| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 40.3 | 44.6 | 52.1 | 60.8 | 70.1 | 81.9 | 88.2 | 86.4 | 78.7 | 66.5 | 49.7 | 41.7 | 63.4 |
| Highest Mean Max. Temperature (F) | 49.8 | 55.0 | 58.8 | 69.3 | 77.7 | 87.8 | 93.5 | 92.5 | 85.6 | 70.6 | 62.1 | 51.1 | 93.5 |
| Year Highest Occurred | 1986 | 2000 | 1972 | 2000 | 2000 | 1994 | 2000 | 2000 | 1998 | 1975 | 1999 | 1980 | 2000 |
| Lowest Mean Max. Temperature (F) | 28.1 | 30.7 | 46.1 | 52.0 | 60.5 | 74.4 | 83.7 | 82.9 | 71.1 | 58.4 | 38.9 | 26.9 | 26.9 |
| Year Lowest Occurred | 1979 | 1978 | 1980 | 1983 | 1995 | 1982 | 1992 | 1992 | 1973 | 1984 | 1972 | 1983 | 1983 |
| Mean Temperature (F) | 26.3 | 30.2 | 37.8 | 45.5 | 55.6 | 66.2 | 72.3 | 70.4 | 62.0 | 49.4 | 35.3 | 27.9 | 48.2 |
| Highest Mean Temperature (F) | 35.2 | 37.9 | 44.0 | 52.5 | 60.0 | 71.2 | 75.5 | 75.0 | 68.0 | 52.2 | 43.8 | 35.7 | 75.5 |
| Year Highest Occurred | 1986 | 2000 | 1986 | 1981 | 1994 | 1994 | 2000 | 2000 | 1998 | 1979 | 1999 | 1980 | 2000 |
| Lowest Mean Temperature (F) | 14.5 | 20.6 | 33.0 | 38.9 | 49.1 | 61.1 | 68.9 | 67.3 | 57.8 | 44.6 | 27.7 | 14.8 | 14.5 |
| Year Lowest Occurred | 1979 | 1978 | 1980 | 1983 | 1995 | 1982 | 1992 | 1974 | 1974 | 1984 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | 12.3 | 15.8 | 23.4 | 30.2 | 41.0 | 50.5 | 56.3 | 54.4 | 45.2 | 32.3 | 20.9 | 14.1 | 33.0 |
| Highest Mean Min. Temperature (F) | 20.5 | 22.8 | 29.4 | 36.3 | 45.5 | 55.3 | 59.8 | 58.1 | 50.4 | 35.9 | 27.2 | 20.2 | 59.8 |
| Year Highest Occurred | 1986 | 1992 | 1986 | 1981 | 1987 | 1988 | 1998 | 1983 | 1998 | 2000 | 1998 | 1980 | 1998 |
| Lowest Mean Min. Temperature (F) | 0.9 | 6.8 | 18.6 | 25.7 | 36.9 | 46.4 | 52.8 | 50.9 | 39.6 | 27.5 | 15.0 | 2.7 | 0.9 |
| Year Lowest Occurred | 1979 | 1989 | 1996 | 1997 | 1983 | 1998 | 1972 | 1978 | 1974 | 1976 | 1985 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.48 | 0.23 | 0.66 | 1.42 | 1.87 | 2.05 | 3.00 | 2.10 | 0.71 | 0.96 | 0.65 | 0.27 | 14.40 |
| Highest Precipitation (in.) | 1.77 | 1.46 | 2.37 | 3.58 | 5.51 | 5.27 | 6.69 | 4.35 | 2.17 | 2.94 | 1.62 | 0.68 | 6.69 |
| Year Highest Occurred | 1995 | 1998 | 2000 | 1999 | 1995 | 1997 | 1998 | 1992 | 1996 | 1993 | 1983 | 1973 | 1998 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.30 | 0.32 | 0.76 | 0.95 | 0.48 | 0.08 | 0.16 | 0.09 | 0.03 | 0.00 |
| Year Lowest Occurred | 1998 | 1991 | 1997 | 1989 | 1974 | 1973 | 1994 | 1998 | 1991 | 1996 | 1989 | 1998 | 1998 |
| Heating Degree Days (F) | 1199. | 974. | 845. | 586. | 303. | 67. | 3. | 15. | 144. | 483. | 890. | 1150. | 6659. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 10. | 103. | 228. | 183. | 52. | 0. | 0. | 0. | 576. |