| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 38.2 | 46.2 | 56.8 | 66.1 | 75.4 | 84.7 | 94.5 | 93.2 | 82.2 | 69.1 | 50.8 | 39.0 | 66.4 |
| Highest Mean Max. Temperature (F) | 43.8 | 55.5 | 63.6 | 74.7 | 84.1 | 92.9 | 99.2 | 98.8 | 89.8 | 77.3 | 58.6 | 45.6 | 99.2 |
| Year Highest Occurred | 1994 | 1995 | 1992 | 1977 | 1992 | 1974 | 1988 | 1971 | 1994 | 1988 | 1999 | 1977 | 1988 |
| Lowest Mean Max. Temperature (F) | 26.6 | 34.0 | 51.6 | 57.0 | 67.5 | 78.3 | 83.2 | 85.5 | 72.0 | 63.0 | 43.4 | 29.1 | 26.6 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1993 | 1993 | 1976 | 1986 | 1984 | 1994 | 1985 | 1979 |
| Mean Temperature (F) | 30.1 | 36.1 | 43.9 | 50.8 | 59.1 | 67.1 | 75.1 | 73.7 | 63.5 | 52.0 | 39.1 | 30.2 | 51.7 |
| Highest Mean Temperature (F) | 35.9 | 42.6 | 48.9 | 56.5 | 64.5 | 73.3 | 78.3 | 78.6 | 68.8 | 58.7 | 45.3 | 38.7 | 78.6 |
| Year Highest Occurred | 1994 | 1995 | 1986 | 1990 | 1992 | 1977 | 1975 | 1981 | 1994 | 1988 | 1999 | 1977 | 1981 |
| Lowest Mean Temperature (F) | 16.8 | 23.3 | 38.9 | 44.7 | 54.5 | 61.7 | 65.7 | 67.9 | 57.0 | 48.6 | 30.8 | 17.4 | 16.8 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1977 | 1993 | 1993 | 1985 | 1985 | 1984 | 1985 | 1985 | 1979 |
| Mean Min. Temperature (F) | 21.9 | 26.0 | 30.9 | 35.4 | 42.7 | 49.5 | 55.6 | 54.2 | 44.8 | 34.8 | 27.4 | 21.3 | 37.0 |
| Highest Mean Min. Temperature (F) | 29.2 | 32.7 | 36.0 | 39.6 | 46.9 | 55.1 | 59.6 | 58.8 | 50.0 | 40.8 | 32.7 | 31.9 | 59.6 |
| Year Highest Occurred | 1981 | 1978 | 1986 | 1992 | 1987 | 1986 | 1975 | 1986 | 1990 | 1979 | 1981 | 1977 | 1975 |
| Lowest Mean Min. Temperature (F) | 7.0 | 12.6 | 25.8 | 31.9 | 38.8 | 45.1 | 48.1 | 47.8 | 38.2 | 29.9 | 16.0 | 5.8 | 5.8 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1999 | 1999 | 1993 | 1993 | 1993 | 1985 | 1995 | 1993 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.09 | 0.93 | 0.99 | 0.88 | 1.12 | 0.91 | 0.44 | 0.41 | 0.46 | 0.62 | 1.24 | 1.36 | 10.45 |
| Highest Precipitation (in.) | 2.13 | 4.35 | 3.14 | 3.66 | 3.15 | 2.29 | 1.85 | 2.09 | 1.48 | 1.98 | 3.14 | 3.97 | 4.35 |
| Year Highest Occurred | 1995 | 1986 | 1983 | 1978 | 1980 | 1992 | 1974 | 1979 | 1977 | 1982 | 1983 | 1981 | 1986 |
| Lowest Precipitation (in.) | 0.15 | 0.10 | 0.24 | 0.00 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.28 | 0.00 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 1992 | 1977 | 1974 | 1985 | 1990 | 1995 | 1999 | 1978 | 1989 | 1989 | 1977 |
| Heating Degree Days (F) | 1083. | 810. | 656. | 429. | 206. | 68. | 7. | 15. | 123. | 406. | 776. | 1080. | 5659. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 2. | 23. | 130. | 320. | 284. | 78. | 1. | 0. | 0. | 838. |