| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 38.4 | 42.9 | 49.7 | 57.9 | 67.2 | 77.7 | 80.0 | 77.2 | 71.4 | 60.8 | 47.6 | 39.6 | 59.2 |
| Highest Mean Max. Temperature (F) | 48.6 | 50.7 | 58.0 | 66.5 | 77.6 | 84.2 | 85.4 | 81.8 | 77.9 | 66.1 | 58.5 | 48.1 | 85.4 |
| Year Highest Occurred | 1986 | 1999 | 1989 | 1989 | 1996 | 1990 | 1980 | 2000 | 1998 | 1995 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 30.6 | 37.8 | 41.6 | 50.5 | 62.0 | 72.7 | 76.9 | 73.3 | 67.4 | 51.9 | 39.3 | 33.9 | 30.6 |
| Year Lowest Occurred | 1979 | 1973 | 1973 | 1973 | 1979 | 1986 | 1990 | 1993 | 1985 | 1984 | 2000 | 1992 | 1979 |
| Mean Temperature (F) | 28.1 | 32.4 | 38.4 | 45.5 | 54.5 | 64.4 | 67.3 | 65.2 | 59.2 | 48.8 | 36.8 | 29.3 | 47.5 |
| Highest Mean Temperature (F) | 36.2 | 39.1 | 45.2 | 52.7 | 62.9 | 69.7 | 70.3 | 68.8 | 64.4 | 53.5 | 43.8 | 37.4 | 70.3 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1989 | 1996 | 1990 | 1980 | 2000 | 1998 | 1988 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 21.4 | 27.9 | 33.0 | 39.2 | 49.8 | 60.9 | 64.7 | 63.0 | 55.6 | 42.5 | 30.3 | 23.8 | 21.4 |
| Year Lowest Occurred | 1979 | 1985 | 1973 | 1983 | 1983 | 1995 | 1991 | 1993 | 1996 | 1984 | 1972 | 1992 | 1979 |
| Mean Min. Temperature (F) | 17.7 | 21.8 | 27.0 | 33.1 | 41.7 | 51.1 | 54.6 | 53.1 | 47.0 | 36.8 | 25.9 | 19.0 | 35.7 |
| Highest Mean Min. Temperature (F) | 24.1 | 28.1 | 33.2 | 38.9 | 48.2 | 55.3 | 56.1 | 55.8 | 51.0 | 41.7 | 31.1 | 26.7 | 56.1 |
| Year Highest Occurred | 1980 | 1995 | 1972 | 1989 | 1996 | 1994 | 1978 | 1977 | 2000 | 1988 | 1973 | 1980 | 1978 |
| Lowest Mean Min. Temperature (F) | 12.2 | 17.1 | 22.4 | 27.9 | 36.7 | 48.1 | 50.9 | 49.4 | 43.0 | 32.9 | 20.5 | 13.3 | 12.2 |
| Year Lowest Occurred | 1979 | 1985 | 1977 | 1983 | 1983 | 1995 | 1976 | 1976 | 1996 | 1993 | 1992 | 1990 | 1979 |
| Mean Precipitation (in.) | 0.96 | 0.75 | 1.28 | 1.05 | 1.43 | 1.44 | 2.97 | 3.32 | 2.08 | 1.54 | 1.19 | 0.92 | 18.93 |
| Highest Precipitation (in.) | 3.22 | 2.78 | 4.11 | 3.23 | 3.46 | 5.67 | 5.29 | 6.44 | 4.55 | 4.16 | 6.60 | 3.21 | 6.60 |
| Year Highest Occurred | 1993 | 1987 | 1973 | 1975 | 1992 | 1986 | 1998 | 1997 | 1975 | 1998 | 1978 | 1984 | 1978 |
| Lowest Precipitation (in.) | 0.01 | 0.04 | 0.09 | 0.00 | 0.00 | 0.00 | 0.35 | 1.20 | 0.34 | 0.00 | 0.02 | 0.01 | 0.00 |
| Year Lowest Occurred | 1986 | 1972 | 1997 | 1991 | 1998 | 1980 | 1980 | 1973 | 2000 | 1995 | 1999 | 1981 | 1991 |
| Heating Degree Days (F) | 1145. | 914. | 826. | 585. | 340. | 88. | 16. | 51. | 191. | 502. | 848. | 1107. | 6613. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 13. | 71. | 86. | 55. | 15. | 0. | 0. | 0. | 240. |