| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 46.3 | 53.2 | 62.1 | 70.4 | 79.0 | 89.7 | 93.5 | 91.2 | 84.3 | 73.3 | 56.5 | 47.3 | 70.6 |
| Highest Mean Max. Temperature (F) | 60.1 | 64.7 | 71.7 | 78.4 | 86.4 | 95.2 | 97.8 | 96.8 | 89.5 | 77.0 | 67.8 | 57.0 | 97.8 |
| Year Highest Occurred | 1986 | 1999 | 1989 | 1981 | 1996 | 1994 | 1980 | 2000 | 1983 | 1999 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 31.6 | 39.6 | 54.9 | 62.7 | 71.6 | 83.3 | 88.7 | 87.5 | 78.8 | 65.7 | 45.0 | 32.6 | 31.6 |
| Year Lowest Occurred | 1979 | 1978 | 1984 | 1983 | 1995 | 1992 | 1990 | 1992 | 1973 | 1984 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 30.3 | 36.3 | 44.7 | 52.9 | 62.5 | 72.4 | 76.7 | 74.5 | 66.6 | 54.5 | 39.9 | 31.5 | 53.6 |
| Highest Mean Temperature (F) | 40.1 | 43.5 | 50.1 | 58.9 | 67.7 | 76.7 | 79.9 | 78.4 | 71.0 | 56.7 | 47.0 | 39.3 | 79.9 |
| Year Highest Occurred | 1986 | 1999 | 1989 | 1981 | 1996 | 1994 | 1980 | 1995 | 1998 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 17.7 | 27.6 | 39.7 | 47.1 | 57.7 | 68.1 | 73.9 | 71.2 | 62.9 | 50.3 | 31.9 | 20.3 | 17.7 |
| Year Lowest Occurred | 1979 | 1978 | 1984 | 1973 | 1995 | 1992 | 1990 | 1992 | 1973 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 14.2 | 19.3 | 27.2 | 35.4 | 46.0 | 55.0 | 59.8 | 57.8 | 48.9 | 35.7 | 23.3 | 15.6 | 36.5 |
| Highest Mean Min. Temperature (F) | 21.7 | 25.1 | 31.4 | 39.3 | 50.7 | 58.2 | 63.2 | 60.9 | 53.4 | 39.7 | 29.0 | 21.6 | 63.2 |
| Year Highest Occurred | 1999 | 1998 | 2000 | 1981 | 1977 | 1988 | 1999 | 1982 | 1990 | 1972 | 1998 | 1980 | 1999 |
| Lowest Mean Min. Temperature (F) | 3.8 | 11.9 | 22.2 | 30.8 | 42.6 | 51.9 | 55.9 | 54.8 | 43.1 | 30.5 | 17.1 | 8.0 | 3.8 |
| Year Lowest Occurred | 1979 | 1982 | 1996 | 1980 | 1971 | 1976 | 1995 | 1992 | 1993 | 1995 | 1993 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.27 | 0.31 | 0.87 | 1.21 | 1.78 | 1.33 | 2.04 | 1.64 | 0.88 | 0.71 | 0.52 | 0.31 | 11.87 |
| Highest Precipitation (in.) | 0.85 | 1.04 | 2.09 | 4.63 | 4.02 | 3.84 | 6.79 | 5.14 | 2.43 | 2.24 | 1.88 | 1.17 | 6.79 |
| Year Highest Occurred | 1985 | 1987 | 2000 | 1999 | 1995 | 1992 | 1999 | 1997 | 1973 | 1998 | 1972 | 1997 | 1999 |
| Lowest Precipitation (in.) | 0.00 | 0.02 | 0.00 | 0.17 | 0.25 | 0.06 | 0.59 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1977 | 1999 | 1977 | 1981 | 1997 | 1971 | 1980 | 1988 | 1992 | 1995 | 1995 | 1976 | 1977 |
| Heating Degree Days (F) | 1078. | 805. | 632. | 369. | 136. | 10. | 0. | 2. | 54. | 326. | 754. | 1039. | 5205. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 7. | 58. | 229. | 361. | 296. | 102. | 1. | 0. | 0. | 1054. |