| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 55.7 | 59.2 | 61.6 | 68.1 | 77.7 | 86.8 | 93.4 | 92.1 | 86.6 | 77.0 | 63.1 | 56.1 | 73.1 |
| Highest Mean Max. Temperature (F) | 62.9 | 66.8 | 68.6 | 76.7 | 83.7 | 92.2 | 98.2 | 98.4 | 93.0 | 83.5 | 70.7 | 63.5 | 74.9 |
| Year Highest Occurred | 1984 | 1988 | 1972 | 1987 | 1976 | 1985 | 1988 | 1967 | 1974 | 1978 | 1976 | 1976 | 1988 |
| Lowest Mean Max. Temperature (F) | 49.1 | 49.9 | 56.1 | 53.1 | 68.3 | 79.9 | 88.4 | 83.8 | 79.6 | 70.5 | 56.9 | 48.0 | 71.1 |
| Year Lowest Occurred | 1973 | 1969 | 1982 | 1967 | 1977 | 1980 | 1983 | 1976 | 1986 | 1972 | 1973 | 1972 | 1963 |
| Mean Temperature (F) | 43.4 | 46.9 | 49.3 | 54.0 | 62.0 | 70.3 | 76.1 | 74.7 | 69.3 | 60.7 | 50.0 | 43.9 | 58.4 |
| Highest Mean Temperature (F) | 48.7 | 52.8 | 53.9 | 59.7 | 67.2 | 75.2 | 80.9 | 79.3 | 72.9 | 65.2 | 54.8 | 49.5 | 60.1 |
| Year Highest Occurred | 1984 | 1963 | 1986 | 1966 | 1973 | 1981 | 1988 | 1967 | 1975 | 1988 | 1976 | 1983 | 1981 |
| Lowest Mean Temperature (F) | 38.7 | 42.0 | 45.3 | 44.7 | 55.4 | 64.6 | 70.2 | 69.2 | 63.9 | 56.6 | 46.0 | 37.6 | 55.6 |
| Year Lowest Occurred | 1982 | 1969 | 1982 | 1967 | 1977 | 1982 | 1983 | 1976 | 1986 | 1982 | 1985 | 1972 | 1982 |
| Mean Min. Temperature (F) | 31.1 | 34.6 | 36.9 | 39.8 | 46.3 | 53.9 | 58.8 | 57.2 | 52.1 | 44.3 | 37.0 | 31.7 | 43.6 |
| Highest Mean Min. Temperature (F) | 38.4 | 42.4 | 42.8 | 43.7 | 51.1 | 58.3 | 63.6 | 61.1 | 58.3 | 48.4 | 43.2 | 38.6 | 45.4 |
| Year Highest Occurred | 1978 | 1963 | 1978 | 1966 | 1973 | 1977 | 1988 | 1990 | 1985 | 1987 | 1983 | 1983 | 1981 |
| Lowest Mean Min. Temperature (F) | 25.7 | 30.3 | 31.0 | 35.6 | 41.5 | 45.8 | 52.0 | 49.9 | 48.2 | 39.1 | 31.3 | 25.1 | 39.8 |
| Year Lowest Occurred | 1963 | 1985 | 1985 | 1970 | 1982 | 1982 | 1983 | 1982 | 1986 | 1982 | 1978 | 1978 | 1982 |
| Mean Precipitation (in.) | 4.35 | 3.25 | 2.52 | 1.08 | 0.31 | 0.25 | 0.04 | 0.15 | 0.33 | 1.12 | 3.07 | 3.44 | 19.91 |
| Highest Precipitation (in.) | 10.80 | 12.41 | 10.04 | 4.14 | 1.50 | 2.43 | 0.53 | 0.97 | 3.28 | 5.48 | 9.00 | 10.84 | 49.93 |
| Year Highest Occurred | 1978 | 1986 | 1983 | 1983 | 1990 | 1967 | 1974 | 1968 | 1989 | 1962 | 1983 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.17 | 0.00 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.07 | 0.00 | 5.19 |
| Year Lowest Occurred | 1976 | 1964 | 1988 | 1977 | 1987 | 1990 | 1990 | 1989 | 1988 | 1978 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 670. | 507. | 487. | 343. | 141. | 23. | 0. | 0. | 23. | 161. | 450. | 654. | 3459. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 13. | 48. | 182. | 347. | 304. | 152. | 27. | 0. | 0. | 1073. |