| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 36.0 | 43.4 | 53.4 | 62.6 | 72.3 | 83.6 | 89.1 | 87.3 | 78.9 | 66.5 | 48.6 | 37.2 | 63.2 |
| Highest Mean Max. Temperature (F) | 46.3 | 50.0 | 61.7 | 71.1 | 78.3 | 90.3 | 92.9 | 90.9 | 85.3 | 72.4 | 61.5 | 48.7 | 92.9 |
| Year Highest Occurred | 1981 | 1995 | 1999 | 1992 | 1994 | 1977 | 1994 | 1996 | 1990 | 1999 | 1999 | 1980 | 1994 |
| Lowest Mean Max. Temperature (F) | 25.6 | 37.0 | 48.6 | 55.1 | 64.0 | 77.9 | 84.5 | 83.4 | 71.3 | 58.3 | 40.1 | 28.0 | 25.6 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1973 | 1995 | 1995 | 1986 | 1997 | 1986 | 1984 | 2000 | 1978 | 1979 |
| Mean Temperature (F) | 24.6 | 31.0 | 39.8 | 46.9 | 55.5 | 64.4 | 70.5 | 69.2 | 60.9 | 49.6 | 35.9 | 26.0 | 47.9 |
| Highest Mean Temperature (F) | 31.5 | 37.2 | 45.3 | 53.4 | 59.7 | 69.5 | 73.0 | 73.0 | 66.0 | 53.1 | 42.8 | 36.1 | 73.0 |
| Year Highest Occurred | 1981 | 1995 | 1999 | 1992 | 1992 | 1977 | 1994 | 1983 | 1990 | 1978 | 1999 | 1980 | 1994 |
| Lowest Mean Temperature (F) | 16.4 | 24.4 | 34.1 | 39.5 | 51.0 | 59.3 | 66.2 | 65.2 | 57.5 | 44.2 | 29.5 | 17.7 | 16.4 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1973 | 1995 | 1973 | 1973 | 1976 | 1986 | 1976 | 2000 | 1972 | 1979 |
| Mean Min. Temperature (F) | 13.2 | 18.5 | 26.1 | 31.2 | 38.6 | 45.1 | 51.9 | 51.0 | 42.8 | 32.6 | 23.2 | 14.7 | 32.4 |
| Highest Mean Min. Temperature (F) | 21.1 | 25.7 | 30.1 | 35.7 | 42.2 | 50.5 | 56.3 | 56.5 | 49.0 | 37.2 | 28.3 | 23.6 | 56.5 |
| Year Highest Occurred | 1978 | 1986 | 1986 | 1992 | 1992 | 1988 | 1998 | 1983 | 1998 | 1972 | 1981 | 1980 | 1983 |
| Lowest Mean Min. Temperature (F) | 2.7 | 10.0 | 18.1 | 23.8 | 33.7 | 39.8 | 47.8 | 44.0 | 36.0 | 23.4 | 16.2 | 3.7 | 2.7 |
| Year Lowest Occurred | 1973 | 1974 | 1971 | 1973 | 1971 | 1973 | 1973 | 1975 | 1975 | 1976 | 1975 | 1972 | 1973 |
| Mean Precipitation (in.) | 1.60 | 1.21 | 1.55 | 1.66 | 1.93 | 1.22 | 1.27 | 1.19 | 1.71 | 1.86 | 1.31 | 1.42 | 17.93 |
| Highest Precipitation (in.) | 4.44 | 2.96 | 3.24 | 5.75 | 5.83 | 2.99 | 3.41 | 2.50 | 4.40 | 4.21 | 2.89 | 3.61 | 5.83 |
| Year Highest Occurred | 1996 | 1980 | 1985 | 1978 | 1995 | 1973 | 1973 | 1988 | 1982 | 1984 | 1986 | 1983 | 1995 |
| Lowest Precipitation (in.) | 0.16 | 0.10 | 0.30 | 0.08 | 0.16 | 0.05 | 0.10 | 0.26 | 0.08 | 0.10 | 0.13 | 0.17 | 0.05 |
| Year Lowest Occurred | 1973 | 2000 | 1972 | 1992 | 1974 | 1980 | 1979 | 1975 | 1979 | 2000 | 1999 | 1976 | 1980 |
| Heating Degree Days (F) | 1252. | 954. | 782. | 544. | 302. | 95. | 9. | 24. | 159. | 480. | 873. | 1211. | 6685. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 6. | 75. | 179. | 151. | 35. | 0. | 0. | 0. | 446. |