| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 46.1 | 51.0 | 55.3 | 59.7 | 66.3 | 73.3 | 79.8 | 80.3 | 74.5 | 63.9 | 52.8 | 46.2 | 62.4 |
| Highest Mean Max. Temperature (F) | 51.0 | 57.9 | 60.9 | 66.5 | 71.2 | 78.0 | 87.1 | 89.2 | 83.4 | 73.2 | 55.9 | 51.1 | 65.4 |
| Year Highest Occurred | 1986 | 1968 | 1986 | 1989 | 1987 | 1986 | 1985 | 1967 | 1974 | 1987 | 1976 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 38.7 | 43.8 | 50.6 | 54.7 | 59.2 | 66.4 | 73.0 | 73.9 | 68.8 | 59.0 | 44.6 | 40.2 | 60.0 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1975 | 1962 | 1971 | 1963 | 1976 | 1978 | 1984 | 1985 | 1990 | 1964 |
| Mean Temperature (F) | 39.2 | 42.7 | 45.9 | 49.6 | 55.2 | 61.5 | 66.1 | 66.3 | 61.5 | 52.7 | 45.1 | 39.7 | 52.1 |
| Highest Mean Temperature (F) | 43.3 | 47.9 | 51.0 | 55.0 | 59.6 | 65.7 | 70.4 | 71.0 | 67.0 | 57.2 | 48.1 | 44.1 | 54.2 |
| Year Highest Occurred | 1967 | 1968 | 1986 | 1989 | 1987 | 1969 | 1985 | 1967 | 1974 | 1988 | 1983 | 1966 | 1987 |
| Lowest Mean Temperature (F) | 31.4 | 35.5 | 42.2 | 45.3 | 51.4 | 57.0 | 62.3 | 62.6 | 56.9 | 49.3 | 37.9 | 33.4 | 50.3 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1962 | 1971 | 1963 | 1969 | 1970 | 1971 | 1985 | 1990 | 1964 |
| Mean Min. Temperature (F) | 32.4 | 34.4 | 36.5 | 39.5 | 44.1 | 49.6 | 52.4 | 52.3 | 48.4 | 41.4 | 37.4 | 33.1 | 41.8 |
| Highest Mean Min. Temperature (F) | 37.8 | 39.4 | 41.3 | 43.5 | 48.0 | 54.8 | 54.5 | 55.5 | 52.4 | 46.4 | 42.1 | 38.6 | 43.7 |
| Year Highest Occurred | 1967 | 1983 | 1983 | 1989 | 1987 | 1969 | 1983 | 1977 | 1990 | 1988 | 1983 | 1966 | 1983 |
| Lowest Mean Min. Temperature (F) | 23.7 | 27.2 | 32.8 | 35.3 | 41.6 | 45.6 | 49.9 | 48.2 | 43.6 | 37.7 | 30.3 | 25.4 | 39.6 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1967 | 1965 | 1965 | 1962 | 1973 | 1970 | 1970 | 1978 | 1985 | 1985 |
| Mean Precipitation (in.) | 5.99 | 4.56 | 4.14 | 2.75 | 2.22 | 1.65 | 0.67 | 0.95 | 1.81 | 3.19 | 6.18 | 6.94 | 41.05 |
| Highest Precipitation (in.) | 11.72 | 10.24 | 7.46 | 4.78 | 4.59 | 5.35 | 2.68 | 4.17 | 3.61 | 6.88 | 13.04 | 13.84 | 57.63 |
| Year Highest Occurred | 1970 | 1961 | 1961 | 1982 | 1984 | 1984 | 1983 | 1968 | 1982 | 1968 | 1973 | 1964 | 1968 |
| Lowest Precipitation (in.) | 0.45 | 0.83 | 1.09 | 0.64 | 0.89 | 0.30 | 0.00 | 0.00 | 0.00 | 0.20 | 1.67 | 1.48 | 27.15 |
| Year Lowest Occurred | 1985 | 1964 | 1965 | 1977 | 1982 | 1987 | 1984 | 1970 | 1975 | 1988 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 800. | 624. | 592. | 462. | 304. | 135. | 43. | 61. | 141. | 381. | 597. | 784. | 4924. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 30. | 77. | 101. | 36. | 0. | 0. | 0. | 244. |