December weather in Cynthiana, KY
The average temperature in Cynthiana in December is 36.5°F (27.4°F–45.7°F). Average precipitation: 4.13 inches.
December is a winter month in Cynthiana, and is cooler than the annual average of 54.8°F. Daily temperatures swing about 18.3°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 9h 20m. For travel, December is cool.
Avg High
45.7°F
Avg Low
27.4°F
Precipitation
4.13 in
Daylight
9h 20m
December records in Cynthiana
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 70.0°F (1998) | 0.0°F (2014) | 1.44 in (1974) |
| December 2 | 68.0°F (1982) | 17.1°F (1979) | 1.32 in (1986) |
| December 3 | 77.0°F (1982) | 12.0°F (1979) | 2.33 in (1991) |
| December 4 | 75.9°F (1982) | 12.0°F (1979) | 1.41 in (1964) |
| December 5 | 73.0°F (1998) | 10.9°F (2002) | 1.70 in (1922) |
| December 6 | 73.0°F (2001) | 8.1°F (2002) | 1.44 in (1971) |
| December 7 | 69.1°F (2004) | 0.0°F (2014) | 2.10 in (1919) |
| December 8 | 59.0°F (1994) | 0.0°F (2014) | 3.30 in (1924) |
| December 9 | 64.9°F (1980) | 10.0°F (1995) | 1.70 in (1972) |
| December 10 | 61.0°F (1987) | 6.1°F (1995) | 1.83 in (1966) |
| December 11 | 66.0°F (1985) | 14.0°F (2016) | 1.33 in (2021) |
| December 12 | 66.9°F (1979) | 10.0°F (1988) | 1.55 in (1964) |
| December 13 | 71.1°F (2015) | 0.0°F (2014) | 1.94 in (1949) |
| December 14 | 64.9°F (2015) | 0.0°F (2014) | 0.83 in (1956) |
| December 15 | 69.1°F (1984) | 0.0°F (2025) | 2.00 in (2011) |
| December 16 | 70.0°F (1984) | -8.0°F (1989) | 2.38 in (2000) |
| December 17 | 70.0°F (1984) | -11.9°F (1989) | 2.45 in (1933) |
| December 18 | 71.1°F (1984) | -6.0°F (1989) | 2.24 in (2016) |
| December 19 | 63.0°F (2021) | 3.0°F (1981) | 1.29 in (2025) |
| December 20 | 63.0°F (2021) | -0.9°F (1981) | 0.88 in (1957) |
| December 21 | 63.0°F (2013) | -2.0°F (1981) | 1.08 in (2012) |
| December 22 | 71.1°F (2013) | -20.0°F (1989) | 2.20 in (1970) |
| December 23 | 71.1°F (2013) | -20.9°F (1989) | 0.90 in (1921) |
| December 24 | 71.1°F (2013) | -16.1°F (1989) | 3.15 in (1921) |
| December 25 | 69.1°F (1982) | -9.0°F (1983) | 0.86 in (1964) |
| December 26 | 71.1°F (2021) | 1.9°F (1983) | 2.05 in (1987) |
| December 27 | 73.0°F (2016) | 3.0°F (1989) | 1.23 in (1938) |
| December 28 | 70.0°F (2021) | 10.0°F (1999) | 1.42 in (2015) |
| December 29 | 72.0°F (2025) | 6.1°F (1993) | 0.75 in (2012) |
| December 30 | 68.0°F (1984) | -0.9°F (1983) | 1.53 in (2019) |
| December 31 | 73.0°F (1951) | -0.9°F (1983) | 1.90 in (1990) |