| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 43.7 | 50.2 | 58.8 | 67.8 | 76.0 | 87.0 | 92.1 | 90.0 | 82.0 | 70.6 | 54.7 | 45.5 | 68.2 |
| Highest Mean Max. Temperature (F) | 58.0 | 59.7 | 67.5 | 76.2 | 81.9 | 92.7 | 97.1 | 95.9 | 87.4 | 76.1 | 65.7 | 53.8 | 97.1 |
| Year Highest Occurred | 1986 | 1999 | 1972 | 1981 | 1998 | 1994 | 1980 | 2000 | 1977 | 1975 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 30.0 | 35.6 | 52.6 | 59.4 | 67.9 | 80.2 | 87.9 | 85.2 | 75.6 | 63.1 | 43.2 | 31.1 | 30.0 |
| Year Lowest Occurred | 1979 | 1989 | 1984 | 1983 | 1995 | 1989 | 1996 | 1992 | 1973 | 1984 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 28.6 | 34.5 | 42.6 | 51.8 | 61.2 | 72.1 | 77.2 | 75.3 | 66.2 | 53.5 | 39.0 | 30.3 | 52.7 |
| Highest Mean Temperature (F) | 40.0 | 41.4 | 49.3 | 58.5 | 65.4 | 76.1 | 81.2 | 80.6 | 71.2 | 56.5 | 45.1 | 37.8 | 81.2 |
| Year Highest Occurred | 1986 | 1976 | 1986 | 1981 | 1998 | 1994 | 1980 | 1983 | 1998 | 1974 | 1981 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 18.0 | 23.3 | 37.9 | 46.1 | 56.6 | 65.9 | 74.3 | 71.1 | 61.8 | 49.3 | 31.7 | 19.0 | 18.0 |
| Year Lowest Occurred | 1979 | 1989 | 1996 | 1983 | 1995 | 1989 | 1992 | 1992 | 1993 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 13.5 | 18.8 | 26.3 | 35.7 | 46.3 | 57.2 | 62.2 | 60.6 | 50.4 | 36.4 | 23.2 | 15.1 | 37.1 |
| Highest Mean Min. Temperature (F) | 21.9 | 24.8 | 32.1 | 40.8 | 51.2 | 61.2 | 65.4 | 65.5 | 55.3 | 41.1 | 29.1 | 22.4 | 65.5 |
| Year Highest Occurred | 1986 | 1987 | 1986 | 1981 | 1977 | 1981 | 1977 | 1983 | 1998 | 1981 | 1981 | 1975 | 1983 |
| Lowest Mean Min. Temperature (F) | 4.7 | 11.0 | 20.0 | 29.6 | 40.2 | 51.6 | 58.0 | 56.3 | 46.0 | 29.3 | 16.8 | 6.8 | 4.7 |
| Year Lowest Occurred | 1988 | 1989 | 1988 | 1992 | 1992 | 1989 | 1989 | 1991 | 1991 | 1991 | 1991 | 1983 | 1988 |
| Mean Precipitation (in.) | 0.43 | 0.45 | 1.03 | 1.39 | 2.42 | 2.29 | 2.26 | 2.34 | 1.29 | 0.84 | 0.72 | 0.36 | 15.82 |
| Highest Precipitation (in.) | 1.12 | 1.87 | 4.67 | 5.05 | 6.44 | 5.99 | 7.88 | 7.51 | 3.45 | 4.77 | 1.99 | 1.24 | 7.88 |
| Year Highest Occurred | 1999 | 1990 | 1973 | 1980 | 1979 | 1996 | 1998 | 1997 | 1988 | 1997 | 1992 | 1979 | 1998 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.02 | 0.44 | 0.21 | 0.56 | 0.06 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 1973 | 1986 | 1992 | 2000 | 1984 | 1989 | 1974 | 1974 | 1980 | 1995 | 1976 | 1998 |
| Heating Degree Days (F) | 1129. | 855. | 695. | 402. | 163. | 15. | 0. | 5. | 75. | 359. | 782. | 1076. | 5556. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 5. | 43. | 227. | 377. | 323. | 111. | 2. | 0. | 0. | 1088. |