| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 53.2 | 56.8 | 61.4 | 68.3 | 77.4 | 86.5 | 94.5 | 93.7 | 87.1 | 75.6 | 59.9 | 53.3 | 72.3 |
| Highest Mean Max. Temperature (F) | 58.5 | 65.9 | 67.7 | 80.7 | 87.1 | 93.0 | 100.5 | 98.4 | 95.4 | 84.9 | 69.6 | 60.7 | 100.5 |
| Year Highest Occurred | 1984 | 1991 | 1988 | 1985 | 1992 | 1985 | 1985 | 1996 | 1991 | 1988 | 1986 | 1989 | 1985 |
| Lowest Mean Max. Temperature (F) | 46.9 | 48.6 | 54.9 | 60.4 | 62.9 | 79.5 | 88.0 | 85.0 | 79.9 | 68.2 | 52.0 | 44.5 | 44.5 |
| Year Lowest Occurred | 1982 | 1998 | 1991 | 1975 | 1998 | 1980 | 1983 | 1976 | 1985 | 1984 | 1973 | 1972 | 1972 |
| Mean Temperature (F) | 46.3 | 49.1 | 52.4 | 57.9 | 66.1 | 74.4 | 81.2 | 80.1 | 74.5 | 65.1 | 52.4 | 46.6 | 62.2 |
| Highest Mean Temperature (F) | 50.2 | 55.5 | 57.1 | 66.0 | 74.8 | 79.6 | 85.3 | 83.6 | 80.8 | 71.9 | 58.8 | 50.9 | 85.3 |
| Year Highest Occurred | 1984 | 1991 | 1986 | 1985 | 1992 | 1985 | 1985 | 1996 | 1991 | 1988 | 1986 | 1989 | 1985 |
| Lowest Mean Temperature (F) | 40.7 | 44.1 | 47.3 | 50.5 | 55.4 | 67.4 | 75.3 | 73.1 | 68.7 | 59.0 | 46.0 | 39.4 | 39.4 |
| Year Lowest Occurred | 1982 | 1998 | 1975 | 1975 | 1998 | 1980 | 1983 | 1976 | 1985 | 1984 | 1994 | 1972 | 1972 |
| Mean Min. Temperature (F) | 39.4 | 41.4 | 43.3 | 47.5 | 54.7 | 62.2 | 67.9 | 66.4 | 61.9 | 54.5 | 44.9 | 39.8 | 52.0 |
| Highest Mean Min. Temperature (F) | 43.5 | 45.7 | 47.6 | 52.8 | 62.4 | 66.3 | 71.4 | 69.5 | 66.1 | 59.4 | 50.4 | 43.7 | 71.4 |
| Year Highest Occurred | 1995 | 1992 | 1993 | 1990 | 1992 | 1977 | 1988 | 1971 | 1991 | 1987 | 1995 | 1995 | 1988 |
| Lowest Mean Min. Temperature (F) | 34.4 | 36.6 | 38.7 | 40.6 | 47.6 | 55.2 | 62.5 | 61.2 | 57.3 | 49.7 | 39.1 | 34.2 | 34.2 |
| Year Lowest Occurred | 1982 | 1990 | 1977 | 1975 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1994 | 1972 | 1972 |
| Mean Precipitation (in.) | 11.47 | 10.76 | 10.79 | 4.18 | 2.80 | 1.25 | 0.26 | 0.42 | 1.63 | 2.97 | 7.86 | 9.01 | 63.40 |
| Highest Precipitation (in.) | 38.21 | 36.73 | 34.55 | 11.52 | 12.76 | 6.78 | 4.03 | 5.47 | 8.89 | 7.99 | 27.62 | 27.82 | 38.21 |
| Year Highest Occurred | 1995 | 1998 | 1983 | 1982 | 1990 | 1992 | 1974 | 1976 | 1977 | 1979 | 1973 | 1996 | 1995 |
| Lowest Precipitation (in.) | 0.58 | 0.10 | 0.34 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.27 | 0.00 | 0.00 |
| Year Lowest Occurred | 1984 | 1988 | 1988 | 1973 | 1982 | 1986 | 1999 | 2000 | 1999 | 1995 | 1995 | 1989 | 1982 |
| Heating Degree Days (F) | 580. | 445. | 398. | 248. | 113. | 14. | 0. | 0. | 16. | 120. | 387. | 573. | 2894. |
| Cooling Degree Days (F) | 0. | 0. | 7. | 36. | 146. | 294. | 502. | 467. | 302. | 121. | 9. | 0. | 1884. |