| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 42.9 | 48.4 | 56.6 | 65.4 | 75.0 | 86.3 | 92.4 | 89.9 | 81.7 | 69.6 | 53.2 | 44.2 | 67.1 |
| Highest Mean Max. Temperature (F) | 56.0 | 59.0 | 64.5 | 73.2 | 83.1 | 91.3 | 97.0 | 97.5 | 86.8 | 74.5 | 66.9 | 54.3 | 97.5 |
| Year Highest Occurred | 1986 | 1999 | 1972 | 1981 | 1974 | 1994 | 1980 | 1995 | 1977 | 1975 | 1999 | 1980 | 1995 |
| Lowest Mean Max. Temperature (F) | 32.1 | 33.5 | 49.4 | 54.1 | 65.2 | 79.3 | 87.9 | 84.1 | 74.8 | 62.1 | 40.7 | 27.5 | 27.5 |
| Year Lowest Occurred | 1979 | 1978 | 1980 | 1984 | 1995 | 1982 | 1996 | 1992 | 1973 | 1984 | 1972 | 1983 | 1983 |
| Mean Temperature (F) | 29.9 | 34.7 | 42.0 | 50.2 | 60.1 | 70.2 | 76.1 | 74.5 | 66.1 | 54.1 | 39.8 | 31.4 | 52.4 |
| Highest Mean Temperature (F) | 40.0 | 44.4 | 48.3 | 56.8 | 65.1 | 75.0 | 79.6 | 79.5 | 70.9 | 56.6 | 50.0 | 39.0 | 79.6 |
| Year Highest Occurred | 1986 | 1999 | 1986 | 1981 | 1974 | 1988 | 1999 | 1995 | 1998 | 1999 | 1999 | 1980 | 1999 |
| Lowest Mean Temperature (F) | 19.3 | 23.0 | 36.5 | 43.4 | 54.0 | 65.8 | 72.5 | 69.9 | 62.0 | 49.6 | 31.3 | 17.2 | 17.2 |
| Year Lowest Occurred | 1979 | 1978 | 1980 | 1984 | 1995 | 1982 | 1992 | 1992 | 1971 | 1976 | 1972 | 1983 | 1983 |
| Mean Min. Temperature (F) | 16.8 | 20.9 | 27.4 | 34.9 | 45.2 | 54.1 | 59.7 | 59.0 | 50.5 | 38.6 | 26.3 | 18.5 | 37.7 |
| Highest Mean Min. Temperature (F) | 24.3 | 29.8 | 34.0 | 40.5 | 49.4 | 59.2 | 64.9 | 62.6 | 55.3 | 42.2 | 35.5 | 24.8 | 64.9 |
| Year Highest Occurred | 1999 | 1999 | 2000 | 1981 | 1998 | 1988 | 1999 | 1999 | 1997 | 1998 | 1998 | 1994 | 1999 |
| Lowest Mean Min. Temperature (F) | 6.5 | 12.6 | 20.8 | 29.9 | 42.0 | 49.6 | 56.3 | 54.6 | 45.2 | 34.5 | 20.1 | 6.9 | 6.5 |
| Year Lowest Occurred | 1979 | 1978 | 1975 | 1973 | 1983 | 1998 | 1992 | 1974 | 1974 | 1992 | 1993 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.25 | 0.34 | 0.86 | 1.29 | 2.80 | 2.41 | 2.63 | 2.45 | 1.31 | 0.81 | 0.60 | 0.25 | 16.00 |
| Highest Precipitation (in.) | 0.57 | 1.02 | 3.59 | 3.92 | 6.93 | 5.57 | 5.90 | 6.24 | 4.74 | 2.90 | 1.79 | 1.35 | 6.93 |
| Year Highest Occurred | 1990 | 1983 | 1981 | 1999 | 1995 | 1989 | 1996 | 1989 | 1973 | 1993 | 1991 | 1979 | 1995 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.08 | 0.97 | 0.22 | 0.46 | 0.45 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 1977 | 1989 | 1992 | 1994 | 1976 | 1983 | 1983 | 1992 | 1987 | 1999 | 1996 | 1998 |
| Heating Degree Days (F) | 1089. | 849. | 714. | 450. | 187. | 27. | 0. | 7. | 70. | 340. | 759. | 1043. | 5535. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 4. | 34. | 182. | 342. | 299. | 103. | 1. | 0. | 0. | 965. |