| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 55.6 | 61.1 | 64.6 | 69.8 | 75.4 | 81.1 | 84.5 | 83.6 | 81.8 | 74.8 | 63.2 | 55.6 | 70.9 |
| Highest Mean Max. Temperature (F) | 59.2 | 67.0 | 71.9 | 76.2 | 80.7 | 89.9 | 88.9 | 88.1 | 86.8 | 80.8 | 69.9 | 60.4 | 73.0 |
| Year Highest Occurred | 1986 | 1988 | 1988 | 1987 | 1978 | 1981 | 1988 | 1969 | 1984 | 1965 | 1986 | 1969 | 1988 |
| Lowest Mean Max. Temperature (F) | 51.9 | 55.5 | 59.7 | 60.3 | 69.3 | 73.3 | 79.2 | 79.0 | 76.0 | 69.5 | 57.8 | 50.2 | 68.6 |
| Year Lowest Occurred | 1985 | 1969 | 1982 | 1967 | 1961 | 1965 | 1965 | 1980 | 1977 | 1984 | 1982 | 1972 | 1982 |
| Mean Temperature (F) | 47.5 | 51.7 | 53.8 | 57.0 | 61.3 | 65.8 | 67.9 | 67.7 | 66.6 | 61.8 | 54.0 | 47.8 | 58.6 |
| Highest Mean Temperature (F) | 51.9 | 56.8 | 58.2 | 61.4 | 65.2 | 72.3 | 71.8 | 70.3 | 69.8 | 65.7 | 57.9 | 52.8 | 60.4 |
| Year Highest Occurred | 1986 | 1963 | 1988 | 1987 | 1987 | 1981 | 1985 | 1990 | 1990 | 1987 | 1967 | 1969 | 1987 |
| Lowest Mean Temperature (F) | 44.0 | 47.8 | 50.8 | 50.4 | 57.5 | 61.4 | 64.4 | 64.3 | 62.8 | 58.3 | 50.2 | 43.3 | 57.0 |
| Year Lowest Occurred | 1972 | 1989 | 1982 | 1967 | 1964 | 1965 | 1965 | 1980 | 1965 | 1971 | 1982 | 1972 | 1982 |
| Mean Min. Temperature (F) | 39.3 | 42.2 | 43.0 | 44.2 | 47.1 | 50.4 | 51.3 | 51.8 | 51.2 | 48.8 | 44.7 | 40.1 | 46.2 |
| Highest Mean Min. Temperature (F) | 45.2 | 47.8 | 47.4 | 48.9 | 50.5 | 54.6 | 54.7 | 56.4 | 53.7 | 52.9 | 48.2 | 45.2 | 48.1 |
| Year Highest Occurred | 1978 | 1963 | 1978 | 1990 | 1987 | 1981 | 1985 | 1990 | 1963 | 1987 | 1970 | 1969 | 1987 |
| Lowest Mean Min. Temperature (F) | 34.4 | 37.6 | 39.3 | 40.4 | 44.5 | 46.8 | 48.5 | 47.8 | 48.0 | 43.6 | 41.3 | 34.9 | 44.9 |
| Year Lowest Occurred | 1963 | 1964 | 1976 | 1967 | 1964 | 1984 | 1962 | 1973 | 1965 | 1971 | 1978 | 1990 | 1971 |
| Mean Precipitation (in.) | 10.38 | 7.53 | 6.93 | 2.78 | 0.69 | 0.27 | 0.12 | 0.14 | 0.51 | 2.86 | 7.90 | 8.36 | 48.47 |
| Highest Precipitation (in.) | 26.83 | 26.95 | 22.69 | 8.97 | 8.04 | 3.42 | 3.30 | 1.74 | 2.98 | 12.97 | 26.00 | 19.97 | 94.38 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1963 | 1990 | 1967 | 1974 | 1976 | 1977 | 1962 | 1973 | 1969 | 1983 |
| Lowest Precipitation (in.) | 0.33 | 0.27 | 0.06 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.00 | 20.61 |
| Year Lowest Occurred | 1976 | 1964 | 1988 | 1973 | 1987 | 1990 | 1990 | 1990 | 1988 | 1978 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 543. | 372. | 347. | 250. | 134. | 63. | 21. | 14. | 43. | 124. | 330. | 533. | 2774. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 10. | 20. | 87. | 111. | 98. | 91. | 25. | 0. | 0. | 442. |