 | 37.0 | 45.9 | 53.4 | 63.6 | 73.2 | 86.9 | 86.1 | 71.7 | 55.5 | 41.5 | 31.5 | 30.1 |
| Year Lowest Occurred | 1979 | 1974 | 1973 | 1975 | 1995 | 1995 | 1993 | 1972 | 1986 | 1984 | 1972 | 1974 | 1979 |
| Mean Temperature (F) | 25.6 | 31.3 | 39.8 | 47.1 | 56.0 | 65.8 | 72.7 | 70.7 | 61.3 | 49.8 | 36.6 | 26.9 | 48.6 |
| Highest Mean Temperature (F) | 33.5 | 38.8 | 46.8 | 53.7 | 60.8 | 70.5 | 75.8 | 75.9 | 65.8 | 56.5 | 41.7 | 36.9 | 75.9 |
| Year Highest Occurred | 1981 | 1995 | 1986 | 1992 | 1974 | 1994 | 1994 | 1994 | 1990 | 1988 | 1995 | 1980 | 1994 |
| Lowest Mean Temperature (F) | 17.9 | 23.6 | 35.1 | 40.5 | 49.9 | 58.1 | 68.7 | 68.1 | 56.7 | 42.5 | 30.3 | 17.3 | 17.3 |
| Year Lowest Occurred | 1989 | 1974 | 1977 | 1975 | 1995 | 1995 | 1995 | 1975 | 1986 | 1984 | 1979 | 1990 | 1990 |
| Mean Min. Temperature (F) | 13.7 | 18.8 | 26.4 | 32.0 | 39.4 | 47.0 | 53.7 | 52.4 | 44.0 | 34.0 | 23.8 | 14.9 | 33.3 |
| Highest Mean Min. Temperature (F) | 23.2 | 26.2 | 32.8 | 37.0 | 43.0 | 51.2 | 57.1 | 57.7 | 49.0 | 39.5 | 27.6 | 24.4 | 57.7 |
| Year Highest Occurred | 2000 | 1995 | 1986 | 1990 | 1994 | 1981 | 1981 | 1994 | 1990 | 1988 | 1977 | 1995 | 1994 |
| Lowest Mean Min. Temperature (F) | 3.5 | 10.1 | 20.2 | 27.6 | 36.1 | 40.6 | 48.1 | 49.1 | 39.3 | 28.9 | 17.2 | 2.0 | 2.0 |
| Year Lowest Occurred | 1973 | 1974 | 1976 | 1975 | 1995 | 1998 | 1997 | 1996 | 1999 | 1995 | 1979 | 1990 | 1990 |
| Mean Precipitation (in.) | 1.01 | 1.08 | 1.39 | 1.14 | 1.29 | 0.67 | 0.76 | 0.85 | 1.19 | 1.34 | 1.10 | 0.88 | 12.70 |
| Highest Precipitation (in.) | 2.18 | 3.82 | 2.52 | 2.75 | 4.25 | 2.63 | 2.06 | 1.93 | 4.52 | 3.18 | 3.07 | 2.60 | 4.52 |
| Year Highest Occurred | 1993 | 1980 | 1983 | 1999 | 1995 | 1984 | 1987 | 1986 | 1982 | 1984 | 1983 | 1983 | 1982 |
| Lowest Precipitation (in.) | 0.16 | 0.17 | 0.03 | 0.06 | 0.06 | 0.00 | 0.04 | 0.01 | 0.07 | 0.00 | 0.11 | 0.00 | 0.00 |
| Year Lowest Occurred | 1972 | 1972 | 1997 | 1977 | 1974 | 1978 | 2000 | 1985 | 1974 | 1976 | 1976 | 1976 | 1978 |
| Heating Degree Days (F) | 1222. | 945. | 784. | 540. | 294. | 89. | 6. | 7. | 148. | 476. | 854. | 1182. | 6547. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 15. | 112. | 244. | 182. | 36. | 2. | 0. | 0. | 592. |