| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 47.5 | 52.8 | 57.4 | 64.7 | 72.1 | 81.6 | 89.9 | 90.6 | 84.2 | 73.2 | 57.2 | 47.9 | 68.3 |
| Highest Mean Max. Temperature (F) | 54.8 | 63.0 | 68.4 | 73.3 | 80.2 | 88.7 | 95.7 | 96.9 | 92.4 | 80.9 | 68.4 | 56.2 | 96.9 |
| Year Highest Occurred | 1986 | 1977 | 1972 | 1977 | 1992 | 1981 | 1981 | 1981 | 1974 | 1988 | 1976 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 41.5 | 43.2 | 47.6 | 53.4 | 58.5 | 70.4 | 84.1 | 85.7 | 74.4 | 66.8 | 45.8 | 38.2 | 38.2 |
| Year Lowest Occurred | 1995 | 1998 | 1991 | 1975 | 1998 | 1998 | 1995 | 1976 | 1986 | 1981 | 1994 | 1971 | 1971 |
| Mean Temperature (F) | 37.7 | 41.3 | 45.3 | 51.1 | 57.7 | 65.7 | 72.7 | 72.6 | 66.8 | 57.2 | 44.5 | 37.6 | 54.2 |
| Highest Mean Temperature (F) | 44.3 | 48.7 | 52.1 | 57.7 | 65.8 | 70.8 | 76.8 | 76.8 | 71.7 | 63.5 | 50.7 | 44.1 | 76.8 |
| Year Highest Occurred | 1986 | 1991 | 1997 | 1992 | 1992 | 1981 | 1981 | 1981 | 1991 | 1978 | 1995 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 32.0 | 36.2 | 38.3 | 41.8 | 48.5 | 58.8 | 66.8 | 65.5 | 59.6 | 50.9 | 36.8 | 29.0 | 29.0 |
| Year Lowest Occurred | 1972 | 1998 | 1991 | 1975 | 1998 | 1998 | 1983 | 1976 | 1986 | 1971 | 1994 | 1971 | 1971 |
| Mean Min. Temperature (F) | 27.8 | 29.8 | 33.1 | 37.4 | 43.2 | 49.8 | 55.4 | 54.6 | 49.4 | 41.1 | 31.8 | 27.2 | 40.1 |
| Highest Mean Min. Temperature (F) | 33.8 | 35.8 | 39.3 | 44.4 | 51.3 | 55.3 | 61.1 | 60.5 | 55.5 | 49.4 | 36.1 | 32.7 | 61.1 |
| Year Highest Occurred | 1986 | 1995 | 1997 | 1992 | 1992 | 1987 | 1996 | 1996 | 1991 | 1987 | 1995 | 1995 | 1996 |
| Lowest Mean Min. Temperature (F) | 21.7 | 25.3 | 25.1 | 30.0 | 34.9 | 44.5 | 48.5 | 45.2 | 42.1 | 32.4 | 26.7 | 19.8 | 19.8 |
| Year Lowest Occurred | 1972 | 1990 | 1977 | 1976 | 1977 | 1971 | 1983 | 1976 | 1973 | 1971 | 1975 | 1971 | 1971 |
| Mean Precipitation (in.) | 6.73 | 6.92 | 5.80 | 2.57 | 1.58 | 0.79 | 0.51 | 0.21 | 0.92 | 2.27 | 4.66 | 4.77 | 37.73 |
| Highest Precipitation (in.) | 17.57 | 22.57 | 19.51 | 6.01 | 4.54 | 4.00 | 4.19 | 1.08 | 4.06 | 6.76 | 14.21 | 12.58 | 22.57 |
| Year Highest Occurred | 1997 | 1986 | 1991 | 1978 | 1998 | 1982 | 1992 | 1972 | 1978 | 1982 | 1983 | 1983 | 1986 |
| Lowest Precipitation (in.) | 0.08 | 0.80 | 0.01 | 0.18 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 | 0.00 | 0.00 |
| Year Lowest Occurred | 1984 | 1988 | 1972 | 1977 | 1985 | 1994 | 2000 | 1998 | 1995 | 1995 | 1992 | 1989 | 1985 |
| Heating Degree Days (F) | 849. | 664. | 612. | 429. | 266. | 88. | 16. | 13. | 74. | 283. | 614. | 851. | 4759. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 11. | 37. | 110. | 254. | 249. | 128. | 39. | 0. | 0. | 828. |