| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 44.5 | 47.2 | 52.7 | 60.2 | 67.2 | 76.1 | 81.3 | 81.1 | 76.0 | 64.5 | 52.1 | 45.1 | 62.3 |
| Highest Mean Max. Temperature (F) | 51.2 | 55.8 | 64.1 | 70.8 | 77.8 | 82.0 | 88.0 | 87.7 | 81.3 | 71.5 | 61.5 | 52.1 | 88.0 |
| Year Highest Occurred | 1986 | 1991 | 1997 | 1989 | 2000 | 1994 | 2000 | 1998 | 1979 | 1999 | 1995 | 2000 | 2000 |
| Lowest Mean Max. Temperature (F) | 37.9 | 41.6 | 44.4 | 47.6 | 55.1 | 70.1 | 77.0 | 75.6 | 66.5 | 56.8 | 44.8 | 35.1 | 35.1 |
| Year Lowest Occurred | 1973 | 1998 | 1973 | 1975 | 1998 | 1998 | 1987 | 1976 | 1986 | 1972 | 1994 | 1971 | 1971 |
| Mean Temperature (F) | 36.9 | 38.8 | 42.3 | 47.8 | 54.2 | 62.4 | 68.4 | 68.3 | 63.2 | 53.0 | 42.9 | 37.3 | 51.3 |
| Highest Mean Temperature (F) | 42.4 | 44.6 | 50.6 | 56.8 | 62.4 | 68.1 | 72.8 | 74.5 | 66.7 | 60.0 | 51.0 | 43.7 | 74.5 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1989 | 2000 | 1994 | 2000 | 1998 | 1999 | 1988 | 1995 | 2000 | 1998 |
| Lowest Mean Temperature (F) | 31.4 | 34.9 | 36.3 | 38.3 | 45.4 | 58.1 | 64.6 | 62.1 | 55.8 | 47.7 | 36.9 | 29.9 | 29.9 |
| Year Lowest Occurred | 1973 | 1990 | 1973 | 1975 | 1977 | 1982 | 1993 | 1976 | 1986 | 1972 | 1994 | 1971 | 1971 |
| Mean Min. Temperature (F) | 29.3 | 30.3 | 31.8 | 35.3 | 41.1 | 48.7 | 55.4 | 55.5 | 50.3 | 41.5 | 33.6 | 29.4 | 40.2 |
| Highest Mean Min. Temperature (F) | 33.6 | 34.7 | 37.5 | 42.8 | 48.3 | 54.1 | 60.0 | 61.2 | 54.3 | 48.6 | 40.4 | 35.2 | 61.2 |
| Year Highest Occurred | 2000 | 1996 | 1972 | 1989 | 1997 | 1994 | 1996 | 1998 | 1994 | 1988 | 1995 | 2000 | 1998 |
| Lowest Mean Min. Temperature (F) | 24.8 | 25.6 | 26.4 | 29.0 | 34.5 | 44.6 | 51.8 | 48.7 | 45.0 | 35.2 | 29.0 | 23.9 | 23.9 |
| Year Lowest Occurred | 1973 | 1990 | 1977 | 1975 | 1977 | 1982 | 1982 | 1976 | 1986 | 1971 | 1994 | 1990 | 1990 |
| Mean Precipitation (in.) | 8.39 | 8.99 | 8.03 | 2.53 | 1.32 | 0.28 | 0.10 | 0.33 | 1.07 | 2.01 | 3.45 | 5.16 | 41.66 |
| Highest Precipitation (in.) | 36.93 | 25.68 | 27.61 | 8.01 | 11.63 | 4.21 | 0.70 | 3.47 | 9.27 | 9.97 | 12.67 | 20.18 | 36.93 |
| Year Highest Occurred | 1993 | 1993 | 1978 | 1983 | 1998 | 1993 | 1992 | 1983 | 1976 | 1987 | 1985 | 1971 | 1993 |
| Lowest Precipitation (in.) | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.00 |
| Year Lowest Occurred | 1976 | 1972 | 1997 | 1993 | 2000 | 2000 | 2000 | 1997 | 1996 | 1999 | 1992 | 2000 | 1976 |
| Heating Degree Days (F) | 871. | 735. | 705. | 525. | 363. | 138. | 35. | 50. | 123. | 381. | 664. | 860. | 5450. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 6. | 27. | 60. | 139. | 153. | 67. | 10. | 0. | 0. | 462. |