| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 46.2 | 49.4 | 53.2 | 58.0 | 63.4 | 67.8 | 72.5 | 72.7 | 67.3 | 59.3 | 51.5 | 46.6 | 59.0 |
| Highest Mean Max. Temperature (F) | 53.1 | 54.7 | 57.1 | 61.3 | 67.3 | 71.8 | 77.8 | 77.0 | 72.2 | 62.0 | 55.0 | 51.5 | 77.8 |
| Year Highest Occurred | 1986 | 1977 | 1981 | 1992 | 1997 | 1978 | 1985 | 1997 | 1974 | 1987 | 1995 | 1979 | 1985 |
| Lowest Mean Max. Temperature (F) | 40.7 | 41.9 | 48.6 | 53.8 | 59.8 | 63.6 | 68.6 | 67.1 | 62.9 | 57.2 | 41.5 | 41.2 | 40.7 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1972 | 1974 | 1971 | 1986 | 1976 | 1972 | 1971 | 1985 | 1985 | 1979 |
| Mean Temperature (F) | 40.5 | 42.9 | 45.9 | 50.0 | 55.0 | 59.4 | 63.3 | 63.7 | 58.9 | 52.1 | 45.6 | 40.9 | 51.5 |
| Highest Mean Temperature (F) | 46.1 | 47.1 | 49.5 | 54.4 | 58.9 | 62.1 | 65.7 | 66.7 | 62.0 | 54.9 | 49.0 | 45.9 | 66.7 |
| Year Highest Occurred | 1986 | 1977 | 1994 | 1994 | 1993 | 1978 | 1985 | 1997 | 1995 | 1992 | 1995 | 1979 | 1997 |
| Lowest Mean Temperature (F) | 33.9 | 34.1 | 41.7 | 45.7 | 51.8 | 56.0 | 60.5 | 60.3 | 55.3 | 49.6 | 34.6 | 35.1 | 33.9 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1974 | 1971 | 1986 | 1973 | 1972 | 1972 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | 34.8 | 36.4 | 38.6 | 42.0 | 46.6 | 50.9 | 54.1 | 54.7 | 50.4 | 44.9 | 39.6 | 35.2 | 44.0 |
| Highest Mean Min. Temperature (F) | 40.6 | 41.3 | 42.9 | 48.2 | 51.5 | 54.6 | 57.8 | 57.8 | 53.3 | 48.7 | 44.7 | 40.3 | 57.8 |
| Year Highest Occurred | 1994 | 1991 | 1994 | 1994 | 1993 | 1993 | 1992 | 1993 | 1979 | 1992 | 1992 | 1979 | 1992 |
| Lowest Mean Min. Temperature (F) | 27.1 | 26.3 | 34.6 | 37.5 | 43.8 | 47.4 | 51.9 | 51.6 | 47.7 | 41.5 | 27.6 | 28.6 | 26.3 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1999 | 1976 | 1999 | 1973 | 1972 | 1972 | 1985 | 1983 | 1989 |
| Mean Precipitation (in.) | 3.91 | 3.15 | 3.01 | 2.68 | 2.54 | 1.89 | 1.20 | 1.36 | 1.76 | 2.98 | 5.58 | 4.78 | 34.84 |
| Highest Precipitation (in.) | 7.14 | 5.67 | 6.26 | 5.14 | 5.14 | 3.89 | 3.47 | 3.87 | 4.24 | 6.42 | 12.82 | 8.01 | 12.82 |
| Year Highest Occurred | 1971 | 1982 | 1999 | 1992 | 1984 | 1981 | 1983 | 1975 | 1978 | 1985 | 1990 | 1975 | 1990 |
| Lowest Precipitation (in.) | 0.39 | 0.31 | 1.03 | 0.95 | 0.46 | 0.52 | 0.11 | 0.00 | 0.08 | 0.14 | 1.48 | 0.86 | 0.00 |
| Year Lowest Occurred | 1985 | 1993 | 1992 | 1998 | 1995 | 1996 | 1985 | 1986 | 1991 | 1987 | 1976 | 1985 | 1986 |
| Heating Degree Days (F) | 761. | 619. | 591. | 451. | 310. | 173. | 75. | 77. | 191. | 400. | 584. | 748. | 4980. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 4. | 22. | 36. | 6. | 0. | 0. | 0. | 68. |