| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 36.0 | 43.5 | 53.6 | 62.7 | 71.6 | 79.5 | 87.9 | 87.4 | 77.7 | 63.4 | 45.2 | 35.7 | 62.0 |
| Highest Mean Max. Temperature (F) | 44.9 | 50.6 | 61.3 | 70.4 | 78.5 | 86.2 | 97.8 | 93.6 | 85.3 | 71.3 | 51.8 | 42.4 | 97.8 |
| Year Highest Occurred | 1994 | 1991 | 1992 | 1977 | 1992 | 1992 | 1985 | 1971 | 1990 | 1988 | 1999 | 1979 | 1985 |
| Lowest Mean Max. Temperature (F) | 20.6 | 32.5 | 47.1 | 57.6 | 64.8 | 73.9 | 77.9 | 82.1 | 70.0 | 58.2 | 30.0 | 22.5 | 20.6 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1996 | 1991 | 1993 | 1989 | 1986 | 1995 | 1985 | 1985 | 1979 |
| Mean Temperature (F) | 29.7 | 35.8 | 42.8 | 49.4 | 57.0 | 64.0 | 70.8 | 70.4 | 61.7 | 49.9 | 37.8 | 29.8 | 49.9 |
| Highest Mean Temperature (F) | 37.8 | 41.9 | 47.8 | 54.1 | 62.4 | 69.4 | 77.9 | 75.7 | 67.2 | 56.8 | 43.8 | 36.5 | 77.9 |
| Year Highest Occurred | 1994 | 1991 | 1992 | 1987 | 1993 | 1992 | 1985 | 1971 | 1990 | 1988 | 1999 | 1973 | 1985 |
| Lowest Mean Temperature (F) | 12.4 | 24.7 | 38.2 | 45.4 | 51.6 | 59.4 | 64.0 | 65.4 | 56.9 | 46.8 | 24.3 | 17.8 | 12.4 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1982 | 1996 | 1991 | 1993 | 1995 | 1971 | 1995 | 1985 | 1985 | 1979 |
| Mean Min. Temperature (F) | 23.4 | 28.0 | 32.0 | 36.0 | 42.4 | 48.4 | 53.7 | 53.4 | 45.6 | 36.4 | 30.4 | 23.8 | 37.8 |
| Highest Mean Min. Temperature (F) | 31.8 | 34.0 | 37.0 | 40.0 | 47.6 | 52.9 | 58.5 | 57.7 | 49.0 | 42.3 | 36.4 | 31.1 | 58.5 |
| Year Highest Occurred | 1981 | 1983 | 1986 | 1987 | 1993 | 1982 | 1975 | 1971 | 1990 | 1988 | 1983 | 1973 | 1975 |
| Lowest Mean Min. Temperature (F) | 4.2 | 16.8 | 28.1 | 32.2 | 37.5 | 43.5 | 49.7 | 48.2 | 41.9 | 32.8 | 18.7 | 13.2 | 4.2 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1982 | 1999 | 1976 | 1999 | 1995 | 1972 | 1978 | 1985 | 1985 | 1979 |
| Mean Precipitation (in.) | 1.06 | 0.85 | 1.03 | 0.82 | 0.86 | 0.58 | 0.44 | 0.39 | 0.52 | 0.77 | 1.32 | 1.32 | 9.96 |
| Highest Precipitation (in.) | 2.02 | 1.81 | 2.21 | 1.72 | 2.68 | 1.67 | 2.07 | 2.14 | 1.60 | 2.24 | 3.35 | 3.88 | 3.88 |
| Year Highest Occurred | 1997 | 1983 | 1995 | 1993 | 1980 | 1995 | 1993 | 1990 | 1977 | 1996 | 1973 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.21 | 0.01 | 0.20 | 0.08 | 0.15 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.30 | 0.00 |
| Year Lowest Occurred | 1977 | 1988 | 1994 | 1977 | 1992 | 1989 | 1985 | 2000 | 1999 | 1987 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 1094. | 819. | 688. | 469. | 262. | 106. | 28. | 29. | 159. | 469. | 816. | 1094. | 6033. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 14. | 74. | 208. | 196. | 60. | 0. | 0. | 0. | 552. |