December weather in Grand Coteau, LA
The average temperature in Grand Coteau in December is 54.2°F (43.3°F–65.1°F). Average precipitation: 4.88 inches.
December is a winter month in Grand Coteau, and is cooler than the annual average of 68.3°F. Daily temperatures swing about 21.8°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 10h 3m. For travel, December is a comfortable month to visit.
Avg High
65.1°F
Avg Low
43.3°F
Precipitation
4.88 in
Daylight
10h 3m
December records in Grand Coteau
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 82.9°F (1913) | 25.0°F (1911) | 4.95 in (2023) |
| December 2 | 82.0°F (1921) | 24.1°F (1960) | 2.54 in (1955) |
| December 3 | 84.0°F (1933) | 24.1°F (1929) | 2.73 in (1994) |
| December 4 | 84.9°F (1916) | 27.0°F (1929) | 2.21 in (2016) |
| December 5 | 82.9°F (1956) | 24.1°F (2006) | 3.30 in (1950) |
| December 6 | 84.0°F (1916) | 25.0°F (1937) | 5.13 in (1971) |
| December 7 | 84.0°F (1969) | 18.0°F (1950) | 2.35 in (1927) |
| December 8 | 84.0°F (1956) | 23.0°F (2006) | 2.77 in (1899) |
| December 9 | 81.0°F (1926) | 19.0°F (1917) | 3.26 in (1947) |
| December 10 | 82.9°F (2007) | 23.0°F (1978) | 3.10 in (1899) |
| December 11 | 82.9°F (1969) | 23.0°F (1995) | 3.75 in (1964) |
| December 12 | 84.0°F (1933) | 19.9°F (1957) | 2.05 in (1911) |
| December 13 | 86.0°F (1933) | 12.0°F (1962) | 3.61 in (1940) |
| December 14 | 86.0°F (1933) | 23.0°F (1917) | 2.00 in (2005) |
| December 15 | 81.0°F (1922) | 21.0°F (1901) | 2.46 in (1902) |
| December 16 | 81.0°F (1924) | 19.0°F (1901) | 2.45 in (1959) |
| December 17 | 82.0°F (1924) | 21.9°F (1943) | 4.02 in (1959) |
| December 18 | 82.0°F (1908) | 19.9°F (1901) | 5.22 in (1995) |
| December 19 | 79.0°F (1941) | 19.9°F (1975) | 2.45 in (1956) |
| December 20 | 80.1°F (1998) | 19.0°F (1996) | 2.60 in (1928) |
| December 21 | 81.0°F (1982) | 18.0°F (1901) | 2.70 in (1923) |
| December 22 | 79.0°F (1931) | 12.9°F (1989) | 2.94 in (1942) |
| December 23 | 80.1°F (1931) | 8.1°F (1989) | 2.61 in (1970) |
| December 24 | 81.0°F (1931) | 9.0°F (1989) | 2.08 in (1973) |
| December 25 | 81.0°F (2015) | 10.9°F (1983) | 3.02 in (1926) |
| December 26 | 82.9°F (2015) | 14.0°F (1983) | 8.67 in (1982) |
| December 27 | 81.0°F (2015) | 21.9°F (2010) | 8.00 in (1912) |
| December 28 | 80.1°F (2016) | 19.9°F (1925) | 3.14 in (1915) |
| December 29 | 82.0°F (2021) | 17.1°F (1894) | 2.30 in (1924) |
| December 30 | 81.0°F (1964) | 15.1°F (1917) | 3.68 in (2006) |
| December 31 | 81.0°F (1984) | 14.0°F (1983) | 3.09 in (2016) |