| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 59.0 | 64.6 | 72.6 | 80.1 | 88.7 | 97.7 | 97.2 | 95.1 | 87.9 | 80.0 | 67.8 | 59.9 | 79.2 |
| Highest Mean Max. Temperature (F) | 65.5 | 73.1 | 79.7 | 87.4 | 99.9 | 106.1 | 103.6 | 101.7 | 95.7 | 87.1 | 74.3 | 66.9 | 106.1 |
| Year Highest Occurred | 1986 | 1976 | 1974 | 1989 | 1996 | 1990 | 1994 | 1994 | 1992 | 1979 | 1981 | 1981 | 1990 |
| Lowest Mean Max. Temperature (F) | 50.3 | 57.1 | 65.5 | 73.5 | 80.7 | 91.4 | 92.3 | 89.4 | 81.8 | 72.9 | 58.1 | 52.4 | 50.3 |
| Year Lowest Occurred | 1979 | 1978 | 1987 | 1990 | 1987 | 2000 | 1976 | 1990 | 1991 | 1986 | 2000 | 1986 | 1979 |
| Mean Temperature (F) | 43.6 | 48.5 | 55.5 | 63.5 | 72.4 | 81.0 | 82.7 | 81.1 | 74.0 | 64.6 | 52.2 | 44.5 | 63.6 |
| Highest Mean Temperature (F) | 48.0 | 54.5 | 60.8 | 69.2 | 81.2 | 89.0 | 87.0 | 86.4 | 79.0 | 68.8 | 56.7 | 49.7 | 89.0 |
| Year Highest Occurred | 1999 | 1976 | 1974 | 1989 | 1996 | 1990 | 1980 | 1994 | 1998 | 1992 | 1999 | 1977 | 1990 |
| Lowest Mean Temperature (F) | 37.2 | 43.4 | 50.2 | 57.4 | 67.6 | 77.8 | 79.1 | 77.6 | 68.7 | 58.6 | 45.1 | 38.7 | 37.2 |
| Year Lowest Occurred | 1979 | 1978 | 1987 | 1973 | 1987 | 1988 | 1976 | 1990 | 1974 | 1976 | 1976 | 1983 | 1979 |
| Mean Min. Temperature (F) | 28.1 | 32.3 | 38.4 | 46.8 | 56.1 | 64.3 | 68.1 | 67.0 | 60.0 | 49.2 | 36.5 | 29.0 | 48.0 |
| Highest Mean Min. Temperature (F) | 32.0 | 37.6 | 41.9 | 51.3 | 62.5 | 71.9 | 71.7 | 71.1 | 64.5 | 53.2 | 42.1 | 34.1 | 71.9 |
| Year Highest Occurred | 1993 | 1995 | 1974 | 1981 | 1996 | 1990 | 2000 | 1994 | 1998 | 1983 | 1978 | 1994 | 1990 |
| Lowest Mean Min. Temperature (F) | 23.7 | 27.7 | 32.8 | 40.9 | 51.0 | 61.2 | 65.2 | 64.1 | 55.5 | 43.4 | 29.4 | 22.9 | 22.9 |
| Year Lowest Occurred | 1977 | 1974 | 1996 | 1973 | 1975 | 1973 | 1975 | 1971 | 1974 | 1976 | 1976 | 1989 | 1989 |
| Mean Precipitation (in.) | 0.32 | 0.31 | 0.21 | 0.55 | 1.14 | 1.67 | 2.23 | 2.34 | 1.96 | 0.84 | 0.40 | 0.54 | 12.51 |
| Highest Precipitation (in.) | 1.10 | 1.45 | 1.31 | 1.69 | 4.98 | 6.02 | 5.62 | 6.39 | 6.46 | 2.51 | 1.41 | 3.81 | 6.46 |
| Year Highest Occurred | 1990 | 1989 | 1988 | 1981 | 1992 | 2000 | 1990 | 1971 | 1980 | 1986 | 2000 | 1991 | 1980 |
| Lowest Precipitation (in.) | 0.01 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 0.11 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1996 | 2000 | 1996 | 1991 | 1996 | 1994 | 1987 | 1994 | 2000 | 1991 | 1999 | 1973 | 2000 |
| Heating Degree Days (F) | 665. | 463. | 301. | 124. | 29. | 0. | 0. | 0. | 8. | 85. | 391. | 636. | 2702. |
| Cooling Degree Days (F) | 0. | 0. | 7. | 77. | 259. | 480. | 548. | 499. | 276. | 73. | 5. | 0. | 2224. |