| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 45.7 | 49.5 | 53.2 | 58.2 | 63.7 | 68.3 | 74.2 | 75.2 | 70.0 | 60.0 | 50.3 | 45.0 | 59.4 |
| Highest Mean Max. Temperature (F) | 52.9 | 55.4 | 58.9 | 63.0 | 69.1 | 73.2 | 82.8 | 80.2 | 76.6 | 66.0 | 56.5 | 49.8 | 82.8 |
| Year Highest Occurred | 1981 | 1991 | 1992 | 1989 | 1992 | 1987 | 1985 | 1986 | 1974 | 1987 | 1997 | 1980 | 1985 |
| Lowest Mean Max. Temperature (F) | 40.3 | 41.2 | 47.4 | 53.0 | 59.2 | 63.0 | 66.6 | 68.3 | 64.7 | 56.1 | 39.5 | 38.9 | 38.9 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1996 | 1971 | 1993 | 1976 | 1978 | 1975 | 1985 | 1983 | 1983 |
| Mean Temperature (F) | 39.4 | 41.8 | 44.3 | 48.4 | 53.8 | 58.5 | 63.1 | 63.7 | 58.6 | 50.8 | 43.9 | 39.4 | 50.5 |
| Highest Mean Temperature (F) | 46.2 | 46.4 | 47.7 | 51.5 | 57.9 | 62.3 | 67.7 | 67.3 | 62.1 | 53.6 | 48.4 | 44.1 | 67.7 |
| Year Highest Occurred | 1981 | 1992 | 1986 | 1992 | 1993 | 1978 | 1985 | 1977 | 1974 | 1988 | 1997 | 1980 | 1985 |
| Lowest Mean Temperature (F) | 33.3 | 32.9 | 40.0 | 43.2 | 50.3 | 54.8 | 58.7 | 59.6 | 55.4 | 47.4 | 33.0 | 32.8 | 32.8 |
| Year Lowest Occurred | 1980 | 1989 | 1971 | 1975 | 1999 | 1971 | 1993 | 1973 | 1983 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 33.1 | 34.1 | 35.4 | 38.5 | 43.9 | 48.6 | 52.0 | 52.1 | 47.1 | 41.6 | 37.4 | 33.8 | 41.5 |
| Highest Mean Min. Temperature (F) | 39.4 | 38.7 | 38.4 | 41.5 | 47.3 | 51.6 | 56.4 | 55.1 | 50.5 | 46.3 | 41.6 | 38.8 | 56.4 |
| Year Highest Occurred | 1981 | 1998 | 1984 | 1996 | 1993 | 1978 | 1998 | 1977 | 1979 | 1988 | 1987 | 1979 | 1998 |
| Lowest Mean Min. Temperature (F) | 25.9 | 24.5 | 31.4 | 33.5 | 40.3 | 44.5 | 49.9 | 48.5 | 43.2 | 38.0 | 26.5 | 25.8 | 24.5 |
| Year Lowest Occurred | 1980 | 1989 | 1985 | 1975 | 1999 | 1976 | 1984 | 1973 | 1984 | 1984 | 1985 | 1985 | 1989 |
| Mean Precipitation (in.) | 8.45 | 6.46 | 6.18 | 4.63 | 3.79 | 2.94 | 1.60 | 1.50 | 2.80 | 5.26 | 9.43 | 9.02 | 62.06 |
| Highest Precipitation (in.) | 16.22 | 12.83 | 12.29 | 8.03 | 6.96 | 5.50 | 4.35 | 4.57 | 6.03 | 12.39 | 18.24 | 17.90 | 18.24 |
| Year Highest Occurred | 1974 | 1972 | 1997 | 1996 | 1996 | 1993 | 1983 | 1975 | 1978 | 1975 | 1990 | 1979 | 1990 |
| Lowest Precipitation (in.) | 1.11 | 0.38 | 1.73 | 1.51 | 1.49 | 0.52 | 0.15 | 0.21 | 0.06 | 0.59 | 1.93 | 3.14 | 0.06 |
| Year Lowest Occurred | 1985 | 1993 | 1992 | 1983 | 1992 | 1987 | 1973 | 1986 | 1975 | 1987 | 1979 | 1985 | 1975 |
| Heating Degree Days (F) | 794. | 650. | 641. | 500. | 347. | 204. | 96. | 89. | 204. | 440. | 634. | 794. | 5393. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 8. | 37. | 46. | 10. | 0. | 0. | 0. | 101. |