| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 37.0 | 44.4 | 54.7 | 63.2 | 71.2 | 79.7 | 89.5 | 88.9 | 78.7 | 64.8 | 47.0 | 37.1 | 63.0 |
| Highest Mean Max. Temperature (F) | 43.3 | 52.3 | 62.8 | 75.0 | 81.7 | 88.0 | 94.3 | 96.2 | 87.4 | 75.5 | 55.1 | 43.3 | 96.2 |
| Year Highest Occurred | 1999 | 1995 | 1992 | 1987 | 1992 | 1986 | 1989 | 1971 | 1990 | 1988 | 1976 | 1977 | 1971 |
| Lowest Mean Max. Temperature (F) | 28.1 | 32.4 | 48.2 | 54.7 | 62.8 | 71.1 | 79.4 | 78.9 | 67.2 | 59.6 | 35.8 | 24.2 | 24.2 |
| Year Lowest Occurred | 1979 | 1989 | 1993 | 1975 | 1977 | 1971 | 1993 | 1976 | 1985 | 1971 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 28.1 | 34.3 | 41.9 | 48.9 | 56.9 | 64.5 | 72.7 | 71.9 | 62.0 | 50.2 | 36.8 | 28.2 | 49.7 |
| Highest Mean Temperature (F) | 33.9 | 40.5 | 48.0 | 55.7 | 63.2 | 70.0 | 77.5 | 80.8 | 67.7 | 57.7 | 42.4 | 36.3 | 80.8 |
| Year Highest Occurred | 1998 | 1995 | 1986 | 1987 | 1973 | 1974 | 1994 | 1971 | 1990 | 1988 | 1976 | 1977 | 1971 |
| Lowest Mean Temperature (F) | 16.3 | 22.0 | 36.9 | 43.2 | 51.4 | 59.2 | 63.9 | 65.9 | 54.9 | 45.2 | 25.6 | 14.3 | 14.3 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1980 | 1993 | 1976 | 1985 | 1995 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 19.1 | 24.2 | 29.1 | 34.5 | 42.6 | 49.2 | 55.9 | 54.8 | 45.2 | 35.6 | 26.6 | 19.3 | 36.3 |
| Highest Mean Min. Temperature (F) | 27.0 | 29.8 | 34.0 | 38.7 | 48.8 | 54.1 | 61.3 | 65.4 | 50.7 | 40.4 | 31.9 | 29.3 | 65.4 |
| Year Highest Occurred | 1981 | 1980 | 1983 | 1994 | 1973 | 1974 | 1975 | 1971 | 1998 | 1979 | 1972 | 1977 | 1971 |
| Lowest Mean Min. Temperature (F) | 4.6 | 11.5 | 24.7 | 30.7 | 38.5 | 45.1 | 48.3 | 48.9 | 41.9 | 27.8 | 15.3 | 4.5 | 4.5 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1982 | 1999 | 1980 | 1993 | 1993 | 1993 | 1995 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.24 | 0.97 | 0.92 | 0.81 | 1.18 | 0.93 | 0.47 | 0.51 | 0.43 | 0.53 | 1.17 | 1.30 | 10.46 |
| Highest Precipitation (in.) | 2.71 | 2.58 | 2.09 | 3.68 | 3.81 | 2.12 | 2.01 | 2.18 | 1.45 | 1.71 | 3.17 | 3.36 | 3.81 |
| Year Highest Occurred | 1995 | 1986 | 1983 | 1978 | 1998 | 1980 | 1982 | 1979 | 1986 | 2000 | 1981 | 1996 | 1998 |
| Lowest Precipitation (in.) | 0.13 | 0.03 | 0.04 | 0.00 | 0.03 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1985 | 1997 | 1994 | 1977 | 1976 | 1994 | 1999 | 2000 | 1999 | 1998 | 1986 | 1976 | 1977 |
| Heating Degree Days (F) | 1147. | 861. | 716. | 484. | 269. | 105. | 16. | 34. | 148. | 460. | 845. | 1141. | 6226. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 17. | 88. | 254. | 245. | 56. | 1. | 0. | 0. | 662. |