December weather in Mer Rouge, LA
The average temperature in Mer Rouge in December is 46.2°F (36.3°F–56.2°F). Average precipitation: 5.19 inches.
December is a winter month in Mer Rouge, and is cooler than the annual average of 63.3°F. Daily temperatures swing about 19.9°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 9h 51m. For travel, December is a wet month.
Avg High
56.2°F
Avg Low
36.3°F
Precipitation
5.19 in
Daylight
9h 51m
December records in Mer Rouge
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 82.0°F (2006) | 21.0°F (1964) | 3.22 in (1895) |
| December 2 | 86.0°F (1943) | 21.0°F (1979) | 1.11 in (1955) |
| December 3 | 80.1°F (1921) | 24.1°F (1895) | 4.00 in (1983) |
| December 4 | 81.0°F (1995) | 21.0°F (1978) | 1.40 in (2002) |
| December 5 | 79.0°F (1998) | 19.9°F (2006) | 1.89 in (2011) |
| December 6 | 89.1°F (1922) | 19.0°F (1937) | 2.15 in (1969) |
| December 7 | 82.0°F (1939) | 18.0°F (1950) | 1.44 in (1940) |
| December 8 | 82.9°F (1894) | 17.1°F (2006) | 2.12 in (1947) |
| December 9 | 82.0°F (2007) | 16.0°F (2006) | 2.21 in (1923) |
| December 10 | 82.9°F (2007) | 15.1°F (1995) | 2.73 in (2008) |
| December 11 | 81.0°F (2007) | 15.1°F (1898) | 2.17 in (1985) |
| December 12 | 80.1°F (2007) | 14.0°F (1962) | 2.50 in (1961) |
| December 13 | 79.0°F (1896) | 10.0°F (1962) | 4.67 in (2001) |
| December 14 | 80.1°F (1984) | 17.1°F (1958) | 1.82 in (1979) |
| December 15 | 78.1°F (1984) | 15.1°F (1958) | 1.80 in (1967) |
| December 16 | 82.0°F (1924) | 1.0°F (1938) | 3.54 in (1948) |
| December 17 | 79.0°F (1924) | 12.9°F (1989) | 1.80 in (1971) |
| December 18 | 78.1°F (1895) | 17.1°F (1979) | 1.28 in (1897) |
| December 19 | 78.1°F (1977) | 16.0°F (1981) | 1.53 in (1995) |
| December 20 | 79.0°F (1971) | 16.0°F (1996) | 1.93 in (1992) |
| December 21 | 77.0°F (1949) | 16.0°F (1996) | 2.15 in (1990) |
| December 22 | 81.0°F (2010) | 3.9°F (1989) | 1.93 in (1956) |
| December 23 | 80.1°F (1896) | 3.0°F (1989) | 2.71 in (1937) |
| December 24 | 80.1°F (1964) | 3.0°F (1989) | 3.00 in (1973) |
| December 25 | 82.0°F (1955) | 5.0°F (1983) | 4.10 in (1982) |
| December 26 | 75.9°F (1942) | 12.0°F (1983) | 5.90 in (1982) |
| December 27 | 73.9°F (1984) | 16.0°F (2010) | 4.39 in (1942) |
| December 28 | 77.0°F (2005) | 7.0°F (1935) | 1.18 in (2000) |
| December 29 | 77.0°F (1923) | 10.0°F (1894) | 1.50 in (1969) |
| December 30 | 78.1°F (1964) | 10.0°F (1983) | 2.06 in (2006) |
| December 31 | 79.0°F (1951) | 10.0°F (1983) | 3.18 in (1944) |