| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 42.6 | 49.4 | 58.0 | 68.6 | 76.9 | 87.5 | 93.7 | 91.1 | 82.1 | 71.8 | 56.3 | 44.8 | 68.6 |
| Highest Mean Max. Temperature (F) | 56.5 | 59.7 | 67.0 | 78.2 | 85.0 | 93.5 | 99.1 | 96.7 | 88.3 | 79.3 | 61.2 | 54.4 | 71.4 |
| Year Highest Occurred | 1986 | 1976 | 1986 | 1981 | 1974 | 1981 | 1980 | 1980 | 1977 | 1963 | 1977 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 31.9 | 36.5 | 44.8 | 56.8 | 70.1 | 78.7 | 89.3 | 87.0 | 77.2 | 59.9 | 42.9 | 30.9 | 65.6 |
| Year Lowest Occurred | 1988 | 1982 | 1969 | 1984 | 1983 | 1983 | 1990 | 1968 | 1965 | 1969 | 1972 | 1983 | 1985 |
| Mean Temperature (F) | 27.1 | 33.5 | 41.4 | 52.2 | 61.3 | 71.9 | 77.8 | 75.2 | 65.5 | 53.8 | 39.9 | 29.8 | 52.5 |
| Highest Mean Temperature (F) | 37.7 | 40.9 | 49.1 | 59.1 | 65.8 | 76.8 | 81.7 | 79.3 | 69.8 | 61.1 | 44.7 | 37.0 | 54.8 |
| Year Highest Occurred | 1986 | 1987 | 1986 | 1981 | 1974 | 1981 | 1980 | 1980 | 1963 | 1963 | 1981 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 17.5 | 24.0 | 31.2 | 44.6 | 56.6 | 65.9 | 74.4 | 72.3 | 61.5 | 47.6 | 30.2 | 18.8 | 50.6 |
| Year Lowest Occurred | 1979 | 1978 | 1965 | 1984 | 1983 | 1983 | 1961 | 1965 | 1961 | 1969 | 1972 | 1983 | 1983 |
| Mean Min. Temperature (F) | 11.6 | 17.6 | 24.8 | 35.8 | 45.6 | 56.3 | 61.7 | 59.2 | 49.0 | 35.7 | 23.5 | 14.7 | 36.3 |
| Highest Mean Min. Temperature (F) | 18.9 | 27.4 | 31.2 | 40.9 | 49.3 | 60.0 | 65.3 | 62.5 | 54.7 | 42.9 | 28.4 | 20.7 | 38.8 |
| Year Highest Occurred | 1986 | 1987 | 1986 | 1969 | 1969 | 1981 | 1966 | 1983 | 1963 | 1963 | 1981 | 1984 | 1986 |
| Lowest Mean Min. Temperature (F) | 1.9 | 9.7 | 16.4 | 29.9 | 42.4 | 52.5 | 59.4 | 56.0 | 44.4 | 31.1 | 17.5 | 6.6 | 34.8 |
| Year Lowest Occurred | 1963 | 1989 | 1965 | 1983 | 1968 | 1982 | 1961 | 1974 | 1974 | 1976 | 1972 | 1983 | 1975 |
| Mean Precipitation (in.) | 0.17 | 0.29 | 0.59 | 0.92 | 2.12 | 1.75 | 2.25 | 1.56 | 1.21 | 0.74 | 0.36 | 0.31 | 12.27 |
| Highest Precipitation (in.) | 0.76 | 1.64 | 2.66 | 3.76 | 5.78 | 5.51 | 7.44 | 3.78 | 4.80 | 2.76 | 1.38 | 2.64 | 20.29 |
| Year Highest Occurred | 1990 | 1987 | 1973 | 1980 | 1977 | 1978 | 1990 | 1989 | 1988 | 1984 | 1961 | 1982 | 1990 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.21 | 0.52 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 6.52 |
| Year Lowest Occurred | 1970 | 1973 | 1986 | 1974 | 1974 | 1976 | 1987 | 1974 | 1974 | 1980 | 1988 | 1980 | 1974 |
| Heating Degree Days (F) | 1175. | 882. | 732. | 393. | 147. | 14. | 0. | 0. | 63. | 353. | 753. | 1091. | 5603. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 9. | 33. | 221. | 397. | 316. | 78. | 6. | 0. | 0. | 1060. |