| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 41.3 | 50.1 | 57.8 | 65.3 | 74.0 | 83.7 | 91.7 | 89.8 | 80.2 | 67.3 | 51.5 | 42.3 | 66.3 |
| Highest Mean Max. Temperature (F) | 48.7 | 59.8 | 64.8 | 72.9 | 83.2 | 90.5 | 95.8 | 93.8 | 84.8 | 76.7 | 62.4 | 48.5 | 95.8 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1992 | 1992 | 1974 | 1988 | 1981 | 1974 | 1988 | 1995 | 1980 | 1988 |
| Lowest Mean Max. Temperature (F) | 30.6 | 39.8 | 52.1 | 55.1 | 64.2 | 77.8 | 86.0 | 81.1 | 70.8 | 59.8 | 43.2 | 33.2 | 30.6 |
| Year Lowest Occurred | 1993 | 1993 | 1982 | 1975 | 1998 | 1998 | 1983 | 1976 | 1986 | 1984 | 1994 | 1990 | 1993 |
| Mean Temperature (F) | 29.8 | 37.2 | 43.2 | 49.5 | 57.9 | 66.2 | 73.0 | 70.8 | 62.2 | 50.6 | 37.7 | 30.0 | 50.7 |
| Highest Mean Temperature (F) | 37.7 | 43.9 | 48.3 | 55.1 | 65.0 | 70.8 | 76.2 | 75.3 | 66.6 | 57.1 | 45.0 | 37.1 | 76.2 |
| Year Highest Occurred | 1986 | 1995 | 1978 | 1992 | 1992 | 1974 | 1996 | 1971 | 1981 | 1988 | 1995 | 1981 | 1996 |
| Lowest Mean Temperature (F) | 20.5 | 28.2 | 39.0 | 41.4 | 51.4 | 61.9 | 66.6 | 64.6 | 55.2 | 45.9 | 32.9 | 19.8 | 19.8 |
| Year Lowest Occurred | 1993 | 1989 | 1977 | 1975 | 1977 | 1993 | 1983 | 1976 | 1986 | 1984 | 1985 | 1990 | 1990 |
| Mean Min. Temperature (F) | 18.3 | 24.3 | 28.6 | 33.7 | 41.7 | 48.6 | 54.3 | 51.8 | 44.1 | 33.9 | 23.9 | 17.6 | 35.1 |
| Highest Mean Min. Temperature (F) | 28.4 | 31.4 | 34.9 | 39.3 | 46.7 | 53.9 | 58.0 | 57.3 | 50.7 | 39.6 | 29.7 | 27.0 | 58.0 |
| Year Highest Occurred | 1995 | 2000 | 1978 | 1990 | 1992 | 1981 | 1971 | 1971 | 1998 | 1979 | 1981 | 1981 | 1971 |
| Lowest Mean Min. Temperature (F) | 10.1 | 16.3 | 22.1 | 27.7 | 37.4 | 44.4 | 47.3 | 47.5 | 39.6 | 28.2 | 18.6 | 6.4 | 6.4 |
| Year Lowest Occurred | 1982 | 1989 | 1977 | 1975 | 1991 | 1984 | 1983 | 1985 | 1986 | 1973 | 1993 | 1990 | 1990 |
| Mean Precipitation (in.) | 0.58 | 0.51 | 0.48 | 0.64 | 0.65 | 0.57 | 0.17 | 0.27 | 0.50 | 0.50 | 0.49 | 0.54 | 5.90 |
| Highest Precipitation (in.) | 1.52 | 1.82 | 1.54 | 2.90 | 2.76 | 2.68 | 1.06 | 1.59 | 2.68 | 1.55 | 1.79 | 1.98 | 2.90 |
| Year Highest Occurred | 1997 | 1998 | 1983 | 1990 | 1998 | 1998 | 1976 | 1983 | 1998 | 1984 | 1985 | 1983 | 1990 |
| Lowest Precipitation (in.) | 0.01 | 0.04 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1989 | 1997 | 1999 | 1986 | 1974 | 2000 | 1999 | 1998 | 1999 | 1995 | 1995 | 1989 | 1986 |
| Heating Degree Days (F) | 1091. | 778. | 675. | 468. | 251. | 75. | 9. | 16. | 140. | 448. | 818. | 1087. | 5856. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 3. | 29. | 109. | 258. | 196. | 54. | 2. | 0. | 0. | 651. |