| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 38.0 | 46.1 | 56.8 | 65.1 | 73.0 | 80.8 | 88.2 | 88.0 | 78.9 | 67.1 | 50.2 | 39.0 | 64.3 |
| Highest Mean Max. Temperature (F) | 47.0 | 54.4 | 64.8 | 75.3 | 80.3 | 87.3 | 92.9 | 92.6 | 85.6 | 75.4 | 57.4 | 45.8 | 92.9 |
| Year Highest Occurred | 1998 | 1995 | 1992 | 1987 | 1992 | 1986 | 1985 | 1971 | 1990 | 1988 | 1999 | 1996 | 1985 |
| Lowest Mean Max. Temperature (F) | 24.8 | 29.7 | 50.5 | 55.5 | 66.7 | 75.6 | 78.6 | 82.5 | 68.6 | 62.3 | 39.9 | 22.1 | 22.1 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1993 | 1993 | 1975 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 31.2 | 37.7 | 46.1 | 53.0 | 60.5 | 67.4 | 73.8 | 73.0 | 64.5 | 53.8 | 41.3 | 31.9 | 52.9 |
| Highest Mean Temperature (F) | 39.5 | 43.3 | 50.8 | 59.6 | 65.7 | 72.6 | 78.0 | 77.2 | 69.9 | 60.6 | 46.0 | 39.3 | 78.0 |
| Year Highest Occurred | 1998 | 1995 | 1994 | 1987 | 1987 | 1986 | 1985 | 1971 | 1990 | 1988 | 1983 | 1973 | 1985 |
| Lowest Mean Temperature (F) | 16.8 | 22.2 | 39.2 | 46.6 | 55.5 | 63.6 | 65.7 | 68.1 | 56.8 | 49.0 | 30.2 | 13.4 | 13.4 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1977 | 1998 | 1993 | 1993 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 24.3 | 29.3 | 35.3 | 40.9 | 47.9 | 54.0 | 59.3 | 57.9 | 50.0 | 40.5 | 32.3 | 24.8 | 41.4 |
| Highest Mean Min. Temperature (F) | 31.9 | 36.4 | 40.8 | 44.9 | 52.5 | 59.2 | 65.1 | 61.7 | 54.9 | 45.9 | 39.3 | 33.5 | 65.1 |
| Year Highest Occurred | 1981 | 1983 | 1983 | 1980 | 1987 | 1988 | 1975 | 1971 | 1998 | 1975 | 1983 | 1973 | 1975 |
| Lowest Mean Min. Temperature (F) | 8.8 | 14.7 | 27.6 | 37.2 | 43.7 | 49.6 | 52.8 | 52.1 | 45.0 | 35.6 | 20.4 | 4.7 | 4.7 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1999 | 1991 | 1998 | 1993 | 1985 | 1984 | 1985 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.13 | 0.93 | 1.21 | 1.04 | 1.05 | 0.75 | 0.37 | 0.35 | 0.54 | 0.62 | 1.05 | 1.11 | 10.15 |
| Highest Precipitation (in.) | 2.97 | 2.81 | 3.52 | 3.33 | 3.96 | 2.39 | 1.12 | 1.80 | 2.61 | 2.12 | 2.22 | 2.86 | 3.96 |
| Year Highest Occurred | 1997 | 1986 | 1993 | 1978 | 1998 | 1993 | 1983 | 1979 | 1986 | 2000 | 1988 | 1981 | 1998 |
| Lowest Precipitation (in.) | 0.16 | 0.12 | 0.20 | 0.24 | 0.11 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.12 | 0.00 | 0.00 |
| Year Lowest Occurred | 1985 | 1997 | 1997 | 1977 | 1992 | 1989 | 1999 | 2000 | 1999 | 1988 | 1999 | 1989 | 1999 |
| Heating Degree Days (F) | 1050. | 764. | 588. | 364. | 176. | 53. | 9. | 10. | 103. | 350. | 712. | 1026. | 5205. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 4. | 34. | 125. | 281. | 256. | 88. | 2. | 0. | 0. | 790. |