| DEC | Today's | Today's | Average | Average | Record | Record | Avg. Year-to-date | Year | Departure | Today's | Record | YTD | |||
| Date | High | Low | High | Low | High | Year | Low | Year | Precipitation | to date | From Avg. | Precip. | Precip. | Year | 20.78 |
| 1 | 63 | 39 | 44 | 28 | 72 | 1970 | 1 | 1893 | 35.99 | 20.78 | -15.21 | 1.07 | 1977 | ||
| 2 | 67 | 54 | 44 | 27 | 70 | 1982 | 1 | 1929 | 36.07 | 20.89 | -15.18 | 0.11 | 2.37 | 1967 | |
| 3 | 71 | 57 | 44 | 27 | 72 | 1970 | -7 | 1929 | 36.15 | 20.89 | -15.26 | 1.65 | 1982 | ||
| 4 | 63 | 37 | 43 | 27 | 71 | 1998 | -6 | 1893 | 36.22 | 21.14 | -15.08 | 0.25 | 1.64 | 1920 | |
| 5 | 49 | 35 | 43 | 26 | 70 | 1956 | 2 | 1895 | 36.30 | 21.14 | -15.16 | 1.48 | 1906 | ||
| 6 | 51 | 35 | 42 | 26 | 70 | 1980 | -2 | 1977 | 36.38 | 21.14 | -15.24 | 0.95 | 1957 | ||
| 7 | 51 | 44 | 42 | 25 | 67 | 1946 | -2 | 1976 | 36.46 | 21.34 | -15.12 | 0.20 | 1.55 | 1966 | |
| 8 | 46 | 41 | 42 | 25 | 68 | 1916 | -4 | 1909 | 36.54 | 21.36 | -15.18 | 0.02 | 1.22 | 1901 | |
| 9 | 50 | 40 | 41 | 25 | 70 | 1918 | -8 | 1917 | 36.62 | 21.62 | -15.00 | 0.26 | 0.81 | 1967 | |
| 10 | 40 | 27 | 41 | 24 | 66 | 1918 | -10 | 1917 | 36.70 | 21.62 | -15.08 | 2.17 | 1971 | ||
| 11 | 37 | 22 | 41 | 24 | 65 | 1949 | -12 | 1917 | 36.78 | 21.62 | -15.16 | 1.40 | 1983 | ||
| 12 | 46 | 25 | 40 | 24 | 65 | 1929 | -10 | 1962 | 36.85 | 21.62 | -15.23 | 1.75 | 1972 | ||
| 13 | 50 | 31 | 40 | 23 | 66 | 1975 | -8 | 1903 | 36.93 | 21.62 | -15.31 | 2.72 | 1901 | ||
| 14 | 53 | 32 | 39 | 23 | 65 | 1941 | -7 | 1901 | 37.01 | 21.62 | -15.39 | 0.86 | 1971 | ||
| 15 | 53 | 43 | 39 | 23 | 67 | 1948 | -13 | 1901 | 37.09 | 21.91 | -15.18 | 0.29 | 1.43 | 1971 | |
| 16 | 51 | 41 | 39 | 22 | 66 | 1984 | -10 | 1989 | 37.17 | 21.91 | -15.26 | 0.85 | 1992 | ||
| 17 | 43 | 35 | 39 | 22 | 62 | 1984 | -5 | 1989 | 37.25 | 21.96 | -15.29 | 0.05 | 1.46 | 1924 | |
| 18 | 51 | 34 | 38 | 22 | 65 | 1908 | -6 | 1981 | 37.33 | 21.96 | -15.37 | 2.85 | 1895 | ||
| 19 | 46 | 37 | 38 | 21 | 61 | 1957 | -15 | 1901 | 37.41 | 22.19 | -15.22 | 0.23 | 1.75 | 1895 | |
| 20 | 54 | 25 | 38 | 21 | 64 | 1988 | -15 | 1981 | 37.48 | 22.84 | -14.64 | 0.65 | 1.04 | 1973 | |
| 21 | 30 | 19 | 37 | 21 | 64 | 1941 | -16 | 1989 | 37.56 | 22.84 | -14.72 | 2.19 | 1949 | ||
| 22 | 38 | 16 | 37 | 21 | 61 | 1933 | -21 | 1989 | 37.64 | 22.84 | -14.80 | 0.96 | 1898 | ||
| 23 | 39 | 26 | 37 | 20 | 66 | 1933 | -20 | 1989 | 37.72 | 22.84 | -14.88 | 2.16 | 1988 | ||
| 24 | 35 | 24 | 37 | 20 | 64 | 1893 | -22 | 1983 | 37.80 | 22.84 | -14.96 | 1.48 | 2009 | ||
| 25 | 34 | 25 | 36 | 20 | 63 | 1982 | -17 | 1983 | 37.88 | 22.84 | -15.04 | 0.77 | 1982 | ||
| 26 | 34 | 29 | 36 | 20 | 65 | 1942 | -15 | 1914 | 37.96 | 22.84 | -15.12 | 0.75 | 1904 | ||
| 27 | 34 | 28 | 36 | 19 | 64 | 2008 | -7 | 1935 | 38.04 | 22.84 | -15.20 | 1.47 | 2008 | ||
| 28 | 35 | 30 | 36 | 19 | 71 | 1984 | -19 | 1924 | 38.11 | 22.84 | -15.27 | 1.50 | 1910 | ||
| 29 | 32 | 26 | 36 | 19 | 65 | 1984 | -7 | 1917 | 38.19 | 22.84 | -15.35 | 1.47 | 1990 | ||
| 30 | 39 | 16 | 35 | 19 | 64 | 1965 | -14 | 1983 | 38.27 | 22.84 | -15.43 | 1.41 | 1990 | ||
| 31 | 34 | 30 | 35 | 18 | 63 | 1951 | -15 | 1909 | 38.35 | 23.04 | -15.31 | 0.20 | 0.95 | 1965 |