| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 39.3 | 46.0 | 56.1 | 64.0 | 72.4 | 82.8 | 90.5 | 89.2 | 79.3 | 66.0 | 51.1 | 41.2 | 64.8 |
| Highest Mean Max. Temperature (F) | 48.8 | 55.0 | 63.6 | 72.4 | 80.2 | 88.4 | 94.3 | 93.0 | 86.1 | 74.3 | 59.2 | 52.0 | 94.3 |
| Year Highest Occurred | 2000 | 1995 | 1972 | 1992 | 1992 | 1996 | 2000 | 2000 | 1979 | 1988 | 1999 | 1977 | 2000 |
| Lowest Mean Max. Temperature (F) | 27.1 | 30.0 | 48.2 | 53.9 | 65.8 | 75.1 | 86.4 | 85.8 | 74.0 | 58.7 | 44.2 | 31.7 | 27.1 |
| Year Lowest Occurred | 1984 | 1984 | 1984 | 1975 | 1977 | 1995 | 1993 | 1975 | 1986 | 1982 | 2000 | 1985 | 1984 |
| Mean Temperature (F) | 27.1 | 33.1 | 42.1 | 49.0 | 57.3 | 66.5 | 73.6 | 72.1 | 62.0 | 49.8 | 37.4 | 28.3 | 49.9 |
| Highest Mean Temperature (F) | 35.0 | 40.8 | 48.0 | 54.9 | 61.9 | 71.5 | 76.3 | 75.8 | 66.6 | 55.5 | 42.8 | 36.9 | 76.3 |
| Year Highest Occurred | 1998 | 1986 | 1986 | 1992 | 1992 | 1986 | 2000 | 2000 | 1979 | 1988 | 1995 | 1977 | 2000 |
| Lowest Mean Temperature (F) | 15.8 | 18.2 | 36.4 | 41.4 | 53.2 | 61.7 | 68.9 | 68.4 | 58.3 | 45.8 | 31.5 | 17.8 | 15.8 |
| Year Lowest Occurred | 1984 | 1984 | 1976 | 1975 | 1977 | 1995 | 1993 | 1976 | 1971 | 1984 | 1993 | 1990 | 1984 |
| Mean Min. Temperature (F) | 14.8 | 20.2 | 28.0 | 34.0 | 42.1 | 50.2 | 56.6 | 55.0 | 44.7 | 33.6 | 23.6 | 15.4 | 34.9 |
| Highest Mean Min. Temperature (F) | 22.8 | 28.8 | 33.7 | 38.7 | 46.2 | 55.2 | 59.6 | 59.0 | 50.3 | 36.8 | 29.3 | 22.1 | 59.6 |
| Year Highest Occurred | 1978 | 1986 | 1986 | 1990 | 1985 | 1988 | 1975 | 1994 | 1998 | 1972 | 1983 | 1996 | 1975 |
| Lowest Mean Min. Temperature (F) | 4.5 | 6.4 | 21.9 | 28.9 | 38.7 | 47.0 | 51.4 | 49.2 | 41.0 | 29.3 | 16.6 | 2.8 | 2.8 |
| Year Lowest Occurred | 1984 | 1984 | 1976 | 1975 | 1983 | 1984 | 1993 | 1974 | 1971 | 1995 | 1992 | 1990 | 1990 |
| Mean Precipitation (in.) | 0.41 | 0.35 | 0.45 | 0.52 | 0.95 | 0.53 | 0.53 | 0.65 | 0.55 | 0.76 | 0.36 | 0.22 | 6.28 |
| Highest Precipitation (in.) | 1.54 | 1.21 | 1.27 | 1.79 | 3.08 | 2.56 | 2.27 | 3.11 | 4.08 | 3.00 | 1.04 | 0.85 | 4.08 |
| Year Highest Occurred | 1993 | 1998 | 1998 | 1999 | 1977 | 1997 | 1984 | 1983 | 1982 | 1981 | 1974 | 1983 | 1982 |
| Lowest Precipitation (in.) | 0.02 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1989 | 1988 | 1997 | 1992 | 1972 | 1978 | 1989 | 1981 | 1987 | 1995 | 1977 | 1999 | 1988 |
| Heating Degree Days (F) | 1176. | 893. | 712. | 480. | 254. | 69. | 3. | 8. | 132. | 472. | 830. | 1138. | 6167. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 15. | 114. | 269. | 229. | 42. | 0. | 0. | 0. | 670. |