| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 42.3 | 47.2 | 53.2 | 59.7 | 68.9 | 79.2 | 85.0 | 83.1 | 75.8 | 65.8 | 50.9 | 42.1 | 62.8 |
| Highest Mean Max. Temperature (F) | 50.8 | 54.8 | 60.0 | 68.0 | 74.7 | 83.8 | 90.1 | 87.5 | 82.1 | 70.1 | 61.2 | 53.4 | 90.1 |
| Year Highest Occurred | 1986 | 1999 | 1986 | 1981 | 1998 | 1990 | 1980 | 2000 | 1998 | 1988 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 31.3 | 36.4 | 47.2 | 51.5 | 60.1 | 73.3 | 80.6 | 79.0 | 70.6 | 58.3 | 41.8 | 30.3 | 30.3 |
| Year Lowest Occurred | 1979 | 1989 | 1973 | 1973 | 1995 | 1982 | 1990 | 1992 | 1973 | 1984 | 2000 | 1983 | 1983 |
| Mean Temperature (F) | 25.1 | 29.4 | 36.1 | 43.8 | 52.6 | 62.1 | 68.0 | 66.6 | 58.1 | 47.4 | 34.0 | 26.7 | 45.8 |
| Highest Mean Temperature (F) | 35.7 | 35.7 | 44.7 | 50.7 | 56.7 | 67.0 | 71.6 | 71.3 | 61.7 | 52.3 | 39.1 | 36.1 | 71.6 |
| Year Highest Occurred | 1986 | 1991 | 1986 | 1981 | 1985 | 1988 | 1980 | 2000 | 1983 | 1988 | 1989 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 12.9 | 22.1 | 31.1 | 34.2 | 45.8 | 54.2 | 64.0 | 62.2 | 53.6 | 43.4 | 27.7 | 19.9 | 12.9 |
| Year Lowest Occurred | 1979 | 1989 | 1998 | 1997 | 1995 | 1998 | 1995 | 1997 | 1993 | 1998 | 2000 | 1983 | 1979 |
| Mean Min. Temperature (F) | 7.8 | 11.5 | 19.0 | 27.8 | 36.2 | 45.0 | 50.9 | 50.0 | 40.4 | 28.9 | 17.0 | 11.3 | 28.8 |
| Highest Mean Min. Temperature (F) | 20.6 | 21.0 | 29.3 | 33.4 | 42.3 | 52.0 | 55.0 | 55.1 | 45.5 | 35.4 | 23.7 | 18.7 | 55.1 |
| Year Highest Occurred | 1986 | 1987 | 1986 | 1981 | 1987 | 1988 | 1985 | 2000 | 1990 | 1972 | 1987 | 1980 | 2000 |
| Lowest Mean Min. Temperature (F) | -5.5 | 5.8 | 9.2 | 15.7 | 27.6 | 31.0 | 43.4 | 41.3 | 34.7 | 20.8 | 9.3 | 2.8 | -5.5 |
| Year Lowest Occurred | 1979 | 2000 | 2000 | 1997 | 1998 | 1998 | 1997 | 1998 | 1998 | 1998 | 1997 | 1997 | 1979 |
| Mean Precipitation (in.) | 0.76 | 0.61 | 2.07 | 2.66 | 3.08 | 2.25 | 1.99 | 2.56 | 1.53 | 1.19 | 1.41 | 0.95 | 21.06 |
| Highest Precipitation (in.) | 2.01 | 1.86 | 4.93 | 6.85 | 6.44 | 4.42 | 4.14 | 5.81 | 3.59 | 3.79 | 4.07 | 2.54 | 6.85 |
| Year Highest Occurred | 1980 | 1997 | 1992 | 1999 | 1987 | 1997 | 1991 | 1997 | 1996 | 1997 | 1991 | 1987 | 1999 |
| Lowest Precipitation (in.) | 0.23 | 0.00 | 0.31 | 0.60 | 0.20 | 0.36 | 0.81 | 0.64 | 0.02 | 0.03 | 0.19 | 0.20 | 0.00 |
| Year Lowest Occurred | 1993 | 1992 | 1999 | 1992 | 1974 | 1980 | 1988 | 1985 | 1992 | 1988 | 1984 | 1991 | 1992 |
| Heating Degree Days (F) | 1240. | 998. | 896. | 642. | 388. | 142. | 32. | 53. | 221. | 547. | 931. | 1188. | 7278. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 2. | 55. | 123. | 101. | 13. | 0. | 0. | 0. | 294. |