| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 66.8 | 67.7 | 68.0 | 71.5 | 73.3 | 77.0 | 82.7 | 84.0 | 82.1 | 78.4 | 72.1 | 67.0 | 74.2 |
| Highest Mean Max. Temperature (F) | 75.1 | 72.9 | 75.0 | 76.1 | 79.6 | 85.5 | 86.4 | 90.3 | 88.7 | 83.7 | 79.7 | 73.9 | 76.6 |
| Year Highest Occurred | 1976 | 1988 | 1988 | 1989 | 1978 | 1981 | 1984 | 1967 | 1984 | 1967 | 1977 | 1976 | 1976 |
| Lowest Mean Max. Temperature (F) | 62.2 | 58.9 | 62.6 | 64.7 | 68.8 | 70.2 | 77.4 | 78.4 | 75.7 | 74.3 | 66.7 | 61.0 | 71.3 |
| Year Lowest Occurred | 1974 | 1962 | 1962 | 1967 | 1964 | 1965 | 1987 | 1964 | 1986 | 1962 | 1985 | 1964 | 1964 |
| Mean Temperature (F) | 55.9 | 57.3 | 58.5 | 61.7 | 64.8 | 68.5 | 73.1 | 74.4 | 72.4 | 68.1 | 61.3 | 56.0 | 64.3 |
| Highest Mean Temperature (F) | 60.8 | 60.9 | 64.0 | 66.8 | 68.9 | 75.1 | 76.7 | 80.1 | 79.2 | 72.3 | 66.4 | 61.2 | 66.4 |
| Year Highest Occurred | 1986 | 1980 | 1978 | 1989 | 1978 | 1981 | 1984 | 1967 | 1984 | 1976 | 1977 | 1977 | 1976 |
| Lowest Mean Temperature (F) | 53.4 | 52.7 | 53.6 | 54.6 | 59.5 | 63.1 | 68.2 | 70.9 | 67.4 | 64.9 | 56.1 | 52.6 | 61.3 |
| Year Lowest Occurred | 1974 | 1962 | 1962 | 1967 | 1964 | 1964 | 1965 | 1964 | 1964 | 1962 | 1964 | 1978 | 1964 |
| Mean Min. Temperature (F) | 44.9 | 46.9 | 49.0 | 51.8 | 56.3 | 59.8 | 63.4 | 64.8 | 62.7 | 57.8 | 50.4 | 45.0 | 54.4 |
| Highest Mean Min. Temperature (F) | 50.2 | 51.7 | 56.1 | 57.4 | 59.1 | 64.6 | 66.9 | 69.8 | 69.6 | 62.1 | 56.8 | 53.2 | 57.0 |
| Year Highest Occurred | 1980 | 1980 | 1978 | 1989 | 1976 | 1981 | 1984 | 1967 | 1984 | 1987 | 1967 | 1977 | 1983 |
| Lowest Mean Min. Temperature (F) | 42.0 | 41.6 | 44.5 | 44.4 | 50.2 | 55.0 | 57.9 | 59.4 | 57.8 | 54.5 | 45.2 | 41.6 | 51.2 |
| Year Lowest Occurred | 1966 | 1964 | 1977 | 1967 | 1964 | 1964 | 1962 | 1962 | 1964 | 1969 | 1964 | 1978 | 1964 |
| Mean Precipitation (in.) | 2.47 | 2.47 | 1.96 | 0.68 | 0.17 | 0.04 | 0.01 | 0.11 | 0.29 | 0.27 | 1.65 | 1.68 | 11.80 |
| Highest Precipitation (in.) | 11.24 | 9.40 | 8.75 | 4.42 | 2.32 | 0.52 | 0.21 | 2.03 | 1.45 | 1.63 | 6.05 | 5.29 | 27.67 |
| Year Highest Occurred | 1969 | 1980 | 1983 | 1965 | 1977 | 1963 | 1986 | 1977 | 1976 | 1987 | 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 | 3.00 |
| Year Lowest Occurred | 1976 | 1964 | 1972 | 1985 | 1988 | 1990 | 1990 | 1990 | 1990 | 1990 | 1980 | 1989 | 1989 |
| Heating Degree Days (F) | 285. | 221. | 214. | 134. | 69. | 39. | 0. | 0. | 15. | 24. | 145. | 284. | 1430. |
| Cooling Degree Days (F) | 0. | 5. | 13. | 35. | 63. | 144. | 255. | 295. | 237. | 120. | 34. | 0. | 1201. |