| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 36.2 | 40.1 | 48.5 | 57.5 | 67.4 | 78.1 | 84.8 | 82.9 | 74.0 | 62.2 | 45.2 | 36.8 | 59.5 |
| Highest Mean Max. Temperature (F) | 42.9 | 47.5 | 56.2 | 65.3 | 72.8 | 86.0 | 89.6 | 87.7 | 81.0 | 71.0 | 57.1 | 46.9 | 89.6 |
| Year Highest Occurred | 1999 | 2000 | 1986 | 1992 | 1984 | 1977 | 1988 | 1971 | 1979 | 1988 | 1999 | 1980 | 1988 |
| Lowest Mean Max. Temperature (F) | 23.0 | 29.1 | 39.5 | 48.5 | 60.3 | 68.9 | 78.8 | 78.6 | 68.7 | 53.6 | 37.1 | 27.2 | 23.0 |
| Year Lowest Occurred | 1979 | 1989 | 1973 | 1983 | 1995 | 1998 | 1993 | 1993 | 1971 | 1984 | 2000 | 1971 | 1979 |
| Mean Temperature (F) | 24.6 | 27.9 | 35.9 | 44.0 | 52.8 | 62.3 | 69.0 | 67.4 | 58.3 | 47.7 | 33.7 | 25.7 | 45.8 |
| Highest Mean Temperature (F) | 32.6 | 36.2 | 42.3 | 50.5 | 57.2 | 68.8 | 72.6 | 71.8 | 63.3 | 54.5 | 41.9 | 34.7 | 72.6 |
| Year Highest Occurred | 1999 | 2000 | 1986 | 1992 | 1992 | 1988 | 1988 | 1971 | 1990 | 1988 | 1999 | 1980 | 1988 |
| Lowest Mean Temperature (F) | 11.4 | 15.1 | 28.5 | 37.1 | 48.1 | 55.7 | 63.5 | 64.1 | 52.7 | 41.1 | 27.1 | 15.8 | 11.4 |
| Year Lowest Occurred | 1979 | 1973 | 1973 | 1983 | 1983 | 1998 | 1993 | 1993 | 1971 | 1984 | 2000 | 1971 | 1979 |
| Mean Min. Temperature (F) | 13.0 | 15.6 | 23.2 | 30.4 | 38.1 | 46.4 | 53.2 | 51.8 | 42.5 | 33.2 | 22.2 | 14.6 | 32.0 |
| Highest Mean Min. Temperature (F) | 22.2 | 24.8 | 28.3 | 35.8 | 42.0 | 51.6 | 56.1 | 56.6 | 48.7 | 38.1 | 28.3 | 22.6 | 56.6 |
| Year Highest Occurred | 1999 | 2000 | 1986 | 1992 | 1992 | 1988 | 1999 | 2000 | 1990 | 1988 | 1995 | 1980 | 2000 |
| Lowest Mean Min. Temperature (F) | -0.1 | 0.6 | 17.2 | 23.5 | 32.5 | 42.4 | 48.2 | 46.5 | 36.7 | 28.4 | 17.0 | 4.3 | -0.1 |
| Year Lowest Occurred | 1979 | 1973 | 1977 | 1982 | 1977 | 1998 | 1993 | 1976 | 1971 | 1971 | 2000 | 1971 | 1979 |
| Mean Precipitation (in.) | 0.39 | 0.34 | 0.65 | 1.13 | 1.54 | 1.00 | 0.98 | 0.96 | 0.91 | 0.95 | 0.52 | 0.32 | 9.69 |
| Highest Precipitation (in.) | 1.73 | 1.07 | 1.47 | 2.43 | 3.63 | 3.13 | 2.85 | 2.54 | 3.31 | 2.60 | 2.27 | 1.11 | 3.63 |
| Year Highest Occurred | 1997 | 1989 | 1978 | 1973 | 1975 | 1998 | 1973 | 1984 | 1982 | 1986 | 1983 | 1983 | 1975 |
| Lowest Precipitation (in.) | 0.05 | 0.00 | 0.02 | 0.21 | 0.00 | 0.00 | 0.10 | 0.02 | 0.00 | 0.01 | 0.00 | 0.02 | 0.00 |
| Year Lowest Occurred | 1989 | 1973 | 1971 | 1987 | 1974 | 1988 | 1979 | 1985 | 1979 | 1988 | 1976 | 1976 | 1973 |
| Heating Degree Days (F) | 1252. | 1041. | 904. | 632. | 384. | 146. | 22. | 36. | 219. | 537. | 939. | 1219. | 7331. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 4. | 63. | 146. | 109. | 16. | 0. | 0. | 0. | 338. |