| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 43.4 | 51.3 | 58.6 | 66.2 | 75.2 | 85.6 | 94.6 | 93.1 | 83.7 | 70.9 | 54.4 | 44.8 | 68.5 |
| Highest Mean Max. Temperature (F) | 50.1 | 62.3 | 66.4 | 75.5 | 85.8 | 93.3 | 98.6 | 97.4 | 89.3 | 80.4 | 63.9 | 52.4 | 98.6 |
| Year Highest Occurred | 1981 | 1995 | 1972 | 1987 | 1992 | 1974 | 1994 | 1971 | 1979 | 1988 | 1995 | 1980 | 1994 |
| Lowest Mean Max. Temperature (F) | 33.4 | 40.4 | 52.4 | 56.1 | 64.0 | 77.7 | 88.9 | 83.9 | 75.3 | 61.9 | 44.0 | 33.4 | 33.4 |
| Year Lowest Occurred | 1993 | 1993 | 1991 | 1975 | 1998 | 1998 | 1983 | 1976 | 1986 | 1984 | 1994 | 1990 | 1993 |
| Mean Temperature (F) | 30.7 | 37.2 | 42.9 | 48.8 | 57.2 | 65.9 | 73.2 | 71.4 | 62.9 | 51.4 | 39.1 | 31.0 | 51.0 |
| Highest Mean Temperature (F) | 38.4 | 44.5 | 48.4 | 55.4 | 66.1 | 71.7 | 77.4 | 76.5 | 66.0 | 56.6 | 45.0 | 38.8 | 77.4 |
| Year Highest Occurred | 1986 | 1995 | 1978 | 1992 | 1992 | 1977 | 1994 | 1971 | 1975 | 1988 | 1995 | 1977 | 1994 |
| Lowest Mean Temperature (F) | 21.8 | 28.1 | 38.7 | 41.4 | 49.9 | 60.9 | 67.2 | 66.1 | 57.0 | 46.6 | 33.1 | 20.0 | 20.0 |
| Year Lowest Occurred | 1993 | 1989 | 1985 | 1975 | 1998 | 1998 | 1983 | 1976 | 1986 | 1998 | 2000 | 1990 | 1990 |
| Mean Min. Temperature (F) | 17.9 | 23.1 | 27.1 | 31.4 | 39.1 | 46.2 | 51.7 | 49.6 | 42.1 | 31.9 | 23.7 | 17.2 | 33.4 |
| Highest Mean Min. Temperature (F) | 28.7 | 28.8 | 34.3 | 37.0 | 46.4 | 52.7 | 56.2 | 55.5 | 47.4 | 36.8 | 30.8 | 26.2 | 56.2 |
| Year Highest Occurred | 1995 | 2000 | 1993 | 1990 | 1992 | 1977 | 1994 | 1971 | 1998 | 1979 | 1973 | 1973 | 1994 |
| Lowest Mean Min. Temperature (F) | 8.4 | 14.6 | 21.0 | 26.8 | 31.9 | 42.4 | 45.4 | 45.0 | 38.6 | 25.5 | 14.8 | 6.6 | 6.6 |
| Year Lowest Occurred | 1989 | 1989 | 1976 | 1975 | 1999 | 1978 | 1983 | 2000 | 1986 | 1999 | 1993 | 1990 | 1990 |
| Mean Precipitation (in.) | 0.84 | 0.73 | 0.95 | 1.01 | 1.05 | 0.84 | 0.24 | 0.36 | 0.56 | 0.75 | 0.72 | 0.78 | 8.83 |
| Highest Precipitation (in.) | 2.35 | 2.61 | 2.21 | 3.37 | 3.88 | 2.70 | 1.13 | 2.43 | 2.63 | 2.12 | 2.14 | 3.17 | 3.88 |
| Year Highest Occurred | 1997 | 1998 | 1978 | 1990 | 1998 | 1998 | 1979 | 1976 | 1998 | 1984 | 1985 | 1983 | 1998 |
| Lowest Precipitation (in.) | 0.09 | 0.18 | 0.00 | 0.07 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 |
| Year Lowest Occurred | 1994 | 1981 | 1972 | 1992 | 1974 | 2000 | 2000 | 1999 | 1999 | 1995 | 1975 | 1989 | 1972 |
| Heating Degree Days (F) | 1065. | 780. | 687. | 489. | 275. | 84. | 8. | 14. | 119. | 425. | 778. | 1055. | 5779. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 3. | 32. | 110. | 261. | 209. | 55. | 2. | 0. | 0. | 672. |