| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 62.3 | 65.8 | 67.9 | 72.6 | 77.1 | 81.7 | 84.2 | 84.1 | 83.5 | 78.9 | 68.3 | 62.1 | 74.0 |
| Highest Mean Max. Temperature (F) | 69.0 | 72.0 | 74.2 | 79.9 | 85.1 | 89.1 | 88.8 | 88.6 | 91.4 | 84.3 | 74.1 | 70.3 | 75.8 |
| Year Highest Occurred | 1976 | 1977 | 1972 | 1987 | 1984 | 1981 | 1984 | 1969 | 1984 | 1965 | 1989 | 1980 | 1976 |
| Lowest Mean Max. Temperature (F) | 56.2 | 59.2 | 62.1 | 59.8 | 71.0 | 75.8 | 79.4 | 82.1 | 75.9 | 73.0 | 64.0 | 56.4 | 72.2 |
| Year Lowest Occurred | 1979 | 1969 | 1982 | 1967 | 1977 | 1965 | 1987 | 1970 | 1986 | 1972 | 1972 | 1984 | 1982 |
| Mean Temperature (F) | 48.2 | 51.6 | 53.7 | 56.7 | 61.1 | 65.3 | 67.5 | 67.7 | 66.2 | 61.7 | 53.4 | 48.3 | 58.5 |
| Highest Mean Temperature (F) | 55.0 | 57.5 | 58.8 | 62.9 | 64.6 | 69.1 | 70.5 | 70.0 | 71.1 | 64.7 | 56.7 | 52.7 | 60.0 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1989 | 1984 | 1985 | 1990 | 1983 | 1984 | 1987 | 1967 | 1977 | 1989 |
| Lowest Mean Temperature (F) | 44.0 | 47.3 | 49.7 | 49.1 | 57.1 | 62.1 | 64.7 | 64.8 | 62.0 | 57.1 | 50.1 | 43.6 | 56.4 |
| Year Lowest Occurred | 1982 | 1974 | 1973 | 1967 | 1977 | 1965 | 1975 | 1975 | 1986 | 1971 | 1982 | 1990 | 1975 |
| Mean Min. Temperature (F) | 34.1 | 37.4 | 39.5 | 40.8 | 45.0 | 48.8 | 50.8 | 51.3 | 48.9 | 44.4 | 38.4 | 34.5 | 42.8 |
| Highest Mean Min. Temperature (F) | 42.6 | 44.9 | 47.5 | 46.8 | 49.1 | 52.1 | 54.8 | 55.2 | 55.8 | 50.6 | 43.4 | 42.3 | 45.5 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1989 | 1987 | 1985 | 1985 | 1990 | 1989 | 1987 | 1966 | 1964 | 1986 |
| Lowest Mean Min. Temperature (F) | 26.1 | 28.4 | 33.3 | 33.6 | 41.7 | 45.2 | 45.7 | 46.1 | 44.3 | 39.0 | 32.8 | 27.5 | 39.3 |
| Year Lowest Occurred | 1975 | 1974 | 1977 | 1970 | 1975 | 1984 | 1975 | 1975 | 1970 | 1971 | 1975 | 1990 | 1975 |
| Mean Precipitation (in.) | 2.30 | 2.02 | 1.98 | 0.84 | 0.14 | 0.05 | 0.01 | 0.05 | 0.28 | 0.46 | 1.51 | 1.80 | 11.44 |
| Highest Precipitation (in.) | 6.77 | 6.47 | 6.96 | 3.26 | 1.02 | 0.55 | 0.20 | 1.14 | 2.56 | 1.85 | 5.28 | 4.52 | 26.41 |
| Year Highest Occurred | 1969 | 1973 | 1983 | 1967 | 1977 | 1972 | 1980 | 1976 | 1976 | 1987 | 1965 | 1977 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 4.19 |
| Year Lowest Occurred | 1976 | 1977 | 1972 | 1985 | 1985 | 1990 | 1990 | 1990 | 1988 | 1990 | 1962 | 1989 | 1990 |
| Heating Degree Days (F) | 521. | 375. | 350. | 269. | 141. | 55. | 23. | 6. | 50. | 128. | 348. | 518. | 2784. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 20. | 20. | 64. | 100. | 90. | 86. | 26. | 0. | 0. | 406. |