| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 44.5 | 50.6 | 58.9 | 68.3 | 77.2 | 88.1 | 93.4 | 90.6 | 82.2 | 71.4 | 56.0 | 46.7 | 69.0 |
| Highest Mean Max. Temperature (F) | 59.1 | 60.5 | 68.8 | 76.0 | 84.1 | 96.5 | 99.6 | 98.7 | 90.3 | 77.7 | 66.6 | 53.6 | 99.6 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1981 | 1974 | 1994 | 1980 | 1983 | 1998 | 1994 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 29.2 | 34.5 | 50.6 | 58.9 | 70.3 | 78.8 | 89.2 | 84.6 | 74.9 | 64.1 | 45.3 | 30.6 | 29.2 |
| Year Lowest Occurred | 1979 | 1978 | 1998 | 1997 | 1995 | 1989 | 1989 | 1992 | 1974 | 1984 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 29.9 | 34.9 | 42.6 | 51.6 | 61.9 | 72.6 | 78.1 | 75.9 | 67.1 | 55.0 | 41.4 | 32.5 | 53.6 |
| Highest Mean Temperature (F) | 40.5 | 42.3 | 48.9 | 58.0 | 66.7 | 78.9 | 83.2 | 81.3 | 74.3 | 59.3 | 48.3 | 38.4 | 83.2 |
| Year Highest Occurred | 1986 | 2000 | 1986 | 1981 | 1996 | 1994 | 1980 | 1983 | 1998 | 1994 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 17.1 | 22.6 | 37.5 | 45.2 | 56.8 | 66.9 | 74.8 | 71.3 | 60.3 | 48.5 | 33.7 | 20.4 | 17.1 |
| Year Lowest Occurred | 1979 | 1978 | 1980 | 1997 | 1995 | 1989 | 1972 | 1992 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 15.2 | 19.2 | 26.3 | 34.8 | 46.6 | 57.1 | 62.7 | 61.1 | 51.9 | 38.5 | 26.8 | 18.2 | 38.2 |
| Highest Mean Min. Temperature (F) | 21.9 | 26.9 | 31.4 | 39.9 | 50.7 | 61.2 | 66.8 | 63.9 | 58.2 | 44.4 | 32.4 | 23.2 | 66.8 |
| Year Highest Occurred | 1986 | 1987 | 1986 | 1981 | 1996 | 1994 | 1980 | 1995 | 1998 | 2000 | 1981 | 1980 | 1980 |
| Lowest Mean Min. Temperature (F) | 5.0 | 10.7 | 18.5 | 30.1 | 42.0 | 53.1 | 59.8 | 57.7 | 45.7 | 31.6 | 21.4 | 10.2 | 5.0 |
| Year Lowest Occurred | 1979 | 1978 | 1996 | 1973 | 1983 | 1982 | 1995 | 1974 | 1974 | 1976 | 1976 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.42 | 0.43 | 1.03 | 1.50 | 3.01 | 2.44 | 2.35 | 2.29 | 1.57 | 1.09 | 0.74 | 0.38 | 17.25 |
| Highest Precipitation (in.) | 1.05 | 1.60 | 3.51 | 6.33 | 6.77 | 8.58 | 6.09 | 5.34 | 5.50 | 3.98 | 3.60 | 1.32 | 8.58 |
| Year Highest Occurred | 1990 | 1993 | 2000 | 1976 | 1977 | 1989 | 1998 | 1997 | 1996 | 2000 | 1972 | 1997 | 1989 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.20 | 0.80 | 0.22 | 0.37 | 0.15 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1986 | 1996 | 1997 | 1978 | 1974 | 1980 | 1983 | 1978 | 2000 | 1995 | 1999 | 1988 | 1986 |
| Heating Degree Days (F) | 1089. | 844. | 695. | 409. | 157. | 17. | 0. | 3. | 65. | 316. | 708. | 1010. | 5313. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 6. | 61. | 245. | 404. | 339. | 126. | 4. | 0. | 0. | 1185. |