| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 51.5 | 52.5 | 56.1 | 62.2 | 69.3 | 79.3 | 84.9 | 84.1 | 79.3 | 68.8 | 57.9 | 51.8 | 66.5 |
| Highest Mean Max. Temperature (F) | 58.7 | 61.4 | 74.9 | 72.3 | 79.0 | 87.1 | 88.7 | 88.8 | 85.8 | 76.0 | 65.6 | 63.2 | 88.8 |
| Year Highest Occurred | 1983 | 1972 | 1972 | 1985 | 1984 | 1981 | 1971 | 1971 | 1971 | 1988 | 1977 | 1981 | 1971 |
| Lowest Mean Max. Temperature (F) | 42.2 | 43.2 | 46.6 | 50.9 | 57.2 | 70.7 | 79.4 | 79.9 | 71.3 | 63.8 | 47.8 | 44.5 | 42.2 |
| Year Lowest Occurred | 1979 | 1998 | 1991 | 1975 | 1977 | 1998 | 1992 | 1976 | 1986 | 1994 | 1994 | 1992 | 1979 |
| Mean Temperature (F) | 43.3 | 44.1 | 46.3 | 51.2 | 57.6 | 67.3 | 73.1 | 73.1 | 68.2 | 59.0 | 49.1 | 43.7 | 56.3 |
| Highest Mean Temperature (F) | 49.9 | 51.4 | 58.1 | 59.7 | 67.4 | 74.1 | 77.4 | 77.4 | 72.0 | 66.2 | 56.0 | 50.9 | 77.4 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1989 | 1997 | 1981 | 1996 | 1981 | 2000 | 1988 | 1995 | 1981 | 1996 |
| Lowest Mean Temperature (F) | 35.6 | 37.8 | 37.4 | 40.5 | 47.3 | 60.2 | 66.6 | 67.6 | 59.5 | 54.0 | 40.5 | 34.5 | 34.5 |
| Year Lowest Occurred | 1979 | 1998 | 1973 | 1975 | 1977 | 1998 | 1987 | 1976 | 1986 | 1984 | 1994 | 1971 | 1971 |
| Mean Min. Temperature (F) | 35.0 | 35.6 | 36.5 | 40.1 | 45.9 | 55.3 | 61.3 | 62.1 | 57.1 | 49.1 | 40.2 | 35.6 | 46.2 |
| Highest Mean Min. Temperature (F) | 41.8 | 43.5 | 46.0 | 49.3 | 56.9 | 63.0 | 66.9 | 67.8 | 63.4 | 56.4 | 49.4 | 41.9 | 67.8 |
| Year Highest Occurred | 1986 | 1991 | 1997 | 1989 | 1997 | 1978 | 1996 | 2000 | 2000 | 1988 | 1995 | 1980 | 2000 |
| Lowest Mean Min. Temperature (F) | 26.7 | 30.6 | 26.7 | 30.0 | 37.3 | 49.0 | 52.5 | 55.3 | 47.1 | 40.9 | 33.1 | 24.0 | 24.0 |
| Year Lowest Occurred | 1973 | 1973 | 1973 | 1975 | 1977 | 1982 | 1987 | 1976 | 1985 | 1981 | 1994 | 1971 | 1971 |
| Mean Precipitation (in.) | 5.77 | 6.29 | 6.13 | 1.76 | 0.71 | 0.18 | 0.42 | 0.91 | 0.73 | 0.99 | 2.60 | 3.47 | 29.96 |
| Highest Precipitation (in.) | 32.93 | 19.89 | 26.86 | 6.10 | 5.42 | 1.70 | 3.05 | 7.26 | 6.42 | 4.04 | 8.29 | 11.00 | 32.93 |
| Year Highest Occurred | 1993 | 1980 | 1991 | 1983 | 1998 | 1972 | 1984 | 1992 | 1976 | 1974 | 1996 | 1974 | 1993 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 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 | 1974 | 1997 | 1993 | 1996 | 2000 | 2000 | 1999 | 1996 | 1999 | 1992 | 1988 | 1976 |
| Heating Degree Days (F) | 674. | 587. | 572. | 433. | 290. | 79. | 10. | 11. | 65. | 230. | 481. | 661. | 4093. |
| Cooling Degree Days (F) | 0. | 0. | 8. | 18. | 61. | 149. | 260. | 262. | 161. | 42. | 2. | 0. | 963. |