| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 49.0 | 54.6 | 59.8 | 67.4 | 76.9 | 85.8 | 94.2 | 94.3 | 87.8 | 75.4 | 55.8 | 47.0 | 70.7 |
| Highest Mean Max. Temperature (F) | 53.7 | 66.4 | 67.4 | 78.8 | 86.5 | 92.4 | 99.8 | 101.4 | 96.8 | 86.0 | 66.6 | 53.1 | 101.4 |
| Year Highest Occurred | 1985 | 1991 | 1990 | 1987 | 1992 | 1977 | 1994 | 1986 | 1974 | 1978 | 1995 | 1976 | 1986 |
| Lowest Mean Max. Temperature (F) | 44.0 | 45.6 | 52.6 | 60.1 | 62.9 | 78.5 | 86.5 | 84.8 | 77.5 | 65.5 | 48.0 | 39.9 | 39.9 |
| Year Lowest Occurred | 1993 | 1998 | 1983 | 1975 | 1998 | 1980 | 1983 | 1976 | 1986 | 1984 | 1994 | 1972 | 1972 |
| Mean Temperature (F) | 38.4 | 41.9 | 45.7 | 50.4 | 58.3 | 65.7 | 72.1 | 71.4 | 65.1 | 55.5 | 44.2 | 37.3 | 53.8 |
| Highest Mean Temperature (F) | 42.2 | 47.1 | 49.6 | 57.4 | 65.0 | 70.8 | 76.7 | 75.9 | 69.0 | 62.1 | 51.0 | 41.6 | 76.7 |
| Year Highest Occurred | 1986 | 1995 | 1986 | 1987 | 1992 | 1977 | 1996 | 1986 | 1991 | 1987 | 1995 | 1995 | 1996 |
| Lowest Mean Temperature (F) | 34.3 | 36.9 | 41.4 | 43.8 | 52.5 | 59.9 | 66.8 | 67.0 | 59.7 | 51.0 | 35.5 | 30.0 | 30.0 |
| Year Lowest Occurred | 1982 | 1989 | 1991 | 1975 | 1977 | 1980 | 1993 | 1976 | 1982 | 1984 | 1994 | 1972 | 1972 |
| Mean Min. Temperature (F) | 27.7 | 29.2 | 31.5 | 33.4 | 39.7 | 45.6 | 49.9 | 48.4 | 42.4 | 35.5 | 32.6 | 27.6 | 37.0 |
| Highest Mean Min. Temperature (F) | 35.4 | 35.4 | 37.7 | 38.6 | 44.4 | 51.0 | 55.0 | 52.5 | 46.9 | 40.6 | 39.7 | 34.0 | 55.0 |
| Year Highest Occurred | 1998 | 2000 | 1983 | 1988 | 1997 | 1992 | 1992 | 1983 | 1976 | 1992 | 1997 | 1973 | 1992 |
| Lowest Mean Min. Temperature (F) | 22.9 | 23.6 | 26.8 | 27.4 | 34.5 | 40.6 | 44.7 | 44.3 | 37.2 | 30.8 | 23.0 | 19.9 | 19.9 |
| Year Lowest Occurred | 1991 | 1989 | 1976 | 1975 | 1982 | 1979 | 1982 | 1980 | 1982 | 1994 | 1994 | 1990 | 1990 |
| Mean Precipitation (in.) | 7.08 | 6.05 | 5.49 | 2.25 | 1.31 | 0.58 | 0.23 | 0.27 | 1.05 | 2.34 | 5.47 | 6.29 | 38.41 |
| Highest Precipitation (in.) | 20.82 | 15.17 | 14.86 | 4.71 | 6.91 | 2.28 | 1.24 | 2.86 | 4.57 | 7.11 | 16.89 | 21.04 | 21.04 |
| Year Highest Occurred | 1995 | 1998 | 1983 | 1978 | 1990 | 1993 | 1974 | 1976 | 1986 | 1975 | 1984 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.56 | 0.17 | 0.50 | 0.16 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.47 | 0.00 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 1994 | 1987 | 1982 | 1986 | 1999 | 2000 | 1998 | 1995 | 1995 | 1989 | 1982 |
| Heating Degree Days (F) | 826. | 648. | 599. | 441. | 233. | 79. | 17. | 10. | 79. | 307. | 623. | 859. | 4721. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 3. | 25. | 100. | 235. | 207. | 82. | 12. | 0. | 0. | 664. |