| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 46.8 | 50.8 | 55.7 | 60.5 | 67.0 | 73.1 | 79.9 | 80.5 | 75.5 | 64.2 | 52.4 | 46.2 | 62.7 |
| Highest Mean Max. Temperature (F) | 51.6 | 56.1 | 61.4 | 65.3 | 74.1 | 79.3 | 86.9 | 85.2 | 83.3 | 72.1 | 57.4 | 51.8 | 86.9 |
| Year Highest Occurred | 1986 | 1992 | 1992 | 1989 | 1992 | 1992 | 1985 | 1977 | 1974 | 1987 | 1995 | 1979 | 1985 |
| Lowest Mean Max. Temperature (F) | 38.7 | 43.3 | 50.8 | 55.1 | 60.8 | 68.1 | 72.5 | 75.9 | 68.5 | 58.6 | 45.2 | 39.7 | 38.7 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1980 | 1993 | 1975 | 1978 | 1984 | 1985 | 1990 | 1979 |
| Mean Temperature (F) | 39.8 | 43.0 | 46.9 | 50.5 | 56.0 | 61.2 | 66.2 | 66.5 | 61.9 | 53.4 | 45.3 | 39.9 | 52.6 |
| Highest Mean Temperature (F) | 44.7 | 47.7 | 51.4 | 54.6 | 61.3 | 65.7 | 70.2 | 70.1 | 66.2 | 57.0 | 50.6 | 44.1 | 70.2 |
| Year Highest Occurred | 1998 | 1991 | 1986 | 1992 | 1997 | 1992 | 1996 | 1997 | 1974 | 1987 | 1995 | 1979 | 1996 |
| Lowest Mean Temperature (F) | 31.7 | 35.4 | 43.1 | 45.6 | 51.5 | 57.4 | 62.7 | 62.4 | 57.9 | 50.1 | 37.6 | 33.5 | 31.7 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1976 | 1993 | 1973 | 1972 | 1984 | 1985 | 1990 | 1979 |
| Mean Min. Temperature (F) | 32.8 | 35.2 | 38.0 | 40.5 | 44.9 | 49.3 | 52.5 | 52.4 | 48.3 | 42.6 | 38.2 | 33.6 | 42.4 |
| Highest Mean Min. Temperature (F) | 39.1 | 39.8 | 42.0 | 45.3 | 48.9 | 52.7 | 56.6 | 56.8 | 53.7 | 46.8 | 43.9 | 37.6 | 56.8 |
| Year Highest Occurred | 1998 | 1998 | 1986 | 1992 | 1997 | 1986 | 1998 | 1997 | 1995 | 1988 | 1995 | 1974 | 1997 |
| Lowest Mean Min. Temperature (F) | 24.4 | 27.5 | 34.3 | 35.1 | 41.8 | 45.0 | 49.8 | 46.7 | 43.8 | 39.0 | 30.0 | 24.8 | 24.4 |
| Year Lowest Occurred | 1985 | 1989 | 1985 | 1982 | 1982 | 1976 | 1984 | 1973 | 1972 | 1972 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 7.17 | 6.46 | 5.37 | 4.26 | 3.31 | 2.42 | 0.87 | 1.15 | 2.18 | 4.03 | 8.16 | 8.00 | 53.38 |
| Highest Precipitation (in.) | 12.97 | 14.19 | 9.40 | 10.48 | 6.80 | 5.46 | 3.62 | 4.09 | 6.07 | 8.26 | 17.62 | 17.83 | 17.83 |
| Year Highest Occurred | 1996 | 1996 | 1974 | 1993 | 1998 | 1984 | 1983 | 1978 | 1977 | 1979 | 1973 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.48 | 2.18 | 2.06 | 1.70 | 0.13 | 0.94 | 0.00 | 0.00 | 0.03 | 0.13 | 1.68 | 2.46 | 0.00 |
| Year Lowest Occurred | 1985 | 1973 | 1978 | 1973 | 1992 | 1972 | 1973 | 1994 | 1999 | 1987 | 1993 | 1976 | 1973 |
| Heating Degree Days (F) | 781. | 616. | 564. | 435. | 285. | 140. | 51. | 44. | 132. | 360. | 592. | 778. | 4778. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 5. | 26. | 89. | 88. | 38. | 1. | 0. | 0. | 247. |