| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 46.3 | 52.3 | 59.5 | 66.8 | 76.2 | 86.5 | 88.6 | 85.7 | 79.5 | 69.6 | 56.2 | 47.0 | 67.9 |
| Highest Mean Max. Temperature (F) | 57.1 | 59.9 | 66.6 | 75.3 | 84.1 | 93.9 | 93.9 | 89.7 | 84.9 | 75.4 | 65.8 | 55.5 | 93.9 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1989 | 1996 | 1990 | 1980 | 1994 | 1983 | 1988 | 1999 | 1980 | 1990 |
| Lowest Mean Max. Temperature (F) | 37.5 | 45.2 | 52.8 | 58.9 | 72.7 | 81.4 | 84.3 | 82.3 | 74.9 | 61.3 | 46.4 | 37.4 | 37.4 |
| Year Lowest Occurred | 1979 | 1987 | 1973 | 1973 | 1980 | 1997 | 1996 | 1971 | 1996 | 1984 | 2000 | 1997 | 1997 |
| Mean Temperature (F) | 29.8 | 34.6 | 40.6 | 47.2 | 56.8 | 66.0 | 70.2 | 68.4 | 61.2 | 50.2 | 38.2 | 29.7 | 49.4 |
| Highest Mean Temperature (F) | 35.7 | 40.4 | 44.8 | 52.7 | 62.5 | 71.2 | 73.3 | 72.0 | 65.7 | 53.5 | 41.8 | 36.4 | 73.3 |
| Year Highest Occurred | 1986 | 1995 | 1989 | 1989 | 1996 | 1990 | 1993 | 1994 | 1983 | 1992 | 1998 | 1977 | 1993 |
| Lowest Mean Temperature (F) | 24.3 | 30.4 | 35.8 | 40.3 | 53.0 | 62.5 | 68.2 | 65.4 | 58.4 | 45.6 | 33.1 | 22.7 | 22.7 |
| Year Lowest Occurred | 1979 | 1974 | 1977 | 1973 | 1975 | 1973 | 1975 | 1971 | 1975 | 1976 | 1976 | 1997 | 1997 |
| Mean Min. Temperature (F) | 13.2 | 16.9 | 21.7 | 27.5 | 37.3 | 45.4 | 51.8 | 51.1 | 42.9 | 30.8 | 20.2 | 12.4 | 30.9 |
| Highest Mean Min. Temperature (F) | 20.7 | 21.0 | 25.5 | 32.8 | 41.3 | 51.6 | 55.9 | 55.0 | 48.0 | 35.4 | 26.6 | 19.4 | 55.9 |
| Year Highest Occurred | 1993 | 1986 | 1995 | 2000 | 1984 | 2000 | 1998 | 1977 | 1997 | 2000 | 1978 | 1977 | 1998 |
| Lowest Mean Min. Temperature (F) | 8.9 | 10.1 | 17.1 | 21.7 | 32.4 | 41.5 | 48.4 | 47.4 | 38.0 | 24.5 | 11.6 | 5.5 | 5.5 |
| Year Lowest Occurred | 1984 | 1974 | 1977 | 1973 | 1975 | 1973 | 1987 | 1976 | 1973 | 1995 | 1976 | 1976 | 1976 |
| Mean Precipitation (in.) | 0.70 | 0.51 | 0.71 | 0.57 | 1.22 | 1.18 | 2.30 | 2.43 | 1.88 | 1.54 | 0.87 | 0.95 | 14.86 |
| Highest Precipitation (in.) | 2.63 | 1.63 | 2.90 | 1.76 | 4.55 | 6.95 | 4.89 | 6.07 | 4.54 | 5.68 | 3.76 | 3.05 | 6.95 |
| Year Highest Occurred | 1987 | 1986 | 1998 | 1988 | 1992 | 1996 | 1998 | 1993 | 1997 | 1985 | 1986 | 1991 | 1996 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.64 | 0.79 | 0.34 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1976 | 2000 | 1972 | 1996 | 2000 | 1982 | 1980 | 1984 | 1989 | 1975 | 1999 | 1996 | 1976 |
| Heating Degree Days (F) | 1092. | 852. | 756. | 536. | 265. | 61. | 2. | 17. | 138. | 458. | 804. | 1094. | 6075. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 10. | 89. | 164. | 123. | 25. | 0. | 0. | 0. | 411. |