| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 55.6 | 58.1 | 60.4 | 66.3 | 73.9 | 82.8 | 89.6 | 89.2 | 84.2 | 74.6 | 60.7 | 55.4 | 70.9 |
| Highest Mean Max. Temperature (F) | 61.7 | 66.7 | 68.7 | 74.3 | 82.1 | 88.2 | 95.3 | 93.8 | 91.5 | 81.3 | 70.3 | 63.3 | 95.3 |
| Year Highest Occurred | 1984 | 1991 | 1972 | 1987 | 1992 | 1972 | 1972 | 1996 | 1974 | 1978 | 1976 | 1989 | 1972 |
| Lowest Mean Max. Temperature (F) | 50.5 | 49.2 | 51.4 | 57.9 | 60.0 | 73.4 | 84.5 | 81.0 | 75.2 | 67.6 | 52.4 | 47.3 | 47.3 |
| Year Lowest Occurred | 1998 | 1998 | 1991 | 1983 | 1998 | 1998 | 1983 | 1976 | 1985 | 1984 | 1973 | 1971 | 1971 |
| Mean Temperature (F) | 45.4 | 47.5 | 49.4 | 54.1 | 61.0 | 69.1 | 75.2 | 74.2 | 69.5 | 60.9 | 49.7 | 44.9 | 58.4 |
| Highest Mean Temperature (F) | 50.7 | 53.9 | 55.1 | 61.0 | 67.9 | 75.1 | 81.4 | 78.6 | 76.0 | 66.0 | 56.4 | 50.8 | 81.4 |
| Year Highest Occurred | 1986 | 1991 | 1972 | 1987 | 1992 | 1972 | 1972 | 1971 | 1974 | 1988 | 1976 | 1980 | 1972 |
| Lowest Mean Temperature (F) | 42.1 | 42.6 | 42.9 | 46.8 | 51.2 | 62.3 | 70.0 | 67.6 | 62.7 | 55.5 | 43.1 | 38.3 | 38.3 |
| Year Lowest Occurred | 1982 | 1998 | 1991 | 1975 | 1998 | 1998 | 1983 | 1976 | 1986 | 1984 | 1994 | 1972 | 1972 |
| Mean Min. Temperature (F) | 35.2 | 36.9 | 38.4 | 41.8 | 48.0 | 55.3 | 60.7 | 59.1 | 54.7 | 47.1 | 38.6 | 34.3 | 45.8 |
| Highest Mean Min. Temperature (F) | 40.4 | 41.2 | 43.7 | 47.6 | 53.7 | 62.0 | 67.5 | 64.4 | 61.0 | 51.7 | 43.3 | 39.6 | 67.5 |
| Year Highest Occurred | 1986 | 1991 | 1978 | 1987 | 1992 | 1972 | 1972 | 1971 | 1975 | 1991 | 1981 | 1981 | 1972 |
| Lowest Mean Min. Temperature (F) | 31.1 | 31.1 | 33.6 | 34.7 | 42.3 | 50.5 | 54.4 | 54.1 | 49.2 | 42.1 | 32.6 | 26.4 | 26.4 |
| Year Lowest Occurred | 1982 | 1990 | 1977 | 1975 | 1998 | 1999 | 2000 | 1976 | 1972 | 1972 | 1994 | 1972 | 1972 |
| Mean Precipitation (in.) | 8.77 | 8.43 | 7.70 | 3.19 | 1.70 | 0.59 | 0.19 | 0.23 | 1.08 | 2.58 | 6.44 | 7.02 | 47.92 |
| Highest Precipitation (in.) | 22.50 | 24.76 | 19.98 | 8.80 | 6.81 | 3.13 | 3.55 | 2.16 | 4.00 | 8.57 | 18.28 | 26.42 | 26.42 |
| Year Highest Occurred | 1995 | 1986 | 1989 | 1982 | 1998 | 1993 | 1974 | 1976 | 1986 | 1982 | 1973 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.35 | 0.42 | 0.90 | 0.18 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.62 | 0.00 | 0.00 |
| Year Lowest Occurred | 1984 | 1997 | 1976 | 1977 | 1985 | 1990 | 2000 | 2000 | 1999 | 1995 | 1995 | 1989 | 1985 |
| Heating Degree Days (F) | 607. | 491. | 483. | 341. | 191. | 53. | 11. | 6. | 51. | 190. | 463. | 625. | 3512. |
| Cooling Degree Days (F) | 0. | 0. | 1. | 12. | 66. | 174. | 325. | 291. | 184. | 61. | 2. | 0. | 1116. |