| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 57.2 | 61.6 | 64.0 | 68.4 | 73.0 | 76.9 | 78.4 | 78.3 | 77.6 | 72.9 | 64.1 | 57.5 | 69.2 |
| Highest Mean Max. Temperature (F) | 64.0 | 65.7 | 68.3 | 73.6 | 77.6 | 84.6 | 81.4 | 82.5 | 85.2 | 77.0 | 67.9 | 62.8 | 71.4 |
| Year Highest Occurred | 1976 | 1977 | 1988 | 1987 | 1990 | 1981 | 1984 | 1969 | 1984 | 1967 | 1980 | 1975 | 1976 |
| Lowest Mean Max. Temperature (F) | 53.2 | 56.1 | 59.2 | 58.4 | 66.7 | 71.1 | 72.6 | 73.5 | 72.5 | 69.2 | 58.2 | 52.1 | 66.5 |
| Year Lowest Occurred | 1969 | 1969 | 1962 | 1967 | 1964 | 1965 | 1965 | 1986 | 1986 | 1971 | 1964 | 1965 | 1965 |
| Mean Temperature (F) | 47.5 | 51.3 | 53.6 | 56.5 | 60.6 | 64.7 | 66.4 | 66.5 | 65.1 | 60.4 | 53.4 | 47.7 | 57.8 |
| Highest Mean Temperature (F) | 52.9 | 56.1 | 57.7 | 61.2 | 64.7 | 69.6 | 69.3 | 69.5 | 70.1 | 62.9 | 57.5 | 52.3 | 59.0 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1989 | 1990 | 1981 | 1984 | 1971 | 1984 | 1987 | 1981 | 1977 | 1981 |
| Lowest Mean Temperature (F) | 43.4 | 47.1 | 50.5 | 50.2 | 55.9 | 61.0 | 63.3 | 64.6 | 61.6 | 56.8 | 49.6 | 42.6 | 56.2 |
| Year Lowest Occurred | 1963 | 1990 | 1973 | 1967 | 1964 | 1965 | 1982 | 1970 | 1986 | 1971 | 1964 | 1990 | 1964 |
| Mean Min. Temperature (F) | 37.7 | 41.0 | 43.1 | 44.6 | 48.2 | 52.4 | 54.4 | 54.7 | 52.5 | 47.9 | 42.5 | 37.9 | 46.4 |
| Highest Mean Min. Temperature (F) | 44.3 | 47.9 | 47.9 | 49.4 | 52.4 | 55.7 | 57.2 | 58.4 | 55.3 | 52.3 | 47.1 | 42.7 | 48.0 |
| Year Highest Occurred | 1986 | 1968 | 1978 | 1989 | 1987 | 1969 | 1988 | 1971 | 1971 | 1987 | 1981 | 1977 | 1986 |
| Lowest Mean Min. Temperature (F) | 32.7 | 35.0 | 39.8 | 40.6 | 43.5 | 48.1 | 50.6 | 51.6 | 49.2 | 44.4 | 38.5 | 31.4 | 44.0 |
| Year Lowest Occurred | 1982 | 1964 | 1977 | 1975 | 1977 | 1980 | 1982 | 1982 | 1964 | 1971 | 1978 | 1990 | 1982 |
| Mean Precipitation (in.) | 3.04 | 2.50 | 2.36 | 1.08 | 0.19 | 0.07 | 0.04 | 0.06 | 0.20 | 0.85 | 2.09 | 2.48 | 14.96 |
| Highest Precipitation (in.) | 7.65 | 7.96 | 8.54 | 4.50 | 1.74 | 0.47 | 0.34 | 0.81 | 1.09 | 3.72 | 6.31 | 7.49 | 32.51 |
| Year Highest Occurred | 1969 | 1986 | 1983 | 1967 | 1977 | 1964 | 1980 | 1976 | 1982 | 1972 | 1972 | 1970 | 1983 |
| Lowest Precipitation (in.) | 0.28 | 0.13 | 0.05 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.01 | 7.34 |
| Year Lowest Occurred | 1976 | 1967 | 1988 | 1977 | 1990 | 1989 | 1989 | 1990 | 1988 | 1978 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 543. | 384. | 353. | 260. | 157. | 66. | 34. | 17. | 65. | 148. | 348. | 536. | 2911. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 5. | 20. | 57. | 78. | 64. | 68. | 5. | 0. | 0. | 297. |