| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 54.7 | 61.0 | 65.4 | 73.3 | 83.5 | 92.4 | 98.6 | 97.4 | 91.2 | 80.7 | 65.1 | 55.4 | 76.6 |
| Highest Mean Max. Temperature (F) | 60.6 | 68.8 | 73.6 | 81.1 | 91.3 | 97.4 | 103.2 | 101.8 | 96.2 | 86.9 | 74.2 | 62.0 | 103.2 |
| Year Highest Occurred | 1986 | 1991 | 1997 | 1987 | 1992 | 1981 | 1996 | 1996 | 1991 | 1991 | 1995 | 1979 | 1996 |
| Lowest Mean Max. Temperature (F) | 46.0 | 57.0 | 57.7 | 65.0 | 73.5 | 84.5 | 92.6 | 89.2 | 83.1 | 73.2 | 57.2 | 47.5 | 46.0 |
| Year Lowest Occurred | 1972 | 1971 | 1973 | 1975 | 1998 | 1998 | 1987 | 1976 | 1986 | 1984 | 1972 | 1972 | 1972 |
| Mean Temperature (F) | 46.4 | 51.2 | 54.2 | 58.7 | 66.5 | 74.0 | 79.7 | 78.7 | 74.0 | 65.3 | 53.3 | 46.0 | 62.3 |
| Highest Mean Temperature (F) | 52.4 | 56.2 | 58.8 | 64.1 | 73.6 | 78.4 | 84.1 | 82.1 | 78.8 | 70.1 | 60.3 | 51.3 | 84.1 |
| Year Highest Occurred | 1986 | 1991 | 1997 | 1987 | 1992 | 1981 | 1988 | 1996 | 1991 | 1991 | 1995 | 1995 | 1988 |
| Lowest Mean Temperature (F) | 39.9 | 46.8 | 49.3 | 51.8 | 60.2 | 69.2 | 74.0 | 72.9 | 67.4 | 59.6 | 48.1 | 41.0 | 39.9 |
| Year Lowest Occurred | 1972 | 1971 | 1973 | 1975 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1994 | 1978 | 1972 |
| Mean Min. Temperature (F) | 38.1 | 41.3 | 43.0 | 44.1 | 49.4 | 55.6 | 60.7 | 59.9 | 56.7 | 49.8 | 41.4 | 36.5 | 48.0 |
| Highest Mean Min. Temperature (F) | 45.1 | 46.3 | 49.8 | 48.4 | 55.8 | 60.7 | 65.6 | 63.1 | 61.3 | 54.6 | 46.9 | 43.0 | 65.6 |
| Year Highest Occurred | 1978 | 1992 | 1978 | 1989 | 1992 | 1977 | 1988 | 1988 | 1991 | 1987 | 1997 | 1977 | 1988 |
| Lowest Mean Min. Temperature (F) | 33.4 | 35.6 | 35.8 | 38.5 | 45.2 | 50.8 | 54.4 | 56.1 | 51.5 | 45.4 | 36.8 | 30.7 | 30.7 |
| Year Lowest Occurred | 1975 | 1974 | 1977 | 1975 | 1991 | 1980 | 1983 | 1985 | 1973 | 1971 | 1975 | 1990 | 1990 |
| Mean Precipitation (in.) | 2.78 | 2.73 | 2.86 | 1.04 | 0.42 | 0.21 | 0.02 | 0.02 | 0.27 | 0.84 | 1.60 | 1.92 | 14.71 |
| Highest Precipitation (in.) | 7.72 | 8.11 | 9.38 | 3.79 | 2.11 | 1.59 | 0.21 | 0.26 | 1.63 | 3.16 | 4.32 | 6.27 | 9.38 |
| Year Highest Occurred | 1993 | 2000 | 1991 | 1978 | 1990 | 1998 | 1979 | 1976 | 1982 | 2000 | 1983 | 1996 | 1991 |
| Lowest Precipitation (in.) | 0.08 | 0.12 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1976 | 1997 | 1972 | 1997 | 1997 | 1994 | 2000 | 2000 | 1999 | 1999 | 1995 | 1989 | 1972 |
| Heating Degree Days (F) | 576. | 388. | 342. | 219. | 84. | 6. | 0. | 0. | 10. | 97. | 359. | 591. | 2672. |
| Cooling Degree Days (F) | 0. | 0. | 6. | 30. | 129. | 277. | 454. | 424. | 278. | 104. | 6. | 0. | 1708. |