| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 47.2 | 53.7 | 62.3 | 71.6 | 79.9 | 89.8 | 94.6 | 92.8 | 85.1 | 74.2 | 58.2 | 48.9 | 71.5 |
| Highest Mean Max. Temperature (F) | 61.0 | 65.5 | 73.0 | 79.6 | 88.7 | 96.7 | 102.1 | 100.2 | 94.1 | 81.2 | 69.3 | 56.5 | 102.1 |
| Year Highest Occurred | 1986 | 2000 | 1972 | 1981 | 1974 | 1990 | 1980 | 2000 | 2000 | 1979 | 1999 | 1977 | 1980 |
| Lowest Mean Max. Temperature (F) | 31.7 | 36.7 | 53.9 | 63.8 | 72.6 | 81.4 | 90.0 | 85.5 | 77.3 | 67.4 | 46.8 | 34.3 | 31.7 |
| Year Lowest Occurred | 1979 | 1978 | 1998 | 1997 | 1995 | 1989 | 1996 | 1992 | 1974 | 1984 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 33.8 | 39.5 | 47.4 | 56.4 | 65.6 | 75.2 | 80.1 | 78.4 | 70.5 | 59.0 | 44.6 | 35.8 | 57.2 |
| Highest Mean Temperature (F) | 44.1 | 47.8 | 53.6 | 63.7 | 71.6 | 80.1 | 85.5 | 83.7 | 77.3 | 62.7 | 52.2 | 42.3 | 85.5 |
| Year Highest Occurred | 1986 | 2000 | 1986 | 1981 | 1998 | 1981 | 1980 | 2000 | 1998 | 1979 | 1999 | 1994 | 1980 |
| Lowest Mean Temperature (F) | 20.9 | 27.1 | 41.8 | 50.3 | 60.5 | 69.5 | 76.8 | 72.2 | 62.1 | 52.9 | 35.5 | 23.6 | 20.9 |
| Year Lowest Occurred | 1979 | 1978 | 1998 | 1973 | 1995 | 1989 | 1973 | 1974 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 20.4 | 25.3 | 32.5 | 41.2 | 51.3 | 60.6 | 65.5 | 64.0 | 55.9 | 43.7 | 30.9 | 22.7 | 42.8 |
| Highest Mean Min. Temperature (F) | 27.8 | 33.7 | 38.3 | 47.8 | 56.0 | 65.0 | 68.8 | 68.4 | 61.0 | 49.2 | 36.9 | 29.6 | 68.8 |
| Year Highest Occurred | 1992 | 1987 | 1986 | 1981 | 1985 | 1994 | 1980 | 1995 | 1998 | 2000 | 1990 | 1994 | 1980 |
| Lowest Mean Min. Temperature (F) | 10.0 | 17.5 | 25.5 | 36.5 | 45.8 | 56.7 | 61.9 | 57.7 | 46.8 | 35.7 | 23.2 | 12.8 | 10.0 |
| Year Lowest Occurred | 1979 | 1978 | 1996 | 1973 | 1983 | 1973 | 1973 | 1974 | 1974 | 1976 | 1976 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.49 | 0.49 | 1.42 | 1.54 | 3.02 | 2.49 | 2.47 | 2.12 | 1.75 | 1.18 | 0.79 | 0.55 | 18.31 |
| Highest Precipitation (in.) | 1.80 | 2.21 | 7.08 | 4.44 | 10.71 | 7.31 | 7.00 | 7.86 | 9.07 | 6.84 | 3.84 | 3.42 | 10.71 |
| Year Highest Occurred | 1999 | 1990 | 1973 | 1988 | 1972 | 1989 | 1996 | 1972 | 1985 | 1998 | 1972 | 1997 | 1972 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.02 | 0.66 | 0.15 | 0.32 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 1999 | 1997 | 1996 | 1986 | 1998 | 1983 | 1978 | 1980 | 1989 | 1999 | 1996 | 1998 |
| Heating Degree Days (F) | 967. | 715. | 546. | 282. | 95. | 9. | 0. | 2. | 36. | 206. | 613. | 904. | 4375. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 23. | 113. | 314. | 467. | 418. | 201. | 17. | 0. | 0. | 1553. |