| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 33.7 | 39.3 | 46.2 | 54.4 | 63.3 | 70.8 | 79.2 | 80.5 | 70.6 | 57.6 | 40.7 | 33.1 | 55.8 |
| Highest Mean Max. Temperature (F) | 39.4 | 46.7 | 58.5 | 63.7 | 70.0 | 77.7 | 86.7 | 85.8 | 80.8 | 66.8 | 48.2 | 38.1 | 86.7 |
| Year Highest Occurred | 1981 | 1992 | 1992 | 1987 | 1992 | 1986 | 1985 | 1971 | 1990 | 1987 | 1999 | 1977 | 1985 |
| Lowest Mean Max. Temperature (F) | 24.8 | 32.6 | 41.0 | 46.9 | 57.5 | 65.2 | 67.8 | 74.1 | 61.2 | 50.9 | 29.2 | 26.2 | 24.8 |
| Year Lowest Occurred | 1979 | 1986 | 1971 | 1975 | 1984 | 1981 | 1993 | 1985 | 1986 | 1995 | 1985 | 1990 | 1979 |
| Mean Temperature (F) | 25.8 | 29.9 | 35.8 | 42.9 | 50.5 | 57.0 | 62.8 | 62.8 | 54.1 | 44.0 | 33.3 | 25.9 | 43.7 |
| Highest Mean Temperature (F) | 32.4 | 35.2 | 43.4 | 48.4 | 55.5 | 62.5 | 69.1 | 67.1 | 61.0 | 49.8 | 39.5 | 31.2 | 69.1 |
| Year Highest Occurred | 1981 | 1992 | 1992 | 1987 | 1993 | 1986 | 1998 | 1971 | 1990 | 1988 | 1999 | 1979 | 1998 |
| Lowest Mean Temperature (F) | 13.4 | 21.1 | 31.8 | 37.1 | 46.5 | 53.5 | 56.3 | 57.5 | 48.9 | 40.1 | 21.5 | 18.0 | 13.4 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1984 | 1981 | 1993 | 1980 | 1985 | 1985 | 1985 | 1990 | 1979 |
| Mean Min. Temperature (F) | 17.9 | 20.4 | 25.4 | 31.3 | 37.6 | 43.1 | 46.3 | 45.1 | 37.6 | 30.3 | 25.9 | 18.6 | 31.6 |
| Highest Mean Min. Temperature (F) | 25.4 | 27.0 | 30.6 | 36.4 | 41.5 | 47.3 | 53.7 | 50.2 | 42.8 | 33.8 | 30.8 | 25.7 | 53.7 |
| Year Highest Occurred | 1990 | 1978 | 1983 | 1980 | 1993 | 1986 | 1975 | 1983 | 1998 | 1988 | 1999 | 1973 | 1975 |
| Lowest Mean Min. Temperature (F) | 1.9 | 9.4 | 19.6 | 26.7 | 34.5 | 37.8 | 41.9 | 40.2 | 34.5 | 24.7 | 13.7 | 7.7 | 1.9 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1972 | 1982 | 1976 | 1984 | 1980 | 1999 | 1987 | 1985 | 1985 | 1979 |
| Mean Precipitation (in.) | 4.81 | 4.13 | 3.13 | 2.51 | 2.98 | 2.33 | 1.46 | 1.10 | 1.73 | 2.39 | 4.56 | 4.93 | 36.06 |
| Highest Precipitation (in.) | 9.01 | 8.85 | 6.14 | 6.40 | 6.09 | 4.75 | 4.56 | 3.06 | 4.60 | 6.58 | 10.70 | 11.77 | 11.77 |
| Year Highest Occurred | 1971 | 1986 | 1997 | 1996 | 1998 | 1981 | 1987 | 1975 | 1985 | 1995 | 1973 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.72 | 0.66 | 0.42 | 0.18 | 1.03 | 0.48 | 0.03 | 0.02 | 0.03 | 0.01 | 1.51 | 0.93 | 0.01 |
| Year Lowest Occurred | 1985 | 1993 | 1992 | 1977 | 1982 | 1986 | 1973 | 2000 | 1990 | 1974 | 1993 | 1985 | 1974 |
| Heating Degree Days (F) | 1215. | 985. | 904. | 666. | 452. | 250. | 127. | 129. | 338. | 654. | 952. | 1213. | 7885. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 8. | 58. | 60. | 11. | 0. | 0. | 0. | 137. |