| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 56.4 | 61.0 | 66.9 | 75.5 | 85.4 | 95.4 | 100.2 | 98.6 | 91.4 | 78.8 | 65.4 | 57.2 | 77.7 |
| Highest Mean Max. Temperature (F) | 63.9 | 69.4 | 77.4 | 84.5 | 94.0 | 100.3 | 104.0 | 102.8 | 96.8 | 87.0 | 74.7 | 66.0 | 104.0 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1989 | 2000 | 1994 | 1989 | 1996 | 1979 | 1999 | 1999 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 48.4 | 55.0 | 56.9 | 66.6 | 78.4 | 90.1 | 96.3 | 95.4 | 84.2 | 72.2 | 59.0 | 50.5 | 48.4 |
| Year Lowest Occurred | 1979 | 1993 | 1991 | 1975 | 1995 | 1998 | 1999 | 1971 | 1986 | 1972 | 1972 | 1992 | 1979 |
| Mean Temperature (F) | 42.5 | 46.6 | 51.5 | 58.2 | 66.7 | 75.7 | 80.4 | 79.4 | 71.3 | 60.2 | 48.9 | 42.5 | 60.3 |
| Highest Mean Temperature (F) | 47.2 | 52.8 | 57.1 | 66.9 | 73.1 | 80.0 | 84.0 | 82.7 | 74.8 | 65.4 | 55.6 | 49.1 | 84.0 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1992 | 2000 | 1994 | 1989 | 1994 | 1979 | 1988 | 1995 | 1980 | 1989 |
| Lowest Mean Temperature (F) | 38.1 | 41.7 | 45.4 | 50.3 | 61.9 | 71.1 | 77.9 | 76.9 | 66.0 | 55.3 | 40.6 | 36.2 | 36.2 |
| Year Lowest Occurred | 1979 | 1979 | 1991 | 1975 | 1977 | 1998 | 1986 | 1976 | 1986 | 1984 | 2000 | 1990 | 1990 |
| Mean Min. Temperature (F) | 28.6 | 32.1 | 36.0 | 40.8 | 48.0 | 56.0 | 60.5 | 60.1 | 51.1 | 41.5 | 32.4 | 27.7 | 42.9 |
| Highest Mean Min. Temperature (F) | 34.1 | 38.6 | 42.5 | 50.9 | 52.6 | 60.9 | 65.5 | 64.0 | 56.7 | 45.8 | 36.7 | 32.5 | 65.5 |
| Year Highest Occurred | 1980 | 1992 | 1992 | 1992 | 1992 | 1990 | 1990 | 1990 | 1997 | 1992 | 1995 | 1977 | 1990 |
| Lowest Mean Min. Temperature (F) | 24.0 | 26.8 | 28.5 | 34.0 | 43.1 | 52.1 | 55.0 | 56.1 | 47.2 | 37.3 | 21.8 | 21.5 | 21.5 |
| Year Lowest Occurred | 1972 | 1974 | 1977 | 1975 | 1993 | 1998 | 2000 | 1975 | 1973 | 1982 | 2000 | 1990 | 1990 |
| Mean Precipitation (in.) | 1.41 | 1.56 | 1.50 | 0.49 | 0.50 | 0.20 | 0.87 | 0.80 | 0.49 | 0.54 | 0.65 | 0.35 | 9.36 |
| Highest Precipitation (in.) | 5.86 | 4.66 | 6.60 | 1.54 | 1.70 | 1.14 | 3.51 | 2.02 | 2.50 | 2.14 | 2.32 | 1.32 | 6.60 |
| Year Highest Occurred | 1993 | 1980 | 1992 | 1988 | 1995 | 1999 | 1984 | 1997 | 1997 | 2000 | 1996 | 1992 | 1992 |
| Lowest Precipitation (in.) | 0.06 | 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 | 1972 | 1972 | 1999 | 1996 | 2000 | 1996 | 2000 | 1992 | 2000 | 1999 | 1999 | 2000 | 1972 |
| Heating Degree Days (F) | 697. | 516. | 425. | 246. | 78. | 4. | 0. | 0. | 17. | 189. | 484. | 699. | 3355. |
| Cooling Degree Days (F) | 0. | 0. | 5. | 41. | 130. | 324. | 477. | 445. | 205. | 38. | 1. | 0. | 1666. |