| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 45.0 | 47.4 | 51.3 | 56.2 | 61.9 | 65.7 | 70.4 | 71.1 | 66.8 | 57.4 | 49.1 | 44.6 | 57.2 |
| Highest Mean Max. Temperature (F) | 49.4 | 52.2 | 56.4 | 60.2 | 66.3 | 71.9 | 77.9 | 76.5 | 71.8 | 61.4 | 53.4 | 47.9 | 77.9 |
| Year Highest Occurred | 1994 | 1992 | 1992 | 1989 | 1993 | 1992 | 1985 | 1986 | 1974 | 1987 | 1995 | 1976 | 1985 |
| Lowest Mean Max. Temperature (F) | 40.0 | 40.7 | 46.0 | 51.6 | 58.6 | 61.0 | 66.9 | 65.1 | 61.8 | 54.2 | 39.7 | 38.2 | 38.2 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1972 | 1996 | 1981 | 1982 | 1976 | 1978 | 1984 | 1985 | 1990 | 1990 |
| Mean Temperature (F) | 41.4 | 43.1 | 45.8 | 49.5 | 54.4 | 57.9 | 61.6 | 62.2 | 58.8 | 51.5 | 45.2 | 41.2 | 51.1 |
| Highest Mean Temperature (F) | 45.5 | 46.7 | 49.5 | 52.1 | 58.3 | 62.3 | 64.9 | 65.0 | 61.9 | 53.7 | 48.6 | 45.7 | 65.0 |
| Year Highest Occurred | 1994 | 1992 | 1992 | 1989 | 1993 | 1992 | 1985 | 1986 | 1974 | 1992 | 1995 | 1980 | 1986 |
| Lowest Mean Temperature (F) | 36.1 | 35.9 | 41.5 | 45.5 | 51.9 | 54.7 | 59.5 | 59.1 | 55.5 | 49.1 | 35.4 | 34.8 | 34.8 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1972 | 1999 | 1971 | 1982 | 1976 | 1972 | 1984 | 1985 | 1990 | 1990 |
| Mean Min. Temperature (F) | 37.8 | 38.7 | 40.3 | 42.7 | 46.8 | 50.1 | 52.8 | 53.3 | 50.7 | 45.6 | 41.2 | 37.8 | 44.8 |
| Highest Mean Min. Temperature (F) | 42.2 | 42.5 | 43.5 | 45.4 | 50.2 | 52.7 | 54.7 | 54.8 | 52.9 | 48.9 | 44.4 | 44.1 | 54.8 |
| Year Highest Occurred | 1983 | 1991 | 1983 | 1990 | 1993 | 1992 | 1995 | 1990 | 1997 | 1988 | 1987 | 1980 | 1990 |
| Lowest Mean Min. Temperature (F) | 32.3 | 31.1 | 36.9 | 39.5 | 44.5 | 47.4 | 51.3 | 51.2 | 48.3 | 44.0 | 31.1 | 31.3 | 31.1 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1972 | 1999 | 1976 | 1971 | 1973 | 1972 | 1984 | 1985 | 1990 | 1989 |
| Mean Precipitation (in.) | 2.18 | 1.62 | 1.69 | 1.50 | 1.58 | 1.27 | 1.00 | 0.89 | 1.04 | 1.43 | 2.61 | 2.61 | 19.42 |
| Highest Precipitation (in.) | 3.73 | 3.81 | 2.97 | 3.41 | 2.83 | 3.15 | 2.93 | 2.80 | 3.18 | 4.45 | 4.81 | 5.28 | 5.28 |
| Year Highest Occurred | 1974 | 1999 | 1971 | 1972 | 1977 | 1980 | 1974 | 1975 | 1983 | 1997 | 1995 | 1971 | 1971 |
| Lowest Precipitation (in.) | 0.25 | 0.30 | 0.47 | 0.58 | 0.33 | 0.14 | 0.04 | 0.04 | 0.07 | 0.01 | 0.62 | 0.41 | 0.01 |
| Year Lowest Occurred | 1985 | 1977 | 1996 | 1989 | 1972 | 1987 | 1984 | 1998 | 1989 | 1987 | 1976 | 1985 | 1987 |
| Heating Degree Days (F) | 732. | 616. | 594. | 466. | 330. | 217. | 116. | 107. | 195. | 418. | 595. | 738. | 5124. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 3. | 10. | 21. | 6. | 0. | 0. | 0. | 40. |