| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 45.0 | 49.5 | 52.7 | 57.2 | 63.9 | 69.9 | 75.2 | 75.2 | 69.3 | 59.7 | 50.5 | 45.1 | 59.4 |
| Highest Mean Max. Temperature (F) | 50.8 | 56.4 | 57.5 | 63.2 | 67.9 | 74.7 | 80.9 | 83.7 | 76.4 | 65.4 | 54.5 | 49.8 | 62.1 |
| Year Highest Occurred | 1986 | 1968 | 1979 | 1977 | 1969 | 1978 | 1985 | 1967 | 1967 | 1987 | 1965 | 1976 | 1987 |
| Lowest Mean Max. Temperature (F) | 36.8 | 43.2 | 46.9 | 52.6 | 57.5 | 62.7 | 70.3 | 70.7 | 63.1 | 56.4 | 40.6 | 40.1 | 57.2 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1970 | 1962 | 1971 | 1986 | 1973 | 1972 | 1984 | 1985 | 1990 | 1964 |
| Mean Temperature (F) | 40.1 | 43.5 | 45.6 | 49.2 | 55.1 | 60.9 | 65.2 | 65.5 | 60.6 | 52.8 | 45.3 | 40.5 | 52.0 |
| Highest Mean Temperature (F) | 45.0 | 48.7 | 49.4 | 53.6 | 58.3 | 64.7 | 68.6 | 71.5 | 65.9 | 56.6 | 49.6 | 45.2 | 53.6 |
| Year Highest Occurred | 1983 | 1977 | 1983 | 1977 | 1972 | 1969 | 1985 | 1967 | 1967 | 1965 | 1965 | 1969 | 1987 |
| Lowest Mean Temperature (F) | 33.1 | 35.9 | 41.3 | 45.8 | 50.4 | 55.9 | 61.7 | 61.6 | 55.4 | 49.7 | 35.8 | 35.3 | 49.9 |
| Year Lowest Occurred | 1969 | 1989 | 1976 | 1975 | 1962 | 1971 | 1986 | 1973 | 1972 | 1984 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 35.2 | 37.4 | 38.5 | 41.2 | 46.3 | 51.9 | 55.2 | 55.7 | 51.9 | 45.8 | 40.1 | 35.8 | 44.6 |
| Highest Mean Min. Temperature (F) | 40.0 | 41.5 | 42.9 | 44.3 | 49.0 | 55.9 | 57.0 | 59.2 | 55.4 | 49.4 | 44.7 | 40.7 | 45.9 |
| Year Highest Occurred | 1978 | 1977 | 1983 | 1990 | 1983 | 1969 | 1975 | 1967 | 1967 | 1965 | 1965 | 1969 | 1967 |
| Lowest Mean Min. Temperature (F) | 29.1 | 28.5 | 34.3 | 38.0 | 42.6 | 49.0 | 53.1 | 52.4 | 47.6 | 42.9 | 30.9 | 30.4 | 42.2 |
| Year Lowest Occurred | 1963 | 1989 | 1976 | 1975 | 1965 | 1971 | 1986 | 1973 | 1972 | 1984 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 5.38 | 3.99 | 3.54 | 2.33 | 1.70 | 1.50 | 0.76 | 1.14 | 1.88 | 3.23 | 5.83 | 5.91 | 37.19 |
| Highest Precipitation (in.) | 9.76 | 9.11 | 7.12 | 4.19 | 3.70 | 3.82 | 2.39 | 4.59 | 5.95 | 7.75 | 10.71 | 11.85 | 50.15 |
| Year Highest Occurred | 1964 | 1961 | 1971 | 1978 | 1977 | 1964 | 1983 | 1975 | 1978 | 1975 | 1990 | 1979 | 1968 |
| Lowest Precipitation (in.) | 0.58 | 0.71 | 0.57 | 0.55 | 0.38 | 0.16 | 0.01 | 0.01 | 0.00 | 0.31 | 0.74 | 1.37 | 25.13 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1977 | 1967 | 1987 | 1967 | 1974 | 1975 | 1987 | 1976 | 1978 | 1985 |
| Heating Degree Days (F) | 772. | 602. | 601. | 474. | 307. | 144. | 58. | 65. | 156. | 378. | 591. | 760. | 4908. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 21. | 64. | 81. | 24. | 0. | 0. | 0. | 190. |