| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 47.1 | 48.0 | 51.1 | 58.0 | 66.1 | 75.6 | 80.7 | 79.1 | 73.6 | 64.4 | 54.3 | 47.9 | 62.2 |
| Highest Mean Max. Temperature (F) | 57.9 | 53.8 | 62.5 | 66.0 | 75.1 | 81.2 | 83.4 | 83.5 | 76.7 | 69.7 | 61.2 | 56.5 | 83.5 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1989 | 1984 | 1985 | 1989 | 1985 | 1979 | 1999 | 1995 | 1980 | 1985 |
| Lowest Mean Max. Temperature (F) | 41.4 | 40.3 | 41.9 | 45.6 | 55.4 | 71.6 | 77.3 | 75.9 | 66.2 | 57.5 | 46.8 | 40.5 | 40.3 |
| Year Lowest Occurred | 1979 | 1998 | 1991 | 1975 | 1977 | 1998 | 1984 | 1979 | 1986 | 1972 | 1994 | 1971 | 1998 |
| Mean Temperature (F) | 33.9 | 35.1 | 37.8 | 43.2 | 50.3 | 58.4 | 63.9 | 62.7 | 57.1 | 48.3 | 39.8 | 34.5 | 47.1 |
| Highest Mean Temperature (F) | 41.8 | 39.8 | 44.7 | 49.7 | 56.5 | 62.6 | 67.1 | 65.8 | 60.2 | 52.7 | 45.4 | 40.7 | 67.1 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1989 | 1984 | 1994 | 1996 | 1986 | 1997 | 1978 | 1995 | 1980 | 1996 |
| Lowest Mean Temperature (F) | 27.6 | 30.3 | 30.7 | 33.6 | 42.4 | 54.7 | 60.5 | 58.7 | 51.4 | 43.6 | 33.8 | 29.3 | 27.6 |
| Year Lowest Occurred | 1979 | 1973 | 1991 | 1975 | 1977 | 1982 | 1987 | 1976 | 1986 | 1971 | 1994 | 1971 | 1979 |
| Mean Min. Temperature (F) | 20.7 | 22.1 | 24.5 | 28.3 | 34.4 | 41.1 | 47.1 | 46.3 | 40.6 | 32.1 | 25.3 | 21.1 | 32.0 |
| Highest Mean Min. Temperature (F) | 27.7 | 27.4 | 29.0 | 33.4 | 39.6 | 45.0 | 51.6 | 49.9 | 46.6 | 35.9 | 29.5 | 27.0 | 51.6 |
| Year Highest Occurred | 1980 | 1996 | 1989 | 1989 | 2000 | 1994 | 1996 | 1998 | 1997 | 1988 | 1995 | 1996 | 1996 |
| Lowest Mean Min. Temperature (F) | 13.9 | 15.5 | 19.3 | 21.6 | 29.4 | 36.9 | 43.0 | 41.1 | 35.2 | 26.7 | 20.3 | 14.0 | 13.9 |
| Year Lowest Occurred | 1979 | 1979 | 1977 | 1975 | 1977 | 1983 | 1987 | 1976 | 1985 | 1971 | 1972 | 1990 | 1979 |
| Mean Precipitation (in.) | 4.10 | 4.60 | 3.55 | 0.95 | 0.51 | 0.18 | 0.75 | 0.98 | 0.53 | 0.78 | 1.55 | 2.67 | 21.15 |
| Highest Precipitation (in.) | 21.15 | 17.34 | 11.04 | 3.58 | 3.86 | 1.59 | 5.05 | 3.19 | 5.03 | 3.25 | 6.07 | 12.98 | 21.15 |
| Year Highest Occurred | 1993 | 1980 | 1978 | 1978 | 1977 | 1972 | 1984 | 2000 | 1976 | 1987 | 1982 | 1971 | 1993 |
| Lowest Precipitation (in.) | 0.00 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1976 | 1972 | 1997 | 1993 | 1997 | 1998 | 2000 | 1993 | 1994 | 1999 | 1995 | 1999 | 1976 |
| Heating Degree Days (F) | 965. | 839. | 828. | 657. | 461. | 208. | 73. | 105. | 241. | 519. | 756. | 946. | 6598. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 3. | 10. | 39. | 33. | 4. | 0. | 0. | 0. | 89. |