| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 35.1 | 42.8 | 54.9 | 64.6 | 73.1 | 80.1 | 87.8 | 87.2 | 77.7 | 63.7 | 46.0 | 35.7 | 62.4 |
| Highest Mean Max. Temperature (F) | 43.4 | 51.0 | 60.8 | 71.7 | 78.0 | 87.2 | 95.5 | 94.0 | 85.0 | 69.8 | 54.1 | 42.9 | 95.5 |
| Year Highest Occurred | 1990 | 1991 | 1992 | 1977 | 1992 | 1992 | 1985 | 1971 | 1990 | 1988 | 1990 | 1999 | 1985 |
| Lowest Mean Max. Temperature (F) | 24.5 | 34.4 | 48.7 | 60.5 | 66.1 | 75.8 | 79.4 | 80.7 | 71.2 | 60.3 | 35.3 | 27.2 | 24.5 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1980 | 1993 | 1995 | 1986 | 1975 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 29.2 | 35.1 | 44.4 | 52.7 | 60.9 | 67.8 | 74.4 | 73.7 | 64.5 | 52.3 | 39.1 | 30.5 | 52.1 |
| Highest Mean Temperature (F) | 37.0 | 41.5 | 49.6 | 57.9 | 64.9 | 73.6 | 79.6 | 79.0 | 70.5 | 57.3 | 45.2 | 37.4 | 79.6 |
| Year Highest Occurred | 1990 | 1991 | 1992 | 1990 | 1993 | 1992 | 1985 | 1971 | 1998 | 1988 | 1990 | 1999 | 1985 |
| Lowest Mean Temperature (F) | 16.7 | 26.9 | 39.4 | 48.8 | 56.0 | 64.1 | 68.9 | 68.7 | 59.8 | 49.1 | 27.9 | 21.3 | 16.7 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1972 | 1977 | 1981 | 1993 | 1995 | 1972 | 1984 | 1985 | 1984 | 1979 |
| Mean Min. Temperature (F) | 23.2 | 27.4 | 33.9 | 40.8 | 48.6 | 55.5 | 61.0 | 60.2 | 51.2 | 40.8 | 32.2 | 25.2 | 41.7 |
| Highest Mean Min. Temperature (F) | 32.1 | 34.3 | 38.4 | 46.4 | 52.0 | 60.0 | 66.2 | 63.9 | 56.9 | 45.1 | 37.8 | 31.8 | 66.2 |
| Year Highest Occurred | 1981 | 1992 | 1992 | 1990 | 1993 | 1992 | 1998 | 1971 | 1998 | 1979 | 1999 | 1999 | 1998 |
| Lowest Mean Min. Temperature (F) | 8.9 | 19.3 | 30.2 | 36.7 | 44.9 | 51.7 | 56.0 | 56.3 | 46.3 | 37.1 | 20.5 | 15.3 | 8.9 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1982 | 1984 | 1981 | 1984 | 1980 | 1984 | 1984 | 1985 | 1984 | 1979 |
| Mean Precipitation (in.) | 1.35 | 0.94 | 0.64 | 0.51 | 0.51 | 0.69 | 0.30 | 0.41 | 0.40 | 0.49 | 1.36 | 1.52 | 9.12 |
| Highest Precipitation (in.) | 3.32 | 2.22 | 2.07 | 1.60 | 1.95 | 2.44 | 1.40 | 3.09 | 2.14 | 1.91 | 4.45 | 4.17 | 4.45 |
| Year Highest Occurred | 1995 | 1998 | 1983 | 1992 | 1981 | 1972 | 1987 | 1975 | 1986 | 1997 | 1983 | 1996 | 1983 |
| Lowest Precipitation (in.) | 0.10 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.08 | 0.00 |
| Year Lowest Occurred | 1977 | 1988 | 1994 | 1999 | 1992 | 1989 | 1988 | 2000 | 1999 | 1987 | 1976 | 1976 | 1994 |
| Heating Degree Days (F) | 1111. | 837. | 638. | 371. | 161. | 47. | 7. | 7. | 110. | 396. | 778. | 1070. | 5533. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 32. | 129. | 298. | 277. | 94. | 1. | 0. | 0. | 832. |