| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 60.5 | 62.5 | 63.3 | 66.3 | 67.9 | 70.3 | 71.3 | 71.8 | 73.3 | 71.9 | 65.8 | 60.3 | 67.1 |
| Highest Mean Max. Temperature (F) | 65.1 | 68.0 | 68.9 | 72.7 | 77.1 | 78.9 | 77.2 | 77.7 | 84.4 | 78.2 | 71.1 | 66.5 | 69.8 |
| Year Highest Occurred | 1976 | 1988 | 1988 | 1987 | 1984 | 1981 | 1983 | 1983 | 1984 | 1965 | 1986 | 1976 | 1984 |
| Lowest Mean Max. Temperature (F) | 56.8 | 56.5 | 59.5 | 57.7 | 63.3 | 63.7 | 67.7 | 68.5 | 66.6 | 67.5 | 60.7 | 54.9 | 64.8 |
| Year Lowest Occurred | 1973 | 1969 | 1962 | 1967 | 1964 | 1967 | 1962 | 1973 | 1962 | 1975 | 1973 | 1971 | 1975 |
| Mean Temperature (F) | 49.4 | 51.8 | 53.0 | 55.3 | 57.6 | 60.5 | 61.8 | 62.5 | 62.6 | 59.9 | 54.3 | 49.3 | 56.5 |
| Highest Mean Temperature (F) | 55.1 | 56.5 | 58.2 | 59.5 | 63.0 | 65.3 | 65.8 | 67.5 | 69.9 | 64.1 | 58.0 | 53.8 | 59.1 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1987 | 1984 | 1981 | 1985 | 1983 | 1984 | 1983 | 1976 | 1977 | 1983 |
| Lowest Mean Temperature (F) | 46.5 | 47.4 | 49.0 | 49.4 | 54.0 | 56.8 | 59.0 | 59.9 | 58.4 | 55.4 | 51.5 | 43.8 | 54.7 |
| Year Lowest Occurred | 1982 | 1989 | 1962 | 1967 | 1964 | 1965 | 1962 | 1970 | 1962 | 1971 | 1985 | 1990 | 1971 |
| Mean Min. Temperature (F) | 38.3 | 41.1 | 42.6 | 44.3 | 47.3 | 50.6 | 52.3 | 53.1 | 51.8 | 47.9 | 42.7 | 38.3 | 45.9 |
| Highest Mean Min. Temperature (F) | 45.2 | 47.2 | 49.9 | 47.7 | 50.9 | 52.9 | 55.8 | 57.3 | 57.3 | 52.3 | 47.4 | 44.7 | 49.1 |
| Year Highest Occurred | 1986 | 1968 | 1978 | 1990 | 1987 | 1985 | 1984 | 1983 | 1983 | 1983 | 1981 | 1977 | 1983 |
| Lowest Mean Min. Temperature (F) | 34.3 | 36.0 | 38.0 | 39.3 | 44.4 | 48.4 | 49.6 | 49.6 | 47.3 | 42.3 | 37.0 | 29.0 | 44.0 |
| Year Lowest Occurred | 1989 | 1964 | 1964 | 1970 | 1962 | 1962 | 1989 | 1963 | 1964 | 1971 | 1990 | 1990 | 1971 |
| Mean Precipitation (in.) | 4.15 | 3.43 | 3.60 | 1.83 | 0.26 | 0.12 | 0.09 | 0.07 | 0.30 | 1.13 | 3.20 | 3.55 | 21.73 |
| Highest Precipitation (in.) | 10.93 | 10.43 | 11.02 | 6.67 | 2.17 | 1.29 | 1.27 | 1.12 | 1.45 | 3.81 | 8.01 | 10.49 | 48.35 |
| Year Highest Occurred | 1969 | 1962 | 1983 | 1967 | 1990 | 1967 | 1974 | 1976 | 1982 | 1962 | 1983 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.23 | 0.18 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.06 | 0.03 | 10.66 |
| Year Lowest Occurred | 1984 | 1964 | 1988 | 1964 | 1987 | 1990 | 1989 | 1990 | 1988 | 1978 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 484. | 370. | 372. | 296. | 233. | 147. | 116. | 101. | 119. | 167. | 321. | 487. | 3213. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 12. | 16. | 23. | 47. | 9. | 0. | 0. | 107. |