| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 36.8 | 44.1 | 55.7 | 65.4 | 75.5 | 86.3 | 92.3 | 90.0 | 79.2 | 64.7 | 48.3 | 38.0 | 64.7 |
| Highest Mean Max. Temperature (F) | 44.6 | 54.6 | 62.6 | 75.5 | 82.0 | 93.8 | 96.5 | 94.4 | 84.9 | 72.5 | 59.0 | 46.8 | 96.5 |
| Year Highest Occurred | 1998 | 1995 | 1972 | 1992 | 1992 | 1996 | 1996 | 1994 | 1979 | 1988 | 1999 | 1995 | 1996 |
| Lowest Mean Max. Temperature (F) | 26.8 | 31.8 | 48.9 | 56.1 | 68.9 | 80.9 | 88.2 | 87.1 | 72.2 | 57.0 | 40.0 | 29.7 | 26.8 |
| Year Lowest Occurred | 1984 | 1989 | 1984 | 1975 | 1999 | 1984 | 1982 | 1999 | 1986 | 1984 | 2000 | 1985 | 1984 |
| Mean Temperature (F) | 28.6 | 34.2 | 44.3 | 52.5 | 61.1 | 70.2 | 76.5 | 74.9 | 65.2 | 52.2 | 39.2 | 30.8 | 52.5 |
| Highest Mean Temperature (F) | 39.9 | 43.6 | 50.7 | 60.2 | 69.4 | 74.7 | 79.6 | 79.6 | 71.8 | 57.1 | 46.4 | 39.5 | 79.6 |
| Year Highest Occurred | 1998 | 1995 | 1999 | 1992 | 1997 | 1996 | 1996 | 1996 | 1998 | 1988 | 1995 | 1995 | 1996 |
| Lowest Mean Temperature (F) | 17.7 | 21.7 | 37.8 | 45.7 | 55.9 | 66.1 | 72.3 | 71.2 | 59.3 | 47.3 | 32.0 | 22.0 | 17.7 |
| Year Lowest Occurred | 1989 | 1989 | 1984 | 1975 | 1983 | 1975 | 1993 | 1987 | 1986 | 1984 | 2000 | 1990 | 1989 |
| Mean Min. Temperature (F) | 20.3 | 24.3 | 32.9 | 39.5 | 46.6 | 54.1 | 60.6 | 59.8 | 51.1 | 39.7 | 30.0 | 23.5 | 40.2 |
| Highest Mean Min. Temperature (F) | 35.2 | 36.6 | 41.9 | 46.2 | 57.7 | 58.4 | 65.1 | 66.9 | 62.7 | 45.9 | 38.2 | 33.4 | 66.9 |
| Year Highest Occurred | 1998 | 1998 | 1999 | 1998 | 1997 | 1986 | 1984 | 1996 | 1998 | 1997 | 1997 | 1996 | 1996 |
| Lowest Mean Min. Temperature (F) | 6.0 | 11.6 | 25.3 | 35.1 | 41.8 | 51.2 | 55.4 | 55.2 | 46.4 | 35.2 | 23.3 | 12.0 | 6.0 |
| Year Lowest Occurred | 1989 | 1989 | 1976 | 1984 | 1975 | 1975 | 1993 | 1987 | 1988 | 1976 | 1979 | 1990 | 1989 |
| Mean Precipitation (in.) | 1.22 | 1.11 | 1.15 | 1.30 | 1.38 | 0.78 | 0.67 | 0.77 | 1.15 | 1.49 | 1.03 | 0.79 | 12.84 |
| Highest Precipitation (in.) | 2.94 | 2.79 | 2.54 | 4.66 | 4.81 | 2.85 | 1.70 | 2.28 | 5.75 | 3.48 | 2.24 | 3.35 | 5.75 |
| Year Highest Occurred | 1997 | 1986 | 1993 | 1999 | 1995 | 1998 | 1982 | 1983 | 1982 | 1981 | 1983 | 1983 | 1982 |
| Lowest Precipitation (in.) | 0.25 | 0.00 | 0.14 | 0.05 | 0.14 | 0.00 | 0.09 | 0.02 | 0.03 | 0.01 | 0.11 | 0.06 | 0.00 |
| Year Lowest Occurred | 1989 | 1988 | 1997 | 1987 | 1972 | 1994 | 1991 | 1996 | 1974 | 1978 | 1976 | 1976 | 1988 |
| Heating Degree Days (F) | 1131. | 863. | 643. | 383. | 181. | 26. | 0. | 5. | 95. | 398. | 777. | 1062. | 5564. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 8. | 57. | 183. | 355. | 312. | 99. | 2. | 0. | 0. | 1016. |