| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 46.5 | 50.6 | 56.3 | 63.3 | 71.7 | 81.0 | 83.6 | 80.7 | 76.6 | 68.1 | 54.8 | 47.8 | 65.1 |
| Highest Mean Max. Temperature (F) | 56.0 | 58.1 | 64.7 | 69.2 | 81.2 | 87.1 | 91.6 | 85.8 | 82.0 | 75.1 | 64.2 | 60.0 | 91.6 |
| Year Highest Occurred | 1986 | 1999 | 1972 | 1989 | 1974 | 1990 | 1980 | 1980 | 2000 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 39.0 | 41.0 | 51.1 | 52.8 | 66.5 | 75.2 | 78.5 | 71.7 | 72.8 | 56.3 | 44.4 | 41.7 | 39.0 |
| Year Lowest Occurred | 1979 | 1982 | 1987 | 1973 | 1980 | 1995 | 1981 | 1981 | 1991 | 1984 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 31.4 | 35.0 | 40.5 | 47.0 | 55.5 | 64.3 | 67.7 | 65.7 | 60.3 | 50.8 | 38.9 | 32.5 | 49.1 |
| Highest Mean Temperature (F) | 37.7 | 41.2 | 45.9 | 53.3 | 62.2 | 68.9 | 72.9 | 68.7 | 63.7 | 55.7 | 44.8 | 41.2 | 72.9 |
| Year Highest Occurred | 1986 | 1976 | 1989 | 1981 | 1996 | 1990 | 1980 | 1980 | 2000 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 25.2 | 28.9 | 36.2 | 38.1 | 51.9 | 60.7 | 65.1 | 61.7 | 56.9 | 44.0 | 30.7 | 25.9 | 25.2 |
| Year Lowest Occurred | 1979 | 1982 | 1977 | 1973 | 1995 | 1995 | 1975 | 1981 | 1974 | 1984 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 16.2 | 19.3 | 24.6 | 30.7 | 39.3 | 47.5 | 51.7 | 50.7 | 44.0 | 33.4 | 23.0 | 17.1 | 33.1 |
| Highest Mean Min. Temperature (F) | 22.6 | 25.9 | 29.2 | 37.5 | 44.0 | 51.8 | 55.0 | 53.5 | 48.3 | 36.6 | 29.2 | 22.5 | 55.0 |
| Year Highest Occurred | 1999 | 2000 | 1974 | 1981 | 1996 | 1981 | 1981 | 1995 | 1997 | 1972 | 1998 | 1977 | 1981 |
| Lowest Mean Min. Temperature (F) | 11.4 | 15.0 | 19.8 | 23.3 | 34.2 | 44.4 | 49.0 | 45.0 | 39.6 | 29.7 | 17.0 | 10.1 | 10.1 |
| Year Lowest Occurred | 1979 | 1985 | 1977 | 1973 | 1975 | 1976 | 1995 | 1974 | 1974 | 1976 | 1972 | 1983 | 1983 |
| Mean Precipitation (in.) | 0.48 | 0.54 | 0.96 | 1.26 | 2.13 | 2.18 | 2.68 | 3.47 | 2.01 | 1.05 | 0.75 | 0.43 | 17.94 |
| Highest Precipitation (in.) | 1.63 | 2.86 | 3.40 | 5.80 | 5.50 | 5.20 | 4.76 | 8.29 | 4.50 | 3.47 | 2.71 | 1.34 | 8.29 |
| Year Highest Occurred | 1983 | 1987 | 1973 | 1999 | 1995 | 1995 | 1971 | 1993 | 1972 | 2000 | 1978 | 1974 | 1993 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.04 | 0.00 | 0.00 | 0.00 | 0.43 | 1.12 | 0.38 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 2000 | 1989 | 1996 | 1998 | 1998 | 1993 | 1973 | 2000 | 1995 | 1999 | 1981 | 1998 |
| Heating Degree Days (F) | 1044. | 843. | 761. | 539. | 303. | 79. | 19. | 44. | 159. | 443. | 784. | 1010. | 6028. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 9. | 57. | 100. | 66. | 17. | 0. | 0. | 0. | 249. |