| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 48.8 | 54.0 | 62.4 | 70.9 | 79.4 | 87.7 | 90.1 | 87.6 | 81.3 | 71.4 | 58.4 | 49.5 | 70.1 |
| Highest Mean Max. Temperature (F) | 56.9 | 64.2 | 69.1 | 77.4 | 88.7 | 97.5 | 97.2 | 94.7 | 90.6 | 76.5 | 69.4 | 56.3 | 97.5 |
| Year Highest Occurred | 2000 | 2000 | 1972 | 1978 | 1996 | 1990 | 1998 | 1983 | 1998 | 1992 | 1999 | 1994 | 1990 |
| Lowest Mean Max. Temperature (F) | 37.0 | 40.4 | 57.2 | 62.3 | 75.0 | 81.1 | 81.8 | 80.4 | 71.3 | 64.4 | 49.8 | 36.8 | 36.8 |
| Year Lowest Occurred | 1979 | 1978 | 1987 | 1973 | 1980 | 1989 | 1976 | 1971 | 1974 | 1976 | 1972 | 1983 | 1983 |
| Mean Temperature (F) | 34.6 | 38.9 | 45.8 | 54.1 | 63.6 | 72.6 | 75.9 | 74.0 | 67.1 | 56.3 | 43.6 | 35.6 | 55.2 |
| Highest Mean Temperature (F) | 40.6 | 45.6 | 51.0 | 58.7 | 71.1 | 79.1 | 80.6 | 77.8 | 73.5 | 60.2 | 50.4 | 41.0 | 80.6 |
| Year Highest Occurred | 1986 | 2000 | 1974 | 1986 | 1996 | 1990 | 1998 | 1983 | 1998 | 1998 | 1999 | 1980 | 1998 |
| Lowest Mean Temperature (F) | 26.0 | 30.2 | 42.3 | 46.8 | 59.5 | 68.4 | 70.7 | 69.3 | 60.0 | 49.3 | 36.9 | 25.5 | 25.5 |
| Year Lowest Occurred | 1979 | 1978 | 1987 | 1973 | 1976 | 1989 | 1976 | 1971 | 1974 | 1976 | 1972 | 1983 | 1983 |
| Mean Min. Temperature (F) | 20.4 | 23.7 | 29.1 | 37.3 | 47.7 | 57.5 | 61.7 | 60.3 | 52.9 | 41.1 | 28.8 | 21.7 | 40.2 |
| Highest Mean Min. Temperature (F) | 25.3 | 29.3 | 33.0 | 42.0 | 53.4 | 60.7 | 64.2 | 63.1 | 56.4 | 46.6 | 35.0 | 27.0 | 64.2 |
| Year Highest Occurred | 1998 | 1987 | 1974 | 1986 | 1996 | 1994 | 1993 | 1977 | 1990 | 1998 | 1998 | 1980 | 1993 |
| Lowest Mean Min. Temperature (F) | 15.0 | 20.0 | 23.9 | 31.3 | 41.8 | 53.6 | 59.1 | 57.5 | 48.0 | 34.3 | 23.9 | 14.2 | 14.2 |
| Year Lowest Occurred | 1979 | 1978 | 1971 | 1973 | 1983 | 1983 | 1971 | 1972 | 1975 | 1976 | 1976 | 1983 | 1983 |
| Mean Precipitation (in.) | 0.50 | 0.51 | 0.81 | 0.99 | 2.76 | 3.12 | 2.40 | 3.06 | 2.57 | 1.58 | 0.71 | 0.70 | 19.71 |
| Highest Precipitation (in.) | 1.72 | 2.71 | 3.12 | 3.79 | 9.92 | 7.10 | 5.99 | 8.20 | 5.84 | 7.50 | 1.96 | 2.61 | 9.92 |
| Year Highest Occurred | 1983 | 1998 | 1973 | 1997 | 1987 | 1992 | 1993 | 1999 | 1986 | 1998 | 1978 | 1991 | 1987 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.04 | 0.25 | 0.28 | 0.15 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1996 | 2000 | 1996 | 1996 | 1998 | 1990 | 1983 | 2000 | 2000 | 1992 | 1999 | 1976 | 1996 |
| Heating Degree Days (F) | 943. | 733. | 596. | 338. | 121. | 14. | 1. | 3. | 64. | 277. | 642. | 912. | 4644. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 11. | 76. | 242. | 339. | 280. | 127. | 6. | 0. | 0. | 1081. |