| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 47.2 | 53.3 | 58.6 | 65.6 | 74.8 | 83.9 | 91.9 | 91.3 | 84.9 | 73.2 | 54.6 | 46.7 | 68.8 |
| Highest Mean Max. Temperature (F) | 50.8 | 63.5 | 66.0 | 74.9 | 85.0 | 90.4 | 97.6 | 96.1 | 93.1 | 81.6 | 63.4 | 51.0 | 97.6 |
| Year Highest Occurred | 1986 | 1988 | 1988 | 1987 | 1992 | 1977 | 1994 | 1986 | 1991 | 1987 | 1995 | 1989 | 1994 |
| Lowest Mean Max. Temperature (F) | 42.6 | 46.4 | 50.8 | 56.8 | 63.6 | 76.0 | 84.9 | 81.4 | 75.2 | 62.0 | 46.6 | 40.2 | 40.2 |
| Year Lowest Occurred | 1982 | 1999 | 1975 | 1975 | 1998 | 1980 | 1983 | 1976 | 1986 | 1984 | 1994 | 1972 | 1972 |
| Mean Temperature (F) | 39.3 | 43.0 | 46.6 | 51.2 | 58.5 | 65.9 | 72.1 | 71.0 | 64.8 | 55.9 | 44.8 | 39.0 | 54.3 |
| Highest Mean Temperature (F) | 43.5 | 48.9 | 51.4 | 57.7 | 66.2 | 71.6 | 77.1 | 74.4 | 70.4 | 61.1 | 51.5 | 43.4 | 77.1 |
| Year Highest Occurred | 1986 | 1995 | 1993 | 1990 | 1992 | 1977 | 1994 | 1977 | 1991 | 1987 | 1995 | 1995 | 1994 |
| Lowest Mean Temperature (F) | 35.6 | 38.8 | 41.8 | 43.4 | 51.4 | 60.4 | 66.8 | 66.5 | 59.6 | 50.1 | 38.1 | 33.1 | 33.1 |
| Year Lowest Occurred | 1982 | 1989 | 1975 | 1975 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1994 | 1972 | 1972 |
| Mean Min. Temperature (F) | 31.3 | 32.6 | 34.5 | 36.7 | 42.1 | 47.8 | 52.2 | 50.6 | 44.7 | 38.6 | 34.9 | 31.2 | 39.8 |
| Highest Mean Min. Temperature (F) | 37.1 | 37.3 | 40.5 | 42.5 | 47.3 | 52.8 | 56.5 | 53.3 | 48.4 | 44.2 | 41.1 | 37.0 | 56.5 |
| Year Highest Occurred | 1995 | 1992 | 1993 | 1990 | 1992 | 1977 | 1994 | 1977 | 1998 | 1993 | 1997 | 1995 | 1994 |
| Lowest Mean Min. Temperature (F) | 27.0 | 27.9 | 29.9 | 29.9 | 38.5 | 44.3 | 48.5 | 46.6 | 40.8 | 32.8 | 26.5 | 23.8 | 23.8 |
| Year Lowest Occurred | 1974 | 1989 | 1977 | 1975 | 1977 | 1976 | 1989 | 1973 | 1971 | 1971 | 1993 | 1990 | 1990 |
| Mean Precipitation (in.) | 5.94 | 5.26 | 4.93 | 2.04 | 1.42 | 0.63 | 0.21 | 0.25 | 0.84 | 1.91 | 4.44 | 4.96 | 32.83 |
| Highest Precipitation (in.) | 18.20 | 14.89 | 15.01 | 4.49 | 6.98 | 2.64 | 0.74 | 1.61 | 4.68 | 5.38 | 13.33 | 13.90 | 18.20 |
| Year Highest Occurred | 1995 | 1998 | 1983 | 2000 | 1993 | 1997 | 1991 | 1976 | 1989 | 1975 | 1984 | 1996 | 1995 |
| Lowest Precipitation (in.) | 0.49 | 0.14 | 0.20 | 0.23 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.73 | 0.02 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 1988 | 1985 | 1984 | 1996 | 1999 | 2000 | 1999 | 1995 | 1993 | 1989 | 1984 |
| Heating Degree Days (F) | 799. | 619. | 572. | 420. | 230. | 69. | 11. | 8. | 87. | 296. | 609. | 807. | 4527. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 5. | 25. | 94. | 229. | 193. | 82. | 13. | 0. | 0. | 641. |