| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 48.9 | 54.1 | 62.2 | 70.6 | 78.6 | 87.4 | 91.0 | 88.7 | 81.8 | 71.8 | 58.4 | 49.8 | 70.3 |
| Highest Mean Max. Temperature (F) | 58.6 | 63.8 | 70.0 | 78.5 | 88.4 | 96.8 | 97.5 | 96.9 | 90.2 | 77.4 | 68.6 | 56.4 | 97.5 |
| Year Highest Occurred | 1986 | 2000 | 1989 | 1981 | 1996 | 1990 | 1998 | 2000 | 2000 | 1975 | 1999 | 1980 | 1998 |
| Lowest Mean Max. Temperature (F) | 35.8 | 38.9 | 57.0 | 61.7 | 73.8 | 80.9 | 86.1 | 82.8 | 72.6 | 62.8 | 46.9 | 35.7 | 35.7 |
| Year Lowest Occurred | 1979 | 1978 | 1998 | 1997 | 1976 | 1989 | 1975 | 1971 | 1974 | 1976 | 1972 | 1983 | 1983 |
| Mean Temperature (F) | 35.8 | 40.6 | 47.9 | 56.2 | 65.2 | 74.3 | 78.2 | 76.3 | 69.1 | 58.2 | 45.1 | 37.0 | 57.0 |
| Highest Mean Temperature (F) | 43.2 | 48.1 | 53.4 | 63.6 | 72.5 | 81.3 | 83.1 | 81.8 | 75.8 | 61.7 | 52.3 | 42.0 | 83.1 |
| Year Highest Occurred | 1986 | 1976 | 1974 | 1981 | 1996 | 1990 | 1980 | 2000 | 1998 | 1973 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 25.6 | 30.4 | 43.5 | 48.9 | 60.4 | 69.4 | 74.3 | 71.9 | 62.5 | 49.6 | 36.8 | 25.3 | 25.3 |
| Year Lowest Occurred | 1979 | 1978 | 1998 | 1997 | 1976 | 1989 | 1972 | 1971 | 1974 | 1976 | 1972 | 1983 | 1983 |
| Mean Min. Temperature (F) | 22.6 | 27.0 | 33.6 | 41.7 | 51.7 | 61.1 | 65.3 | 63.8 | 56.3 | 44.6 | 31.8 | 24.1 | 43.6 |
| Highest Mean Min. Temperature (F) | 27.9 | 32.8 | 39.3 | 48.7 | 57.5 | 65.8 | 68.9 | 66.9 | 61.6 | 49.0 | 36.5 | 30.0 | 68.9 |
| Year Highest Occurred | 1986 | 1987 | 1986 | 1981 | 1974 | 1990 | 1980 | 1977 | 1998 | 1983 | 1973 | 1984 | 1980 |
| Lowest Mean Min. Temperature (F) | 15.4 | 20.7 | 26.8 | 36.0 | 46.6 | 57.4 | 62.5 | 61.0 | 52.2 | 36.5 | 24.4 | 14.8 | 14.8 |
| Year Lowest Occurred | 1979 | 1989 | 1996 | 1997 | 1983 | 1983 | 1976 | 1976 | 1975 | 1976 | 1976 | 1983 | 1983 |
| Mean Precipitation (in.) | 0.63 | 0.55 | 1.13 | 1.33 | 2.50 | 3.28 | 2.68 | 2.94 | 1.88 | 1.50 | 0.68 | 0.61 | 19.71 |
| Highest Precipitation (in.) | 2.67 | 2.08 | 4.14 | 6.45 | 6.02 | 7.57 | 6.23 | 7.55 | 4.96 | 6.48 | 2.08 | 2.24 | 7.57 |
| Year Highest Occurred | 1999 | 1998 | 2000 | 1997 | 1988 | 1992 | 1982 | 1974 | 1985 | 1998 | 1971 | 1991 | 1992 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.01 | 0.00 | 0.04 | 0.12 | 0.16 | 0.28 | 0.03 | 0.26 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1986 | 1999 | 1997 | 1996 | 1984 | 1998 | 2000 | 1983 | 2000 | 1977 | 1999 | 1976 | 1986 |
| Heating Degree Days (F) | 920. | 699. | 542. | 291. | 94. | 7. | 1. | 1. | 56. | 239. | 594. | 874. | 4318. |
| Cooling Degree Days (F) | 0. | 0. | 2. | 18. | 90. | 285. | 405. | 345. | 173. | 26. | 0. | 0. | 1344. |