| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 57.5 | 60.5 | 66.1 | 73.3 | 81.4 | 90.2 | 89.1 | 86.2 | 83.5 | 75.3 | 64.8 | 57.8 | 73.8 |
| Highest Mean Max. Temperature (F) | 63.3 | 66.6 | 74.9 | 81.2 | 89.1 | 95.5 | 93.4 | 91.4 | 87.9 | 81.8 | 73.3 | 65.6 | 95.5 |
| Year Highest Occurred | 2000 | 1999 | 1972 | 1989 | 2000 | 1980 | 1980 | 1994 | 2000 | 1979 | 1999 | 1981 | 1980 |
| Lowest Mean Max. Temperature (F) | 49.2 | 54.9 | 58.6 | 66.1 | 77.9 | 87.2 | 84.5 | 81.5 | 79.7 | 68.2 | 58.0 | 49.7 | 49.2 |
| Year Lowest Occurred | 1992 | 1998 | 1973 | 1973 | 1987 | 1979 | 1999 | 1988 | 1976 | 1984 | 2000 | 1997 | 1992 |
| Mean Temperature (F) | 44.0 | 46.3 | 50.7 | 56.7 | 64.3 | 73.3 | 74.8 | 72.9 | 69.7 | 61.0 | 50.5 | 44.3 | 59.0 |
| Highest Mean Temperature (F) | 48.3 | 51.8 | 57.3 | 62.8 | 69.7 | 78.1 | 78.1 | 78.1 | 74.4 | 65.7 | 56.9 | 49.7 | 78.1 |
| Year Highest Occurred | 1986 | 1996 | 1972 | 1989 | 2000 | 1994 | 1980 | 1995 | 1998 | 1995 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 39.7 | 42.8 | 44.7 | 50.6 | 61.2 | 70.2 | 71.7 | 69.9 | 66.2 | 55.6 | 45.0 | 39.6 | 39.6 |
| Year Lowest Occurred | 1992 | 1990 | 1973 | 1983 | 1971 | 1991 | 1986 | 1990 | 1985 | 1976 | 2000 | 1997 | 1997 |
| Mean Min. Temperature (F) | 30.4 | 32.1 | 35.2 | 40.0 | 47.2 | 56.4 | 60.5 | 59.6 | 55.8 | 46.7 | 36.2 | 30.8 | 44.2 |
| Highest Mean Min. Temperature (F) | 34.8 | 40.2 | 40.5 | 44.4 | 52.9 | 60.9 | 63.7 | 64.9 | 61.6 | 51.0 | 43.2 | 35.0 | 64.9 |
| Year Highest Occurred | 1993 | 1996 | 1997 | 1989 | 1997 | 1996 | 1998 | 1995 | 1998 | 1995 | 1995 | 1995 | 1995 |
| Lowest Mean Min. Temperature (F) | 25.2 | 26.8 | 30.8 | 34.5 | 43.2 | 52.7 | 58.6 | 56.4 | 51.8 | 41.9 | 31.7 | 26.5 | 25.2 |
| Year Lowest Occurred | 1987 | 1971 | 1977 | 1975 | 1971 | 1991 | 1983 | 1978 | 1985 | 1976 | 1992 | 1974 | 1987 |
| Mean Precipitation (in.) | 1.56 | 1.34 | 1.34 | 0.47 | 0.44 | 0.94 | 4.12 | 3.83 | 1.91 | 1.73 | 1.31 | 1.96 | 20.95 |
| Highest Precipitation (in.) | 5.44 | 3.09 | 4.03 | 2.39 | 2.02 | 4.70 | 8.70 | 9.88 | 7.40 | 6.19 | 4.47 | 6.21 | 9.88 |
| Year Highest Occurred | 1993 | 1998 | 1998 | 1988 | 1992 | 2000 | 1981 | 1993 | 1983 | 2000 | 1983 | 1978 | 1993 |
| Lowest Precipitation (in.) | 0.01 | 0.00 | 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 | 1999 | 1999 | 1984 | 2000 | 2000 | 1995 | 1994 | 1994 | 1994 | 1999 | 1999 | 1996 | 1999 |
| Heating Degree Days (F) | 653. | 523. | 447. | 266. | 90. | 3. | 0. | 2. | 18. | 166. | 435. | 642. | 3245. |
| Cooling Degree Days (F) | 0. | 0. | 1. | 14. | 68. | 253. | 304. | 247. | 159. | 42. | 1. | 0. | 1089. |