| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 56.4 | 62.4 | 70.0 | 77.7 | 85.8 | 93.3 | 93.8 | 91.8 | 85.4 | 76.9 | 65.3 | 57.1 | 76.3 |
| Highest Mean Max. Temperature (F) | 63.8 | 69.6 | 77.4 | 82.7 | 96.5 | 100.3 | 98.5 | 95.7 | 92.0 | 81.9 | 72.3 | 64.3 | 100.3 |
| Year Highest Occurred | 1999 | 1976 | 1974 | 1989 | 1996 | 1990 | 1980 | 1999 | 2000 | 1995 | 1999 | 1977 | 1990 |
| Lowest Mean Max. Temperature (F) | 47.1 | 54.6 | 65.2 | 70.7 | 79.9 | 87.5 | 87.7 | 86.3 | 76.9 | 70.5 | 56.2 | 49.4 | 47.1 |
| Year Lowest Occurred | 1979 | 1978 | 1987 | 1983 | 1976 | 1986 | 1975 | 1971 | 1974 | 1976 | 2000 | 1997 | 1979 |
| Mean Temperature (F) | 38.9 | 43.9 | 51.0 | 59.0 | 68.4 | 76.6 | 78.8 | 76.9 | 69.8 | 59.3 | 47.5 | 39.4 | 59.1 |
| Highest Mean Temperature (F) | 45.2 | 50.7 | 55.4 | 63.3 | 76.4 | 82.1 | 82.6 | 80.0 | 75.5 | 62.5 | 52.1 | 43.9 | 82.6 |
| Year Highest Occurred | 1999 | 1995 | 1974 | 1986 | 1996 | 1990 | 1998 | 1994 | 1998 | 1998 | 1999 | 1994 | 1998 |
| Lowest Mean Temperature (F) | 33.7 | 39.4 | 46.8 | 53.5 | 64.0 | 72.2 | 74.7 | 73.4 | 64.0 | 52.6 | 40.1 | 34.0 | 33.7 |
| Year Lowest Occurred | 1979 | 1973 | 1987 | 1983 | 1976 | 1979 | 1975 | 1971 | 1974 | 1976 | 1976 | 1997 | 1979 |
| Mean Min. Temperature (F) | 21.3 | 25.4 | 32.0 | 40.2 | 51.0 | 59.8 | 63.7 | 61.9 | 54.1 | 41.6 | 29.6 | 21.7 | 41.9 |
| Highest Mean Min. Temperature (F) | 26.8 | 32.4 | 36.7 | 44.7 | 56.3 | 64.2 | 67.0 | 64.6 | 59.3 | 46.7 | 36.8 | 26.7 | 67.0 |
| Year Highest Occurred | 1993 | 1995 | 1999 | 1990 | 1996 | 1996 | 1998 | 1994 | 1998 | 1983 | 1978 | 1984 | 1998 |
| Lowest Mean Min. Temperature (F) | 17.4 | 18.7 | 26.7 | 34.1 | 44.8 | 55.5 | 61.2 | 56.7 | 49.0 | 34.6 | 23.6 | 16.0 | 16.0 |
| Year Lowest Occurred | 1987 | 1974 | 1977 | 1975 | 1975 | 1973 | 1985 | 1973 | 1984 | 1976 | 1979 | 1989 | 1989 |
| Mean Precipitation (in.) | 0.40 | 0.44 | 0.28 | 0.52 | 1.23 | 1.87 | 1.38 | 2.19 | 2.51 | 1.30 | 0.69 | 0.56 | 13.37 |
| Highest Precipitation (in.) | 1.30 | 2.22 | 1.13 | 2.51 | 4.36 | 9.77 | 3.26 | 6.30 | 9.06 | 7.02 | 3.57 | 3.00 | 9.77 |
| Year Highest Occurred | 1991 | 1973 | 1973 | 1985 | 1999 | 1978 | 1991 | 1991 | 1980 | 1974 | 2000 | 1991 | 1978 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.18 | 0.24 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 2000 | 1980 | 1989 | 2000 | 1990 | 1983 | 1985 | 2000 | 1989 | 1999 | 1996 | 1998 |
| Heating Degree Days (F) | 810. | 592. | 435. | 209. | 52. | 2. | 0. | 1. | 32. | 193. | 528. | 794. | 3648. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 27. | 156. | 349. | 427. | 368. | 173. | 15. | 0. | 0. | 1515. |