| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 35.6 | 42.0 | 50.2 | 58.4 | 67.7 | 77.8 | 87.6 | 86.8 | 75.4 | 61.7 | 45.3 | 36.2 | 60.4 |
| Highest Mean Max. Temperature (F) | 43.3 | 48.9 | 58.7 | 69.4 | 78.3 | 86.1 | 95.1 | 93.7 | 83.9 | 72.1 | 55.4 | 42.6 | 95.1 |
| Year Highest Occurred | 1998 | 1992 | 1992 | 1987 | 1992 | 1986 | 1985 | 1986 | 1990 | 1988 | 1999 | 1979 | 1985 |
| Lowest Mean Max. Temperature (F) | 24.4 | 32.0 | 44.2 | 48.1 | 61.7 | 70.5 | 76.5 | 79.2 | 66.1 | 56.9 | 36.9 | 25.6 | 24.4 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1993 | 1993 | 1976 | 1985 | 1984 | 1985 | 1985 | 1979 |
| Mean Temperature (F) | 28.8 | 34.1 | 40.7 | 47.0 | 54.7 | 63.5 | 72.0 | 71.8 | 62.2 | 50.8 | 37.7 | 29.3 | 49.4 |
| Highest Mean Temperature (F) | 36.8 | 41.2 | 47.1 | 53.8 | 62.4 | 69.5 | 78.4 | 76.3 | 69.6 | 60.0 | 46.4 | 35.6 | 78.4 |
| Year Highest Occurred | 1998 | 1992 | 1992 | 1987 | 1992 | 1986 | 1985 | 1986 | 1990 | 1988 | 1999 | 1979 | 1985 |
| Lowest Mean Temperature (F) | 16.9 | 23.1 | 34.6 | 39.0 | 50.3 | 58.1 | 62.1 | 66.2 | 54.5 | 47.3 | 28.2 | 16.1 | 16.1 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1993 | 1993 | 1976 | 1985 | 1985 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 22.0 | 26.2 | 31.1 | 35.5 | 41.7 | 49.1 | 56.3 | 56.8 | 48.9 | 39.9 | 30.1 | 22.4 | 38.3 |
| Highest Mean Min. Temperature (F) | 30.3 | 33.4 | 35.6 | 40.3 | 47.2 | 54.0 | 61.6 | 61.7 | 55.3 | 47.9 | 37.3 | 29.6 | 61.7 |
| Year Highest Occurred | 1998 | 1992 | 1978 | 1992 | 1993 | 1977 | 1985 | 1984 | 1990 | 1988 | 1999 | 1977 | 1984 |
| Lowest Mean Min. Temperature (F) | 9.4 | 14.1 | 24.9 | 29.9 | 38.0 | 44.4 | 47.7 | 51.5 | 42.9 | 36.3 | 19.5 | 6.5 | 6.5 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1999 | 1991 | 1993 | 1995 | 1985 | 1985 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 2.19 | 1.94 | 2.24 | 1.96 | 2.03 | 1.13 | 0.49 | 0.45 | 1.07 | 1.26 | 2.21 | 2.23 | 19.20 |
| Highest Precipitation (in.) | 4.37 | 6.18 | 5.29 | 4.50 | 7.14 | 2.91 | 1.66 | 2.75 | 4.37 | 3.96 | 5.07 | 6.83 | 7.14 |
| Year Highest Occurred | 1997 | 1986 | 1983 | 1978 | 1998 | 1993 | 1983 | 1979 | 1986 | 2000 | 1988 | 1996 | 1998 |
| Lowest Precipitation (in.) | 0.24 | 0.21 | 0.22 | 0.30 | 0.01 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.19 | 0.11 | 0.00 |
| Year Lowest Occurred | 1985 | 1997 | 1994 | 1977 | 1992 | 1994 | 1999 | 2000 | 1999 | 1988 | 1976 | 1989 | 1999 |
| Heating Degree Days (F) | 1121. | 866. | 756. | 543. | 330. | 132. | 24. | 25. | 158. | 442. | 820. | 1108. | 6325. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 11. | 85. | 240. | 236. | 74. | 2. | 0. | 0. | 648. |