| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 53.8 | 60.5 | 64.7 | 71.4 | 80.0 | 87.4 | 92.4 | 91.4 | 87.5 | 78.2 | 63.7 | 53.9 | 73.7 |
| Highest Mean Max. Temperature (F) | 59.8 | 67.1 | 71.5 | 77.7 | 88.4 | 92.7 | 99.1 | 96.5 | 92.9 | 85.0 | 73.0 | 59.8 | 99.1 |
| Year Highest Occurred | 1976 | 1988 | 1988 | 1987 | 1997 | 1985 | 1988 | 1996 | 1991 | 1991 | 1995 | 1999 | 1988 |
| Lowest Mean Max. Temperature (F) | 48.2 | 56.6 | 58.1 | 62.2 | 68.7 | 78.8 | 87.7 | 86.3 | 80.2 | 71.7 | 54.7 | 47.0 | 47.0 |
| Year Lowest Occurred | 1983 | 1998 | 1975 | 1975 | 1998 | 1998 | 1999 | 1976 | 1986 | 1972 | 1982 | 1972 | 1972 |
| Mean Temperature (F) | 46.3 | 51.2 | 54.5 | 58.9 | 65.5 | 71.5 | 75.4 | 74.8 | 71.7 | 64.4 | 53.3 | 45.8 | 61.1 |
| Highest Mean Temperature (F) | 51.4 | 55.0 | 58.8 | 63.4 | 71.9 | 75.2 | 80.4 | 78.3 | 75.5 | 68.8 | 59.3 | 51.1 | 80.4 |
| Year Highest Occurred | 1986 | 1991 | 1986 | 1990 | 1997 | 1981 | 1988 | 1996 | 1984 | 1991 | 1995 | 1996 | 1988 |
| Lowest Mean Temperature (F) | 41.1 | 47.1 | 50.1 | 51.3 | 58.7 | 66.7 | 71.8 | 71.9 | 66.2 | 60.8 | 47.2 | 40.6 | 40.6 |
| Year Lowest Occurred | 1972 | 1989 | 1975 | 1975 | 1998 | 1982 | 1987 | 1980 | 1986 | 1971 | 1982 | 1972 | 1972 |
| Mean Min. Temperature (F) | 38.8 | 41.9 | 44.2 | 46.3 | 50.9 | 55.5 | 58.3 | 58.1 | 55.8 | 50.6 | 42.8 | 37.7 | 48.4 |
| Highest Mean Min. Temperature (F) | 45.9 | 46.9 | 49.7 | 50.1 | 55.4 | 58.1 | 61.9 | 61.3 | 59.9 | 54.1 | 47.5 | 45.4 | 61.9 |
| Year Highest Occurred | 1995 | 1986 | 1986 | 1989 | 1997 | 1981 | 1984 | 1983 | 1983 | 1983 | 1981 | 1983 | 1984 |
| Lowest Mean Min. Temperature (F) | 33.5 | 37.0 | 39.3 | 40.3 | 47.3 | 52.3 | 55.4 | 55.2 | 52.1 | 46.3 | 38.4 | 29.7 | 29.7 |
| Year Lowest Occurred | 1972 | 1989 | 1977 | 1975 | 1977 | 1982 | 1987 | 1980 | 1986 | 1971 | 1994 | 1990 | 1990 |
| Mean Precipitation (in.) | 3.84 | 3.54 | 2.80 | 1.02 | 0.53 | 0.20 | 0.05 | 0.06 | 0.36 | 0.89 | 2.19 | 2.45 | 17.93 |
| Highest Precipitation (in.) | 9.14 | 9.95 | 8.13 | 4.21 | 2.98 | 1.26 | 0.79 | 0.65 | 2.78 | 2.61 | 6.27 | 6.39 | 9.95 |
| Year Highest Occurred | 1978 | 1998 | 1995 | 1983 | 1998 | 1993 | 1974 | 1976 | 1989 | 1982 | 1973 | 1996 | 1998 |
| Lowest Precipitation (in.) | 0.16 | 0.20 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1984 | 1995 | 1994 | 1985 | 1992 | 1996 | 2000 | 2000 | 1999 | 1995 | 1995 | 1989 | 1985 |
| Heating Degree Days (F) | 580. | 387. | 335. | 208. | 97. | 10. | 0. | 0. | 11. | 84. | 359. | 595. | 2666. |
| Cooling Degree Days (F) | 0. | 0. | 6. | 24. | 110. | 204. | 320. | 303. | 210. | 66. | 5. | 0. | 1248. |