| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 65.7 | 65.9 | 65.5 | 67.4 | 69.0 | 71.9 | 75.3 | 76.6 | 76.6 | 74.4 | 70.3 | 65.9 | 70.4 |
| Highest Mean Max. Temperature (F) | 72.6 | 71.0 | 71.8 | 72.4 | 73.5 | 79.0 | 78.3 | 80.3 | 83.4 | 79.4 | 75.6 | 71.9 | 71.9 |
| Year Highest Occurred | 1976 | 1988 | 1988 | 1989 | 1978 | 1981 | 1981 | 1983 | 1984 | 1965 | 1989 | 1976 | 1976 |
| Lowest Mean Max. Temperature (F) | 61.1 | 59.3 | 61.3 | 62.9 | 64.9 | 67.8 | 71.6 | 73.1 | 72.0 | 71.1 | 65.8 | 60.1 | 68.1 |
| Year Lowest Occurred | 1974 | 1962 | 1962 | 1975 | 1964 | 1964 | 1965 | 1989 | 1986 | 1962 | 1985 | 1971 | 1962 |
| Mean Temperature (F) | 56.8 | 57.6 | 58.0 | 60.1 | 62.7 | 65.7 | 69.1 | 70.5 | 69.9 | 66.8 | 61.6 | 56.9 | 63.0 |
| Highest Mean Temperature (F) | 62.3 | 61.3 | 62.5 | 64.7 | 66.1 | 71.9 | 71.7 | 73.6 | 76.5 | 69.6 | 65.9 | 60.9 | 64.6 |
| Year Highest Occurred | 1986 | 1980 | 1988 | 1989 | 1984 | 1981 | 1981 | 1983 | 1984 | 1990 | 1976 | 1977 | 1981 |
| Lowest Mean Temperature (F) | 53.6 | 53.0 | 53.6 | 56.0 | 58.5 | 62.2 | 65.7 | 67.7 | 65.8 | 63.9 | 58.6 | 52.4 | 60.8 |
| Year Lowest Occurred | 1966 | 1966 | 1962 | 1967 | 1964 | 1964 | 1965 | 1989 | 1986 | 1971 | 1985 | 1971 | 1964 |
| Mean Min. Temperature (F) | 47.8 | 49.3 | 50.5 | 52.8 | 56.3 | 59.5 | 62.8 | 64.2 | 63.2 | 59.2 | 52.8 | 47.9 | 55.5 |
| Highest Mean Min. Temperature (F) | 53.1 | 54.2 | 55.8 | 57.0 | 59.1 | 64.7 | 65.5 | 67.6 | 69.5 | 62.5 | 57.6 | 54.6 | 57.4 |
| Year Highest Occurred | 1986 | 1968 | 1978 | 1989 | 1984 | 1981 | 1984 | 1984 | 1984 | 1983 | 1967 | 1977 | 1981 |
| Lowest Mean Min. Temperature (F) | 44.0 | 43.8 | 45.9 | 49.1 | 52.0 | 56.5 | 59.7 | 61.8 | 59.5 | 54.9 | 49.4 | 44.6 | 53.2 |
| Year Lowest Occurred | 1966 | 1966 | 1962 | 1967 | 1964 | 1964 | 1965 | 1987 | 1986 | 1971 | 1964 | 1971 | 1964 |
| Mean Precipitation (in.) | 2.40 | 2.51 | 1.98 | 0.72 | 0.14 | 0.03 | 0.01 | 0.15 | 0.31 | 0.34 | 1.76 | 1.66 | 12.01 |
| Highest Precipitation (in.) | 9.60 | 11.07 | 6.37 | 4.52 | 2.55 | 0.29 | 0.15 | 2.47 | 1.91 | 1.79 | 7.47 | 5.70 | 29.46 |
| Year Highest Occurred | 1969 | 1962 | 1983 | 1965 | 1977 | 1964 | 1969 | 1977 | 1983 | 1972 | 1967 | 1971 | 1983 |
| 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 | 4.19 |
| Year Lowest Occurred | 1976 | 1964 | 1972 | 1989 | 1988 | 1990 | 1990 | 1989 | 1990 | 1990 | 1980 | 1989 | 1989 |
| Heating Degree Days (F) | 258. | 215. | 224. | 158. | 96. | 54. | 9. | 5. | 22. | 32. | 127. | 258. | 1458. |
| Cooling Degree Days (F) | 0. | 8. | 7. | 11. | 25. | 75. | 136. | 176. | 169. | 88. | 25. | 7. | 727. |