| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 36.4 | 41.8 | 48.6 | 56.3 | 64.6 | 73.0 | 81.0 | 80.8 | 73.6 | 62.3 | 45.5 | 37.1 | 58.4 |
| Highest Mean Max. Temperature (F) | 42.0 | 51.9 | 57.1 | 65.9 | 76.2 | 77.8 | 87.2 | 86.5 | 81.7 | 73.4 | 54.1 | 43.2 | 87.2 |
| Year Highest Occurred | 1981 | 1991 | 1992 | 1987 | 1992 | 2000 | 1994 | 1998 | 1991 | 1988 | 1976 | 1989 | 1994 |
| Lowest Mean Max. Temperature (F) | 29.5 | 32.9 | 42.7 | 47.8 | 56.7 | 67.8 | 73.0 | 71.8 | 64.2 | 53.7 | 35.1 | 31.9 | 29.5 |
| Year Lowest Occurred | 1993 | 1989 | 1971 | 1975 | 1998 | 1983 | 1983 | 1976 | 1986 | 1984 | 1994 | 1984 | 1993 |
| Mean Temperature (F) | 28.5 | 32.9 | 38.0 | 43.1 | 49.4 | 56.2 | 62.4 | 61.8 | 55.2 | 46.2 | 35.4 | 29.0 | 44.8 |
| Highest Mean Temperature (F) | 34.6 | 41.2 | 43.4 | 49.3 | 57.2 | 60.1 | 66.5 | 65.1 | 60.3 | 53.2 | 41.9 | 34.4 | 66.5 |
| Year Highest Occurred | 1986 | 1991 | 1992 | 1990 | 1992 | 1992 | 1994 | 1986 | 1991 | 1988 | 1995 | 1981 | 1994 |
| Lowest Mean Temperature (F) | 20.4 | 22.4 | 32.2 | 36.7 | 44.4 | 52.7 | 56.3 | 57.3 | 49.5 | 41.5 | 25.4 | 22.4 | 20.4 |
| Year Lowest Occurred | 1993 | 1989 | 1999 | 1975 | 1977 | 1976 | 1983 | 1976 | 1985 | 1984 | 1994 | 1984 | 1993 |
| Mean Min. Temperature (F) | 20.5 | 23.9 | 27.4 | 29.9 | 34.1 | 39.3 | 43.7 | 42.8 | 36.7 | 30.1 | 25.3 | 20.8 | 31.2 |
| Highest Mean Min. Temperature (F) | 28.1 | 31.5 | 33.2 | 33.6 | 38.1 | 43.1 | 46.5 | 46.9 | 40.1 | 35.4 | 30.7 | 28.1 | 46.9 |
| Year Highest Occurred | 1978 | 1986 | 1983 | 1992 | 1992 | 1992 | 1998 | 1977 | 1979 | 1979 | 1995 | 1981 | 1977 |
| Lowest Mean Min. Temperature (F) | 10.5 | 12.0 | 21.2 | 25.5 | 30.5 | 35.6 | 38.7 | 39.3 | 33.5 | 27.1 | 15.7 | 12.9 | 10.5 |
| Year Lowest Occurred | 1977 | 1989 | 1999 | 1975 | 1999 | 1976 | 1993 | 1980 | 1971 | 1999 | 1994 | 1990 | 1977 |
| Mean Precipitation (in.) | 3.15 | 2.57 | 2.21 | 1.41 | 1.18 | 0.59 | 0.47 | 0.58 | 0.62 | 1.17 | 2.87 | 3.37 | 20.19 |
| Highest Precipitation (in.) | 7.15 | 6.58 | 5.42 | 3.07 | 3.57 | 1.91 | 2.65 | 2.44 | 2.21 | 2.74 | 7.49 | 8.45 | 8.45 |
| Year Highest Occurred | 1996 | 1986 | 1983 | 2000 | 1990 | 1988 | 1987 | 1976 | 1986 | 1984 | 1998 | 1981 | 1981 |
| Lowest Precipitation (in.) | 0.08 | 0.14 | 0.12 | 0.15 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.57 | 0.26 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 1994 | 1986 | 1992 | 1999 | 1988 | 1998 | 1999 | 1987 | 1976 | 1976 | 1999 |
| Heating Degree Days (F) | 1133. | 901. | 839. | 658. | 485. | 270. | 133. | 128. | 306. | 582. | 888. | 1118. | 7441. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 5. | 51. | 29. | 11. | 0. | 0. | 0. | 96. |