| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 57.3 | 62.9 | 71.0 | 79.6 | 87.3 | 92.6 | 95.8 | 94.4 | 88.1 | 79.0 | 67.1 | 59.2 | 77.9 |
| Highest Mean Max. Temperature (F) | 64.5 | 73.3 | 79.3 | 86.7 | 96.2 | 100.1 | 101.6 | 99.5 | 96.1 | 85.6 | 74.1 | 65.1 | 101.6 |
| Year Highest Occurred | 1998 | 1999 | 1974 | 1978 | 1998 | 1998 | 1994 | 1999 | 1977 | 1979 | 1988 | 1977 | 1994 |
| Lowest Mean Max. Temperature (F) | 47.3 | 53.4 | 64.2 | 69.7 | 80.4 | 88.4 | 86.5 | 85.4 | 77.5 | 71.7 | 58.2 | 49.3 | 47.3 |
| Year Lowest Occurred | 1979 | 1978 | 1990 | 1997 | 1990 | 1987 | 1976 | 1971 | 1974 | 1976 | 2000 | 1983 | 1979 |
| Mean Temperature (F) | 42.3 | 47.2 | 54.9 | 63.4 | 72.4 | 78.8 | 81.6 | 80.1 | 73.8 | 63.8 | 51.9 | 44.0 | 62.9 |
| Highest Mean Temperature (F) | 48.4 | 56.9 | 62.9 | 69.6 | 80.6 | 85.2 | 86.8 | 84.1 | 79.6 | 68.9 | 57.7 | 48.5 | 86.8 |
| Year Highest Occurred | 1998 | 2000 | 1974 | 1972 | 2000 | 1998 | 1998 | 1999 | 1977 | 1998 | 1973 | 1984 | 1998 |
| Lowest Mean Temperature (F) | 34.0 | 39.4 | 49.4 | 55.7 | 66.0 | 75.4 | 75.4 | 74.4 | 66.4 | 56.7 | 45.3 | 35.0 | 34.0 |
| Year Lowest Occurred | 1979 | 1978 | 1987 | 1997 | 1990 | 1987 | 1976 | 1971 | 1974 | 1976 | 1976 | 1983 | 1979 |
| Mean Min. Temperature (F) | 27.2 | 31.5 | 38.7 | 47.1 | 57.4 | 64.9 | 67.3 | 65.8 | 59.4 | 48.6 | 36.7 | 28.8 | 47.8 |
| Highest Mean Min. Temperature (F) | 32.2 | 42.4 | 46.4 | 54.0 | 65.6 | 70.2 | 72.0 | 68.6 | 63.8 | 58.3 | 43.8 | 36.8 | 72.0 |
| Year Highest Occurred | 1998 | 2000 | 1974 | 1986 | 2000 | 1998 | 1998 | 2000 | 1998 | 1998 | 1998 | 1984 | 1998 |
| Lowest Mean Min. Temperature (F) | 20.6 | 25.3 | 34.2 | 40.1 | 51.5 | 61.7 | 63.5 | 61.8 | 50.5 | 41.7 | 30.9 | 20.1 | 20.1 |
| Year Lowest Occurred | 1979 | 1978 | 1987 | 1988 | 1990 | 1973 | 1975 | 1976 | 1989 | 1976 | 1993 | 1989 | 1989 |
| Mean Precipitation (in.) | 0.68 | 0.87 | 0.82 | 1.12 | 2.62 | 2.65 | 1.82 | 2.08 | 2.98 | 1.95 | 0.83 | 0.98 | 19.40 |
| Highest Precipitation (in.) | 2.85 | 3.55 | 3.10 | 4.75 | 7.36 | 12.22 | 8.15 | 6.23 | 10.22 | 7.67 | 3.83 | 5.56 | 12.22 |
| Year Highest Occurred | 1991 | 1997 | 1999 | 1990 | 1975 | 1986 | 1976 | 1996 | 1974 | 1986 | 1996 | 1991 | 1986 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1997 | 1999 | 1996 | 1998 | 1991 | 1990 | 1996 | 2000 | 2000 | 1988 | 1999 | 1999 | 1997 |
| Heating Degree Days (F) | 705. | 499. | 324. | 132. | 38. | 1. | 0. | 0. | 15. | 103. | 401. | 653. | 2871. |
| Cooling Degree Days (F) | 0. | 0. | 10. | 82. | 266. | 414. | 512. | 469. | 277. | 66. | 7. | 0. | 2103. |