| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 57.9 | 61.3 | 65.5 | 73.2 | 81.0 | 90.1 | 88.6 | 85.6 | 83.0 | 75.7 | 65.6 | 58.5 | 73.8 |
| Highest Mean Max. Temperature (F) | 65.2 | 65.6 | 74.1 | 82.3 | 86.5 | 95.8 | 91.7 | 91.9 | 87.0 | 80.6 | 70.1 | 64.8 | 76.9 |
| Year Highest Occurred | 1986 | 1989 | 1972 | 1989 | 1984 | 1990 | 1979 | 1962 | 1979 | 1979 | 1981 | 1981 | 1989 |
| Lowest Mean Max. Temperature (F) | 51.3 | 54.2 | 57.5 | 66.4 | 77.2 | 86.2 | 84.4 | 82.0 | 79.0 | 69.5 | 61.3 | 52.5 | 72.0 |
| Year Lowest Occurred | 1979 | 1966 | 1973 | 1983 | 1977 | 1965 | 1976 | 1990 | 1964 | 1984 | 1972 | 1978 | 1964 |
| Mean Temperature (F) | 42.6 | 45.0 | 48.7 | 55.2 | 62.5 | 71.6 | 74.5 | 72.1 | 68.0 | 59.2 | 49.4 | 43.3 | 57.7 |
| Highest Mean Temperature (F) | 47.1 | 49.0 | 55.0 | 62.0 | 68.0 | 77.4 | 76.9 | 75.6 | 70.6 | 62.8 | 52.8 | 48.2 | 59.8 |
| Year Highest Occurred | 1969 | 1989 | 1972 | 1989 | 1984 | 1990 | 1980 | 1962 | 1983 | 1987 | 1965 | 1977 | 1989 |
| Lowest Mean Temperature (F) | 37.9 | 38.3 | 43.7 | 49.3 | 59.3 | 66.9 | 71.7 | 68.8 | 65.7 | 54.6 | 45.4 | 39.8 | 55.6 |
| Year Lowest Occurred | 1964 | 1964 | 1962 | 1975 | 1975 | 1965 | 1975 | 1968 | 1985 | 1971 | 1972 | 1978 | 1964 |
| Mean Min. Temperature (F) | 27.2 | 28.6 | 31.9 | 37.1 | 43.9 | 53.0 | 60.3 | 58.5 | 53.0 | 42.5 | 33.2 | 28.1 | 41.4 |
| Highest Mean Min. Temperature (F) | 32.2 | 34.3 | 37.8 | 41.6 | 49.4 | 59.0 | 62.8 | 61.3 | 57.7 | 47.8 | 36.8 | 33.3 | 43.2 |
| Year Highest Occurred | 1981 | 1980 | 1978 | 1989 | 1984 | 1990 | 1980 | 1988 | 1983 | 1977 | 1965 | 1977 | 1981 |
| Lowest Mean Min. Temperature (F) | 20.7 | 20.1 | 27.3 | 32.0 | 39.7 | 47.5 | 56.9 | 55.6 | 50.3 | 37.5 | 28.4 | 24.1 | 39.2 |
| Year Lowest Occurred | 1964 | 1964 | 1969 | 1975 | 1975 | 1965 | 1975 | 1968 | 1965 | 1970 | 1979 | 1974 | 1964 |
| Mean Precipitation (in.) | 1.15 | 0.92 | 0.90 | 0.43 | 0.18 | 0.52 | 4.19 | 3.78 | 2.04 | 1.29 | 0.84 | 1.59 | 17.83 |
| Highest Precipitation (in.) | 3.69 | 2.93 | 3.67 | 1.90 | 0.64 | 2.24 | 7.65 | 7.20 | 7.47 | 5.13 | 3.02 | 8.21 | 28.41 |
| Year Highest Occurred | 1979 | 1978 | 1983 | 1988 | 1987 | 1961 | 1964 | 1984 | 1983 | 1977 | 1978 | 1965 | 1983 |
| Lowest Precipitation (in.) | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.16 | 0.34 | 0.04 | 0.00 | 0.00 | 0.00 | 11.47 |
| Year Lowest Occurred | 1970 | 1984 | 1984 | 1989 | 1988 | 1975 | 1987 | 1962 | 1968 | 1982 | 1980 | 1981 | 1979 |
| Heating Degree Days (F) | 694. | 560. | 505. | 301. | 112. | 7. | 0. | 0. | 12. | 191. | 468. | 673. | 3523. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 7. | 34. | 205. | 295. | 220. | 102. | 11. | 0. | 0. | 874. |