December weather in St. Marks, FL
The average temperature in St. Marks in December is 54.4°F (42.9°F–65.9°F). Average precipitation: 4.24 inches.
December is a winter month in St. Marks, and is cooler than the annual average of 68.5°F. Daily temperatures swing about 23°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 10h 4m. For travel, December is a comfortable month to visit.
Avg High
65.9°F
Avg Low
42.9°F
Precipitation
4.24 in
Daylight
10h 4m
December records in St. Marks
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 80.1°F (1940) | 19.9°F (1979) | 1.85 in (2018) |
| December 2 | 82.9°F (1982) | 21.9°F (1999) | 5.34 in (2009) |
| December 3 | 81.0°F (1982) | 23.0°F (1988) | 5.04 in (1964) |
| December 4 | 82.0°F (1978) | 19.0°F (1974) | 4.49 in (1964) |
| December 5 | 82.0°F (2013) | 21.0°F (1974) | 2.48 in (2016) |
| December 6 | 82.9°F (1942) | 24.1°F (2000) | 4.26 in (1979) |
| December 7 | 84.0°F (2013) | 21.9°F (1962) | 2.44 in (1996) |
| December 8 | 82.0°F (2022) | 21.0°F (2010) | 4.04 in (1948) |
| December 9 | 81.0°F (1943) | 21.0°F (2006) | 1.63 in (1986) |
| December 10 | 82.9°F (1997) | 19.9°F (1974) | 2.94 in (1967) |
| December 11 | 81.0°F (2021) | 21.0°F (1968) | 2.00 in (1983) |
| December 12 | 82.0°F (1971) | 18.0°F (1962) | 3.30 in (1985) |
| December 13 | 82.0°F (2015) | 10.0°F (1962) | 1.78 in (1985) |
| December 14 | 81.0°F (2001) | 19.0°F (1962) | 3.21 in (2018) |
| December 15 | 81.0°F (1948) | 19.9°F (1944) | 1.82 in (1973) |
| December 16 | 84.0°F (1971) | 19.0°F (1968) | 1.29 in (1973) |
| December 17 | 82.9°F (1971) | 19.0°F (1945) | 2.18 in (2023) |
| December 18 | 82.0°F (1967) | 17.1°F (1943) | 1.27 in (1961) |
| December 19 | 80.1°F (1967) | 19.0°F (1988) | 2.95 in (1990) |
| December 20 | 81.0°F (1967) | 15.1°F (1981) | 1.48 in (1974) |
| December 21 | 80.1°F (1967) | 15.1°F (1981) | 3.05 in (1972) |
| December 22 | 81.0°F (1984) | 19.9°F (1973) | 1.55 in (2019) |
| December 23 | 82.0°F (2015) | 17.1°F (1973) | 7.44 in (2014) |
| December 24 | 80.1°F (2016) | 12.9°F (1989) | 3.95 in (1978) |
| December 25 | 82.0°F (2016) | 14.0°F (1983) | 3.72 in (2006) |
| December 26 | 82.9°F (2015) | 12.9°F (1985) | 1.64 in (1940) |
| December 27 | 81.0°F (2015) | 19.0°F (1970) | 1.11 in (1973) |
| December 28 | 81.0°F (1971) | 18.0°F (2010) | 1.71 in (2018) |
| December 29 | 80.1°F (1946) | 21.0°F (1977) | 1.40 in (2013) |
| December 30 | 82.0°F (2021) | 17.1°F (1961) | 1.33 in (1982) |
| December 31 | 81.0°F (2021) | 18.0°F (2000) | 3.51 in (1975) |