| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 67.9 | 69.2 | 69.4 | 72.6 | 73.6 | 76.7 | 80.8 | 81.5 | 80.6 | 78.0 | 72.0 | 67.6 | 74.2 |
| Highest Mean Max. Temperature (F) | 74.8 | 75.4 | 75.2 | 77.7 | 80.8 | 84.6 | 86.5 | 89.2 | 89.0 | 83.9 | 79.2 | 75.2 | 77.0 |
| Year Highest Occurred | 1961 | 1977 | 1984 | 1989 | 1984 | 1981 | 1972 | 1971 | 1984 | 1965 | 1976 | 1989 | 1984 |
| Lowest Mean Max. Temperature (F) | 61.7 | 61.3 | 64.7 | 64.7 | 69.7 | 71.2 | 74.8 | 76.5 | 74.1 | 72.0 | 64.8 | 60.1 | 71.3 |
| Year Lowest Occurred | 1979 | 1962 | 1962 | 1967 | 1980 | 1965 | 1987 | 1987 | 1961 | 1975 | 1962 | 1987 | 1987 |
| Mean Temperature (F) | 54.6 | 55.7 | 56.1 | 58.9 | 61.2 | 64.5 | 67.8 | 68.7 | 67.6 | 64.1 | 58.2 | 54.3 | 61.0 |
| Highest Mean Temperature (F) | 60.0 | 60.4 | 60.3 | 64.1 | 66.0 | 70.6 | 72.1 | 73.9 | 75.0 | 68.8 | 63.9 | 58.8 | 63.0 |
| Year Highest Occurred | 1986 | 1963 | 1988 | 1989 | 1978 | 1981 | 1984 | 1971 | 1984 | 1983 | 1976 | 1980 | 1983 |
| Lowest Mean Temperature (F) | 50.4 | 51.2 | 52.4 | 51.8 | 57.1 | 60.0 | 63.2 | 64.2 | 63.4 | 59.2 | 53.3 | 48.7 | 58.5 |
| Year Lowest Occurred | 1973 | 1969 | 1962 | 1967 | 1964 | 1965 | 1987 | 1976 | 1986 | 1975 | 1975 | 1971 | 1975 |
| Mean Min. Temperature (F) | 41.2 | 42.2 | 42.8 | 45.2 | 48.7 | 52.3 | 54.7 | 55.9 | 54.5 | 50.0 | 44.2 | 41.0 | 47.7 |
| Highest Mean Min. Temperature (F) | 48.6 | 48.8 | 50.7 | 50.7 | 53.1 | 56.5 | 59.7 | 60.9 | 61.0 | 56.1 | 50.0 | 45.3 | 50.7 |
| Year Highest Occurred | 1980 | 1980 | 1978 | 1990 | 1979 | 1981 | 1988 | 1983 | 1984 | 1987 | 1967 | 1980 | 1983 |
| Lowest Mean Min. Temperature (F) | 36.1 | 37.2 | 38.6 | 38.8 | 43.5 | 48.7 | 50.6 | 47.8 | 49.0 | 44.3 | 38.7 | 36.5 | 45.3 |
| Year Lowest Occurred | 1972 | 1966 | 1964 | 1967 | 1964 | 1965 | 1965 | 1976 | 1970 | 1976 | 1975 | 1971 | 1964 |
| Mean Precipitation (in.) | 3.72 | 3.63 | 2.91 | 1.07 | 0.14 | 0.03 | 0.01 | 0.09 | 0.38 | 0.39 | 2.45 | 2.57 | 17.39 |
| Highest Precipitation (in.) | 18.63 | 18.10 | 11.79 | 5.22 | 2.08 | 0.52 | 0.10 | 1.11 | 4.06 | 3.60 | 10.37 | 8.20 | 38.60 |
| Year Highest Occurred | 1969 | 1962 | 1978 | 1967 | 1977 | 1963 | 1969 | 1983 | 1976 | 1983 | 1965 | 1971 | 1978 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 5.02 |
| Year Lowest Occurred | 1976 | 1984 | 1990 | 1990 | 1988 | 1990 | 1990 | 1990 | 1990 | 1990 | 1980 | 1990 | 1989 |
| Heating Degree Days (F) | 327. | 266. | 280. | 199. | 139. | 77. | 35. | 30. | 52. | 82. | 217. | 335. | 2039. |
| Cooling Degree Days (F) | 0. | 6. | 0. | 16. | 21. | 62. | 122. | 145. | 130. | 54. | 13. | 0. | 569. |