| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 51.8 | 55.7 | 58.5 | 62.0 | 67.2 | 71.8 | 76.9 | 78.1 | 76.4 | 67.7 | 56.0 | 50.7 | 64.4 |
| Highest Mean Max. Temperature (F) | 59.1 | 62.9 | 64.4 | 69.0 | 75.8 | 75.0 | 81.4 | 82.1 | 83.3 | 72.9 | 61.5 | 55.6 | 83.3 |
| Year Highest Occurred | 1981 | 1992 | 1986 | 1989 | 1992 | 2000 | 1996 | 1992 | 1974 | 1987 | 1995 | 1979 | 1974 |
| Lowest Mean Max. Temperature (F) | 47.7 | 48.8 | 54.4 | 56.4 | 61.8 | 66.5 | 71.2 | 74.2 | 69.0 | 61.8 | 48.7 | 43.4 | 43.4 |
| Year Lowest Occurred | 1972 | 1989 | 1985 | 1975 | 1977 | 1980 | 1983 | 1976 | 1977 | 1975 | 1994 | 1990 | 1990 |
| Mean Temperature (F) | 43.0 | 46.0 | 48.1 | 50.7 | 55.6 | 60.0 | 64.1 | 64.7 | 62.0 | 55.1 | 47.3 | 42.9 | 53.3 |
| Highest Mean Temperature (F) | 48.1 | 51.2 | 52.5 | 55.7 | 60.9 | 62.6 | 67.0 | 67.3 | 65.6 | 59.8 | 52.8 | 46.9 | 67.3 |
| Year Highest Occurred | 1981 | 1992 | 1986 | 1989 | 1992 | 1992 | 1998 | 1997 | 1995 | 1988 | 1995 | 1995 | 1997 |
| Lowest Mean Temperature (F) | 39.0 | 38.7 | 44.0 | 46.1 | 51.9 | 57.0 | 61.1 | 61.6 | 58.4 | 52.1 | 40.5 | 35.9 | 35.9 |
| Year Lowest Occurred | 1991 | 1989 | 1985 | 1975 | 1977 | 1976 | 1993 | 1973 | 1985 | 1971 | 1994 | 1990 | 1990 |
| Mean Min. Temperature (F) | 34.2 | 36.2 | 37.7 | 39.3 | 43.9 | 48.2 | 51.2 | 51.2 | 47.6 | 42.5 | 38.5 | 35.1 | 42.1 |
| Highest Mean Min. Temperature (F) | 40.5 | 40.4 | 42.2 | 43.5 | 47.5 | 51.1 | 54.8 | 54.0 | 52.0 | 48.6 | 44.1 | 40.3 | 54.8 |
| Year Highest Occurred | 1998 | 1986 | 1993 | 1992 | 1987 | 1978 | 1998 | 1977 | 1995 | 1988 | 1995 | 1981 | 1998 |
| Lowest Mean Min. Temperature (F) | 28.3 | 28.7 | 33.6 | 35.4 | 40.1 | 43.6 | 48.4 | 47.5 | 43.7 | 36.9 | 30.2 | 28.4 | 28.3 |
| Year Lowest Occurred | 1985 | 1989 | 1985 | 1982 | 1976 | 1976 | 1993 | 1985 | 1972 | 1974 | 1993 | 1990 | 1985 |
| Mean Precipitation (in.) | 9.47 | 7.22 | 7.25 | 5.28 | 3.35 | 1.57 | 0.47 | 0.85 | 1.84 | 3.89 | 9.59 | 9.87 | 60.65 |
| Highest Precipitation (in.) | 20.22 | 14.06 | 12.44 | 12.15 | 8.92 | 3.24 | 2.65 | 3.25 | 6.03 | 9.47 | 24.47 | 25.10 | 25.10 |
| Year Highest Occurred | 1995 | 1983 | 1983 | 1996 | 1998 | 1984 | 1983 | 1983 | 1986 | 1975 | 1973 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.92 | 1.73 | 1.66 | 1.86 | 0.00 | 0.15 | 0.00 | 0.00 | 0.00 | 0.15 | 1.13 | 1.65 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 1994 | 1977 | 1982 | 1987 | 1998 | 1998 | 1993 | 1987 | 1976 | 1976 | 1982 |
| Heating Degree Days (F) | 682. | 534. | 523. | 432. | 295. | 155. | 66. | 50. | 118. | 307. | 532. | 686. | 4380. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 2. | 6. | 37. | 39. | 28. | 1. | 0. | 0. | 113. |