| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 41.3 | 46.0 | 53.2 | 61.5 | 70.2 | 80.2 | 80.7 | 78.0 | 72.6 | 62.7 | 49.8 | 42.3 | 61.5 |
| Highest Mean Max. Temperature (F) | 48.4 | 53.0 | 62.1 | 68.2 | 79.2 | 85.6 | 85.2 | 81.5 | 77.5 | 68.0 | 58.3 | 49.2 | 85.6 |
| Year Highest Occurred | 1986 | 2000 | 1972 | 1989 | 2000 | 1990 | 2000 | 2000 | 2000 | 1999 | 1999 | 1980 | 1990 |
| Lowest Mean Max. Temperature (F) | 34.9 | 39.1 | 46.8 | 54.8 | 65.5 | 77.2 | 76.6 | 74.9 | 68.3 | 54.7 | 42.3 | 36.6 | 34.9 |
| Year Lowest Occurred | 1979 | 1998 | 1973 | 1983 | 1992 | 1973 | 1990 | 1993 | 1996 | 1984 | 2000 | 1997 | 1979 |
| Mean Temperature (F) | 31.0 | 34.2 | 39.8 | 46.7 | 55.1 | 65.3 | 66.8 | 64.9 | 59.6 | 50.0 | 38.0 | 31.1 | 48.5 |
| Highest Mean Temperature (F) | 35.7 | 39.3 | 46.5 | 53.7 | 62.8 | 70.1 | 70.1 | 67.4 | 62.7 | 54.5 | 44.6 | 36.0 | 70.1 |
| Year Highest Occurred | 2000 | 2000 | 1972 | 1989 | 1996 | 1990 | 1980 | 2000 | 1998 | 1988 | 1995 | 1980 | 1990 |
| Lowest Mean Temperature (F) | 26.2 | 29.5 | 34.9 | 41.1 | 51.7 | 62.8 | 64.6 | 62.7 | 56.4 | 44.7 | 30.8 | 26.7 | 26.2 |
| Year Lowest Occurred | 1992 | 1998 | 1973 | 1983 | 1995 | 1983 | 1990 | 1990 | 1985 | 1971 | 1992 | 1997 | 1992 |
| Mean Min. Temperature (F) | 20.6 | 22.3 | 26.4 | 31.8 | 40.0 | 50.4 | 52.9 | 51.8 | 46.6 | 37.2 | 26.2 | 19.9 | 35.5 |
| Highest Mean Min. Temperature (F) | 24.6 | 27.8 | 32.0 | 39.1 | 46.7 | 54.8 | 55.7 | 53.9 | 49.3 | 41.9 | 32.6 | 24.5 | 55.7 |
| Year Highest Occurred | 2000 | 1996 | 1989 | 1989 | 1996 | 1994 | 1996 | 1982 | 1997 | 1988 | 1995 | 1995 | 1996 |
| Lowest Mean Min. Temperature (F) | 16.9 | 16.5 | 21.3 | 27.0 | 35.8 | 47.0 | 49.3 | 49.2 | 43.7 | 32.3 | 18.9 | 15.0 | 15.0 |
| Year Lowest Occurred | 1992 | 1974 | 1977 | 1975 | 1995 | 1999 | 1987 | 1979 | 1985 | 1986 | 1992 | 1999 | 1999 |
| Mean Precipitation (in.) | 1.07 | 0.93 | 1.35 | 0.43 | 0.73 | 0.63 | 3.08 | 2.58 | 1.59 | 1.27 | 0.76 | 0.93 | 15.35 |
| Highest Precipitation (in.) | 2.62 | 3.09 | 3.40 | 1.99 | 5.21 | 1.90 | 10.02 | 7.12 | 3.59 | 4.52 | 2.14 | 2.72 | 10.02 |
| Year Highest Occurred | 1979 | 1980 | 1981 | 1990 | 1992 | 1986 | 1998 | 1993 | 1990 | 1972 | 1978 | 1984 | 1998 |
| Lowest Precipitation (in.) | 0.10 | 0.04 | 0.04 | 0.00 | 0.00 | 0.00 | 0.52 | 1.24 | 0.10 | 0.02 | 0.01 | 0.00 | 0.00 |
| Year Lowest Occurred | 1972 | 1999 | 1972 | 1993 | 2000 | 1989 | 1993 | 1989 | 1993 | 1995 | 1999 | 1996 | 1993 |
| Heating Degree Days (F) | 1056. | 864. | 782. | 551. | 317. | 62. | 24. | 44. | 170. | 467. | 810. | 1050. | 6197. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 10. | 71. | 80. | 41. | 8. | 0. | 0. | 0. | 210. |