| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 65.8 | 66.3 | 66.3 | 68.7 | 69.3 | 72.2 | 75.8 | 77.5 | 77.0 | 74.0 | 69.9 | 66.3 | 70.8 |
| Highest Mean Max. Temperature (F) | 70.3 | 71.3 | 70.5 | 73.4 | 74.5 | 78.0 | 81.8 | 82.8 | 83.7 | 78.8 | 76.5 | 71.3 | 83.7 |
| Year Highest Occurred | 1986 | 1977 | 1984 | 1992 | 1978 | 1981 | 1984 | 1983 | 1984 | 1982 | 1976 | 1976 | 1984 |
| Lowest Mean Max. Temperature (F) | 61.8 | 61.5 | 62.9 | 64.1 | 64.4 | 66.9 | 71.6 | 72.7 | 71.4 | 69.5 | 65.7 | 61.7 | 61.5 |
| Year Lowest Occurred | 1971 | 1971 | 1991 | 1975 | 1999 | 1999 | 1987 | 1999 | 1999 | 2000 | 1994 | 1971 | 1971 |
| Mean Temperature (F) | 57.8 | 58.9 | 60.0 | 62.6 | 64.6 | 67.4 | 70.9 | 72.5 | 71.6 | 67.6 | 61.8 | 57.6 | 64.4 |
| Highest Mean Temperature (F) | 61.3 | 63.5 | 64.3 | 67.0 | 68.7 | 72.9 | 77.2 | 77.4 | 78.9 | 72.2 | 66.8 | 63.3 | 78.9 |
| Year Highest Occurred | 1981 | 1980 | 1978 | 1992 | 1997 | 1981 | 1984 | 1983 | 1984 | 1983 | 1976 | 1977 | 1984 |
| Lowest Mean Temperature (F) | 54.3 | 55.2 | 56.5 | 58.7 | 60.5 | 62.8 | 67.1 | 68.0 | 66.9 | 64.3 | 56.4 | 53.9 | 53.9 |
| Year Lowest Occurred | 1971 | 1990 | 1991 | 1975 | 1999 | 1999 | 1987 | 1999 | 1986 | 1996 | 1994 | 1987 | 1987 |
| Mean Min. Temperature (F) | 49.7 | 51.5 | 53.6 | 56.4 | 59.8 | 62.6 | 65.9 | 67.4 | 66.1 | 61.2 | 53.6 | 48.9 | 58.1 |
| Highest Mean Min. Temperature (F) | 54.9 | 56.3 | 58.3 | 60.5 | 63.8 | 67.7 | 72.6 | 72.9 | 74.0 | 66.5 | 58.1 | 57.6 | 74.0 |
| Year Highest Occurred | 1980 | 1980 | 1978 | 1992 | 1997 | 1981 | 1984 | 1984 | 1984 | 1983 | 1983 | 1977 | 1984 |
| Lowest Mean Min. Temperature (F) | 44.9 | 47.1 | 50.1 | 53.1 | 56.5 | 58.7 | 62.5 | 63.3 | 61.9 | 57.1 | 47.1 | 45.5 | 44.9 |
| Year Lowest Occurred | 1989 | 1990 | 1991 | 1999 | 1991 | 1999 | 1987 | 1999 | 1986 | 1971 | 1994 | 1990 | 1989 |
| Mean Precipitation (in.) | 2.28 | 2.04 | 2.26 | 0.75 | 0.20 | 0.09 | 0.03 | 0.09 | 0.21 | 0.44 | 1.07 | 1.31 | 10.77 |
| Highest Precipitation (in.) | 9.09 | 7.65 | 6.96 | 3.71 | 1.79 | 0.87 | 0.24 | 2.13 | 1.04 | 1.74 | 4.92 | 4.55 | 9.09 |
| Year Highest Occurred | 1993 | 1998 | 1991 | 1988 | 1977 | 1990 | 1991 | 1977 | 1986 | 1987 | 1985 | 1984 | 1993 |
| Lowest Precipitation (in.) | 0.00 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 |
| Year Lowest Occurred | 1976 | 1974 | 1997 | 1993 | 2000 | 2000 | 2000 | 1999 | 2000 | 1999 | 1980 | 2000 | 1976 |
| Heating Degree Days (F) | 227. | 176. | 160. | 90. | 47. | 10. | 0. | 0. | 1. | 12. | 109. | 231. | 1063. |
| Cooling Degree Days (F) | 2. | 4. | 5. | 17. | 32. | 81. | 183. | 230. | 199. | 97. | 15. | 1. | 866. |