| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 36.2 | 41.7 | 50.3 | 59.8 | 68.2 | 78.3 | 81.9 | 79.4 | 74.1 | 63.5 | 48.3 | 38.3 | 60.0 |
| Highest Mean Max. Temperature (F) | 47.7 | 52.0 | 57.9 | 67.6 | 76.6 | 83.4 | 88.1 | 83.5 | 80.3 | 69.6 | 60.4 | 50.6 | 88.1 |
| Year Highest Occurred | 1986 | 1981 | 1989 | 2000 | 2000 | 1990 | 1980 | 2000 | 1979 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 20.5 | 31.9 | 43.3 | 52.3 | 63.0 | 72.4 | 77.8 | 75.7 | 69.6 | 54.9 | 39.0 | 23.8 | 20.5 |
| Year Lowest Occurred | 1992 | 1979 | 1979 | 1973 | 1995 | 1983 | 1986 | 1987 | 1986 | 1984 | 1972 | 1991 | 1992 |
| Mean Temperature (F) | 21.7 | 27.4 | 35.8 | 43.4 | 51.5 | 60.6 | 65.2 | 63.6 | 57.8 | 47.0 | 33.6 | 23.5 | 44.3 |
| Highest Mean Temperature (F) | 30.8 | 36.5 | 41.3 | 48.5 | 57.3 | 64.6 | 69.0 | 66.6 | 61.4 | 50.6 | 39.8 | 34.8 | 69.0 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1981 | 1996 | 1990 | 1980 | 2000 | 2000 | 1979 | 1973 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 9.3 | 17.2 | 29.7 | 37.4 | 48.0 | 56.2 | 62.5 | 61.3 | 54.8 | 42.9 | 25.2 | 10.7 | 9.3 |
| Year Lowest Occurred | 1984 | 1979 | 1984 | 1975 | 1995 | 1983 | 1986 | 1979 | 1993 | 1984 | 1992 | 1991 | 1984 |
| Mean Min. Temperature (F) | 7.2 | 13.1 | 21.3 | 26.9 | 34.8 | 42.9 | 48.5 | 47.8 | 41.4 | 30.4 | 18.8 | 8.7 | 28.5 |
| Highest Mean Min. Temperature (F) | 14.8 | 23.0 | 26.3 | 31.5 | 38.3 | 46.3 | 52.6 | 52.5 | 44.7 | 37.5 | 26.9 | 19.0 | 52.6 |
| Year Highest Occurred | 1999 | 1976 | 1974 | 1990 | 1996 | 2000 | 1972 | 1977 | 1977 | 1972 | 1978 | 1980 | 1972 |
| Lowest Mean Min. Temperature (F) | -7.2 | 0.9 | 14.9 | 22.3 | 30.9 | 39.2 | 45.1 | 45.1 | 37.3 | 24.9 | 10.8 | -2.4 | -7.2 |
| Year Lowest Occurred | 1984 | 1984 | 1984 | 1975 | 1975 | 1974 | 1974 | 1973 | 1993 | 1995 | 1992 | 1991 | 1984 |
| Mean Precipitation (in.) | 0.69 | 0.62 | 1.03 | 0.87 | 1.24 | 1.01 | 1.75 | 2.25 | 1.54 | 1.21 | 1.05 | 0.77 | 14.03 |
| Highest Precipitation (in.) | 2.13 | 2.00 | 2.66 | 3.62 | 3.60 | 2.87 | 3.61 | 6.71 | 3.34 | 3.84 | 2.86 | 1.83 | 6.71 |
| Year Highest Occurred | 1979 | 1982 | 1990 | 1999 | 1995 | 1986 | 1986 | 1993 | 1986 | 1998 | 1991 | 1990 | 1993 |
| Lowest Precipitation (in.) | 0.04 | 0.08 | 0.00 | 0.00 | 0.00 | 0.00 | 0.43 | 0.45 | 0.18 | 0.00 | 0.00 | 0.02 | 0.00 |
| Year Lowest Occurred | 1998 | 1981 | 1971 | 1991 | 1998 | 1998 | 1980 | 1973 | 2000 | 1995 | 1989 | 1977 | 1971 |
| Heating Degree Days (F) | 1343. | 1053. | 907. | 650. | 419. | 158. | 50. | 73. | 222. | 560. | 943. | 1286. | 7664. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 1. | 26. | 56. | 28. | 4. | 0. | 0. | 0. | 115. |