| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 37.4 | 46.0 | 56.8 | 65.0 | 75.5 | 87.3 | 92.8 | 90.6 | 82.1 | 69.2 | 52.6 | 40.9 | 66.4 |
| Highest Mean Max. Temperature (F) | 50.1 | 52.7 | 66.0 | 73.4 | 82.8 | 91.7 | 97.7 | 95.3 | 88.2 | 75.9 | 62.8 | 52.7 | 97.7 |
| Year Highest Occurred | 1981 | 1995 | 1999 | 2000 | 2000 | 1994 | 2000 | 2000 | 1979 | 1988 | 1999 | 1980 | 2000 |
| Lowest Mean Max. Temperature (F) | 22.9 | 33.3 | 51.7 | 57.3 | 67.6 | 79.4 | 88.3 | 87.6 | 75.9 | 60.0 | 44.9 | 29.5 | 22.9 |
| Year Lowest Occurred | 1973 | 1974 | 1979 | 1975 | 1995 | 1995 | 1995 | 1987 | 1986 | 1984 | 2000 | 1978 | 1973 |
| Mean Temperature (F) | 24.5 | 32.2 | 41.9 | 49.1 | 59.1 | 68.6 | 74.8 | 72.9 | 63.6 | 51.3 | 37.8 | 27.8 | 50.3 |
| Highest Mean Temperature (F) | 33.3 | 38.8 | 46.5 | 54.8 | 63.2 | 73.7 | 78.3 | 77.9 | 68.2 | 55.2 | 43.4 | 36.7 | 78.3 |
| Year Highest Occurred | 1981 | 2000 | 1986 | 1992 | 2000 | 1988 | 2000 | 2000 | 1998 | 1988 | 1999 | 1980 | 2000 |
| Lowest Mean Temperature (F) | 9.1 | 17.6 | 37.3 | 44.4 | 53.4 | 62.2 | 70.3 | 70.2 | 58.1 | 46.8 | 30.7 | 17.2 | 9.1 |
| Year Lowest Occurred | 1973 | 1974 | 1971 | 1975 | 1983 | 1995 | 1995 | 1995 | 1971 | 1984 | 1979 | 1978 | 1973 |
| Mean Min. Temperature (F) | 11.6 | 18.3 | 26.9 | 33.2 | 42.7 | 49.8 | 56.7 | 55.2 | 45.0 | 33.3 | 22.9 | 14.6 | 34.2 |
| Highest Mean Min. Temperature (F) | 22.5 | 26.4 | 33.2 | 39.3 | 46.6 | 56.0 | 61.4 | 60.4 | 50.8 | 40.8 | 26.8 | 21.6 | 61.4 |
| Year Highest Occurred | 1980 | 2000 | 1978 | 1990 | 1992 | 1988 | 1999 | 2000 | 1997 | 1972 | 1998 | 1999 | 1999 |
| Lowest Mean Min. Temperature (F) | -4.7 | 2.0 | 19.6 | 28.8 | 38.0 | 44.9 | 51.5 | 51.4 | 38.8 | 28.2 | 15.6 | 4.9 | -4.7 |
| Year Lowest Occurred | 1973 | 1974 | 1971 | 1995 | 1983 | 1995 | 1993 | 1974 | 1971 | 1995 | 1979 | 1978 | 1973 |
| Mean Precipitation (in.) | 0.65 | 0.57 | 0.96 | 0.77 | 1.04 | 0.51 | 0.77 | 0.73 | 0.78 | 1.01 | 0.74 | 0.65 | 9.18 |
| Highest Precipitation (in.) | 1.66 | 1.65 | 2.39 | 1.98 | 3.33 | 2.65 | 2.12 | 2.21 | 2.76 | 2.64 | 1.64 | 1.81 | 3.33 |
| Year Highest Occurred | 1993 | 1996 | 1975 | 1997 | 1993 | 1984 | 1987 | 1987 | 1997 | 1972 | 1987 | 1978 | 1993 |
| Lowest Precipitation (in.) | 0.02 | 0.00 | 0.00 | 0.04 | 0.00 | 0.00 | 0.06 | 0.00 | 0.06 | 0.01 | 0.06 | 0.00 | 0.00 |
| Year Lowest Occurred | 1972 | 1991 | 1972 | 1972 | 1974 | 1980 | 1994 | 1996 | 1987 | 1978 | 1976 | 1976 | 1991 |
| Heating Degree Days (F) | 1257. | 919. | 718. | 479. | 201. | 42. | 2. | 3. | 105. | 428. | 818. | 1155. | 6127. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 2. | 18. | 149. | 304. | 249. | 60. | 1. | 0. | 0. | 783. |