| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 48.9 | 53.5 | 61.5 | 70.8 | 78.7 | 87.4 | 89.5 | 87.0 | 79.7 | 71.1 | 58.4 | 49.6 | 69.7 |
| Highest Mean Max. Temperature (F) | 57.3 | 62.3 | 70.3 | 77.3 | 86.0 | 97.2 | 96.1 | 92.1 | 86.9 | 77.1 | 65.8 | 59.4 | 71.8 |
| Year Highest Occurred | 1986 | 1976 | 1989 | 1989 | 1974 | 1990 | 1980 | 1983 | 1983 | 1963 | 1965 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 37.6 | 42.6 | 52.0 | 62.4 | 74.5 | 83.1 | 84.8 | 82.0 | 74.4 | 63.8 | 48.4 | 41.8 | 67.9 |
| Year Lowest Occurred | 1979 | 1964 | 1969 | 1973 | 1980 | 1979 | 1975 | 1971 | 1974 | 1969 | 1972 | 1983 | 1961 |
| Mean Temperature (F) | 35.1 | 39.2 | 45.7 | 54.7 | 63.0 | 71.8 | 75.1 | 73.2 | 66.2 | 56.5 | 44.9 | 36.3 | 55.1 |
| Highest Mean Temperature (F) | 42.1 | 46.0 | 52.1 | 59.2 | 68.0 | 79.1 | 80.4 | 76.7 | 70.9 | 62.3 | 51.5 | 44.3 | 56.6 |
| Year Highest Occurred | 1969 | 1976 | 1974 | 1967 | 1974 | 1990 | 1980 | 1983 | 1983 | 1963 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 26.8 | 31.3 | 37.9 | 48.1 | 59.5 | 69.0 | 71.6 | 69.8 | 61.6 | 51.7 | 37.7 | 29.2 | 53.6 |
| Year Lowest Occurred | 1979 | 1964 | 1969 | 1973 | 1983 | 1979 | 1975 | 1966 | 1974 | 1976 | 1972 | 1983 | 1961 |
| Mean Min. Temperature (F) | 21.2 | 24.8 | 29.9 | 38.6 | 47.1 | 56.1 | 60.5 | 59.3 | 52.5 | 41.9 | 31.4 | 23.0 | 40.5 |
| Highest Mean Min. Temperature (F) | 26.9 | 29.9 | 34.7 | 43.4 | 50.8 | 60.9 | 64.6 | 62.5 | 56.0 | 47.5 | 37.1 | 29.1 | 42.3 |
| Year Highest Occurred | 1969 | 1970 | 1967 | 1967 | 1989 | 1990 | 1980 | 1969 | 1990 | 1963 | 1965 | 1980 | 1969 |
| Lowest Mean Min. Temperature (F) | 14.2 | 20.0 | 22.8 | 33.7 | 42.4 | 52.4 | 57.4 | 57.0 | 48.7 | 37.0 | 23.5 | 16.6 | 38.9 |
| Year Lowest Occurred | 1963 | 1964 | 1965 | 1973 | 1983 | 1973 | 1972 | 1967 | 1974 | 1976 | 1976 | 1983 | 1976 |
| Mean Precipitation (in.) | 0.40 | 0.68 | 0.72 | 0.91 | 1.70 | 2.30 | 2.76 | 3.12 | 2.36 | 1.19 | 0.81 | 0.48 | 17.43 |
| Highest Precipitation (in.) | 1.78 | 1.83 | 3.85 | 2.66 | 4.52 | 9.07 | 6.93 | 7.69 | 5.36 | 4.30 | 3.55 | 1.48 | 28.10 |
| Year Highest Occurred | 1983 | 1990 | 1985 | 1970 | 1969 | 1988 | 1972 | 1981 | 1990 | 1974 | 1986 | 1969 | 1988 |
| Lowest Precipitation (in.) | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.24 | 0.21 | 0.00 | 0.00 | 0.00 | 0.00 | 9.53 |
| Year Lowest Occurred | 1988 | 1970 | 1966 | 1972 | 1970 | 1990 | 1986 | 1964 | 1968 | 1990 | 1989 | 1990 | 1964 |
| Heating Degree Days (F) | 927. | 722. | 598. | 315. | 102. | 10. | 0. | 0. | 44. | 271. | 603. | 890. | 4482. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 6. | 40. | 214. | 313. | 257. | 80. | 7. | 0. | 0. | 917. |