| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 46.0 | 51.0 | 56.9 | 62.4 | 69.5 | 75.4 | 82.7 | 83.7 | 78.0 | 66.1 | 52.7 | 45.9 | 64.2 |
| Highest Mean Max. Temperature (F) | 52.0 | 57.8 | 65.2 | 67.5 | 79.0 | 83.2 | 91.3 | 89.0 | 86.8 | 72.9 | 59.0 | 50.9 | 91.3 |
| Year Highest Occurred | 1981 | 1992 | 1992 | 1989 | 1992 | 1992 | 1985 | 1981 | 1974 | 1987 | 1976 | 1979 | 1985 |
| Lowest Mean Max. Temperature (F) | 37.2 | 43.3 | 50.8 | 56.6 | 63.6 | 69.2 | 75.2 | 77.2 | 71.3 | 60.7 | 45.5 | 38.8 | 37.2 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1972 | 1996 | 1971 | 1993 | 1976 | 1978 | 1975 | 1985 | 1990 | 1979 |
| Mean Temperature (F) | 39.1 | 42.5 | 46.8 | 50.9 | 57.2 | 62.7 | 68.5 | 68.8 | 63.4 | 53.6 | 44.8 | 39.4 | 53.1 |
| Highest Mean Temperature (F) | 43.1 | 48.3 | 52.1 | 55.0 | 63.4 | 69.6 | 73.2 | 72.1 | 68.6 | 58.3 | 49.9 | 44.5 | 73.2 |
| Year Highest Occurred | 1992 | 1992 | 1992 | 1992 | 1992 | 1992 | 1985 | 1986 | 1974 | 1979 | 1995 | 1979 | 1985 |
| Lowest Mean Temperature (F) | 29.6 | 34.9 | 42.2 | 46.3 | 53.1 | 58.6 | 63.7 | 64.7 | 59.5 | 50.2 | 37.4 | 31.9 | 29.6 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1972 | 1977 | 1971 | 1986 | 2000 | 1996 | 1990 | 1985 | 1990 | 1979 |
| Mean Min. Temperature (F) | 32.2 | 34.0 | 36.6 | 39.3 | 44.8 | 49.9 | 54.3 | 53.8 | 48.8 | 41.1 | 36.9 | 32.8 | 42.0 |
| Highest Mean Min. Temperature (F) | 37.0 | 38.9 | 39.9 | 44.1 | 51.2 | 56.0 | 57.5 | 56.8 | 53.4 | 47.5 | 42.7 | 38.1 | 57.5 |
| Year Highest Occurred | 1992 | 1983 | 1983 | 1992 | 1993 | 1992 | 1995 | 1999 | 1979 | 1979 | 1995 | 1979 | 1995 |
| Lowest Mean Min. Temperature (F) | 22.0 | 26.6 | 33.0 | 34.7 | 40.9 | 47.3 | 50.5 | 50.1 | 45.2 | 36.4 | 28.6 | 24.3 | 22.0 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1999 | 1976 | 1999 | 1980 | 1983 | 1994 | 1978 | 1985 | 1979 |
| Mean Precipitation (in.) | 7.09 | 6.13 | 4.91 | 3.04 | 2.03 | 1.45 | 0.53 | 0.76 | 1.55 | 3.09 | 7.47 | 7.83 | 45.88 |
| Highest Precipitation (in.) | 12.25 | 20.83 | 9.34 | 7.96 | 4.77 | 3.64 | 2.32 | 2.93 | 3.70 | 7.76 | 18.12 | 17.01 | 20.83 |
| Year Highest Occurred | 1990 | 1999 | 1997 | 1996 | 1996 | 1997 | 1983 | 1977 | 1997 | 1997 | 1999 | 1996 | 1999 |
| Lowest Precipitation (in.) | 0.44 | 0.80 | 1.18 | 0.39 | 0.04 | 0.39 | 0.00 | 0.00 | 0.00 | 0.14 | 1.30 | 1.57 | 0.00 |
| Year Lowest Occurred | 1985 | 1993 | 1992 | 1977 | 1992 | 1987 | 1984 | 1998 | 1993 | 1988 | 1993 | 1976 | 1984 |
| Heating Degree Days (F) | 803. | 630. | 567. | 425. | 262. | 114. | 38. | 24. | 109. | 355. | 606. | 796. | 4729. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 17. | 43. | 146. | 140. | 61. | 2. | 0. | 0. | 409. |