| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 39.2 | 46.1 | 55.9 | 64.4 | 74.3 | 85.9 | 93.4 | 91.6 | 81.3 | 67.8 | 51.3 | 40.7 | 66.0 |
| Highest Mean Max. Temperature (F) | 47.1 | 57.7 | 63.2 | 74.6 | 80.6 | 92.4 | 97.6 | 95.6 | 87.3 | 74.5 | 62.7 | 47.7 | 97.6 |
| Year Highest Occurred | 2000 | 1995 | 1986 | 1992 | 1992 | 1994 | 1994 | 1994 | 1979 | 1988 | 1999 | 1977 | 1994 |
| Lowest Mean Max. Temperature (F) | 27.6 | 34.6 | 49.3 | 55.8 | 67.9 | 79.3 | 89.6 | 88.5 | 74.0 | 58.9 | 41.9 | 31.9 | 27.6 |
| Year Lowest Occurred | 1984 | 1989 | 1973 | 1975 | 1983 | 1998 | 1987 | 1987 | 1986 | 1984 | 2000 | 1985 | 1984 |
| Mean Temperature (F) | 30.9 | 36.2 | 44.8 | 52.0 | 60.6 | 70.0 | 76.9 | 75.3 | 65.8 | 53.9 | 41.2 | 32.3 | 53.3 |
| Highest Mean Temperature (F) | 39.0 | 44.4 | 50.5 | 59.5 | 65.5 | 74.8 | 79.9 | 79.1 | 71.5 | 59.9 | 48.6 | 39.8 | 79.9 |
| Year Highest Occurred | 2000 | 1995 | 1986 | 1992 | 1992 | 1994 | 1989 | 1994 | 1990 | 1988 | 1999 | 1977 | 1989 |
| Lowest Mean Temperature (F) | 21.2 | 26.0 | 38.5 | 45.5 | 55.7 | 64.6 | 73.0 | 71.8 | 61.3 | 47.5 | 33.6 | 24.6 | 21.2 |
| Year Lowest Occurred | 1984 | 1989 | 1976 | 1975 | 1983 | 1998 | 1993 | 1975 | 1986 | 1984 | 2000 | 1990 | 1984 |
| Mean Min. Temperature (F) | 22.5 | 26.2 | 33.7 | 39.6 | 46.9 | 54.0 | 60.4 | 58.9 | 50.3 | 40.0 | 31.0 | 23.9 | 40.6 |
| Highest Mean Min. Temperature (F) | 30.9 | 32.7 | 38.7 | 44.4 | 50.8 | 58.7 | 63.0 | 62.6 | 56.1 | 45.2 | 34.5 | 31.9 | 63.0 |
| Year Highest Occurred | 2000 | 2000 | 1978 | 1992 | 1987 | 1986 | 1988 | 2000 | 1990 | 1988 | 1999 | 1977 | 1988 |
| Lowest Mean Min. Temperature (F) | 13.6 | 15.6 | 26.5 | 35.1 | 42.0 | 49.8 | 55.9 | 54.2 | 45.8 | 36.1 | 24.7 | 14.7 | 13.6 |
| Year Lowest Occurred | 1989 | 1985 | 1976 | 1975 | 1975 | 1998 | 1993 | 1975 | 1971 | 1984 | 1993 | 1990 | 1989 |
| Mean Precipitation (in.) | 2.13 | 1.93 | 2.02 | 1.85 | 2.03 | 1.13 | 0.89 | 1.14 | 1.54 | 2.03 | 1.79 | 1.65 | 20.13 |
| Highest Precipitation (in.) | 4.83 | 3.93 | 3.61 | 4.56 | 5.11 | 4.14 | 2.80 | 4.38 | 6.53 | 5.05 | 4.20 | 6.00 | 6.53 |
| Year Highest Occurred | 1980 | 1983 | 1981 | 1999 | 1995 | 1998 | 1984 | 1983 | 1982 | 1981 | 1983 | 1983 | 1982 |
| Lowest Precipitation (in.) | 0.81 | 0.21 | 0.54 | 0.36 | 0.17 | 0.08 | 0.02 | 0.07 | 0.10 | 0.06 | 0.18 | 0.15 | 0.02 |
| Year Lowest Occurred | 1989 | 1988 | 1997 | 1977 | 1972 | 1994 | 2000 | 1996 | 1987 | 1999 | 1999 | 1989 | 2000 |
| Heating Degree Days (F) | 1059. | 809. | 627. | 399. | 178. | 34. | 0. | 2. | 77. | 349. | 716. | 1014. | 5264. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 9. | 41. | 183. | 369. | 319. | 101. | 6. | 0. | 0. | 1028. |