| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 36.7 | 45.7 | 56.7 | 65.3 | 73.0 | 81.7 | 89.2 | 88.0 | 78.3 | 66.1 | 48.6 | 37.4 | 63.9 |
| Highest Mean Max. Temperature (F) | 44.9 | 53.2 | 64.9 | 74.5 | 80.7 | 88.6 | 94.3 | 93.5 | 84.6 | 74.9 | 56.8 | 44.1 | 94.3 |
| Year Highest Occurred | 1998 | 1995 | 1992 | 1987 | 1992 | 1986 | 1985 | 1971 | 1990 | 1988 | 1999 | 1979 | 1985 |
| Lowest Mean Max. Temperature (F) | 25.6 | 32.2 | 49.6 | 57.3 | 67.6 | 75.0 | 78.4 | 82.0 | 69.4 | 60.6 | 37.1 | 20.3 | 20.3 |
| Year Lowest Occurred | 1979 | 1989 | 1993 | 1975 | 1991 | 1998 | 1993 | 1993 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 29.4 | 36.5 | 44.6 | 51.0 | 58.3 | 65.9 | 71.8 | 70.5 | 61.6 | 51.2 | 38.8 | 29.7 | 50.8 |
| Highest Mean Temperature (F) | 37.0 | 41.9 | 49.4 | 55.9 | 63.6 | 70.7 | 76.4 | 75.4 | 66.7 | 57.0 | 44.4 | 37.2 | 76.4 |
| Year Highest Occurred | 1998 | 1986 | 1986 | 1977 | 1992 | 1986 | 1985 | 1971 | 1990 | 1988 | 1999 | 1973 | 1985 |
| Lowest Mean Temperature (F) | 17.0 | 23.2 | 39.1 | 46.2 | 53.4 | 61.4 | 61.5 | 65.6 | 55.2 | 48.2 | 28.1 | 11.3 | 11.3 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1996 | 1998 | 1993 | 1993 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 22.1 | 27.2 | 32.5 | 36.6 | 43.6 | 50.0 | 54.3 | 52.9 | 44.8 | 36.3 | 28.9 | 21.9 | 37.6 |
| Highest Mean Min. Temperature (F) | 31.0 | 33.5 | 37.5 | 40.4 | 47.9 | 55.2 | 60.1 | 57.6 | 48.8 | 40.8 | 35.0 | 31.3 | 60.1 |
| Year Highest Occurred | 1978 | 1986 | 1983 | 1980 | 1993 | 1977 | 1975 | 1984 | 1990 | 1979 | 1983 | 1973 | 1975 |
| Lowest Mean Min. Temperature (F) | 8.4 | 14.1 | 27.2 | 32.9 | 38.0 | 46.4 | 44.6 | 48.7 | 40.9 | 33.1 | 19.1 | 2.3 | 2.3 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1999 | 1996 | 1994 | 1993 | 1995 | 1999 | 1987 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 0.99 | 0.76 | 1.15 | 1.06 | 1.06 | 0.74 | 0.28 | 0.26 | 0.55 | 0.60 | 1.35 | 1.14 | 9.94 |
| Highest Precipitation (in.) | 2.07 | 3.13 | 2.27 | 2.23 | 3.61 | 1.97 | 1.65 | 2.20 | 1.84 | 2.00 | 3.73 | 3.16 | 3.73 |
| Year Highest Occurred | 1978 | 1986 | 1981 | 1978 | 1980 | 1971 | 1975 | 1976 | 1986 | 1982 | 1988 | 1983 | 1988 |
| Lowest Precipitation (in.) | 0.09 | 0.15 | 0.00 | 0.14 | 0.00 | 0.11 | 0.00 | 0.00 | 0.00 | 0.00 | 0.12 | 0.03 | 0.00 |
| Year Lowest Occurred | 1993 | 1977 | 1994 | 1977 | 1992 | 1986 | 1996 | 1995 | 1999 | 1993 | 1976 | 1976 | 1994 |
| Heating Degree Days (F) | 1104. | 799. | 632. | 423. | 223. | 72. | 21. | 21. | 148. | 427. | 787. | 1095. | 5752. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 16. | 98. | 229. | 190. | 45. | 0. | 0. | 0. | 579. |