December weather in Harahan, LA
The average temperature in Harahan in December is 57.7°F (49.0°F–66.4°F). Average precipitation: 4.51 inches.
December is a winter month in Harahan, and is cooler than the annual average of 71.8°F. Daily temperatures swing about 17.4°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 10h 5m. For travel, December is a comfortable month to visit.
Avg High
66.4°F
Avg Low
49.0°F
Precipitation
4.51 in
Daylight
10h 5m
December records in Harahan
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 84.0°F (1991) | 28.0°F (1911) | 2.60 in (1896) |
| December 2 | 82.9°F (1922) | 30.0°F (1960) | 6.89 in (2023) |
| December 3 | 84.0°F (1921) | 26.1°F (1929) | 2.46 in (1990) |
| December 4 | 82.9°F (2013) | 28.0°F (1929) | 2.98 in (1978) |
| December 5 | 84.0°F (1977) | 25.0°F (1895) | 1.93 in (2025) |
| December 6 | 82.9°F (2013) | 28.0°F (1895) | 3.38 in (1912) |
| December 7 | 82.9°F (1951) | 24.1°F (1937) | 2.14 in (1932) |
| December 8 | 82.9°F (1922) | 28.9°F (1910) | 4.29 in (2009) |
| December 9 | 82.9°F (1991) | 21.9°F (1917) | 3.40 in (1967) |
| December 10 | 84.9°F (1939) | 28.9°F (1898) | 2.30 in (1947) |
| December 11 | 84.0°F (1931) | 27.0°F (1934) | 4.06 in (1920) |
| December 12 | 82.9°F (1949) | 21.0°F (1957) | 7.22 in (2009) |
| December 13 | 82.9°F (1929) | 18.0°F (1962) | 3.06 in (1940) |
| December 14 | 82.9°F (1927) | 25.0°F (1901) | 2.95 in (2009) |
| December 15 | 81.0°F (1971) | 26.1°F (1901) | 4.42 in (2009) |
| December 16 | 82.0°F (1924) | 26.1°F (1943) | 2.63 in (1992) |
| December 17 | 82.9°F (1933) | 26.1°F (1932) | 3.30 in (1915) |
| December 18 | 80.1°F (1939) | 28.9°F (1904) | 2.24 in (1922) |
| December 19 | 81.0°F (2008) | 27.0°F (1975) | 2.10 in (1905) |
| December 20 | 80.1°F (1916) | 21.9°F (1929) | 4.31 in (1918) |
| December 21 | 81.0°F (1998) | 21.0°F (1901) | 6.12 in (2006) |
| December 22 | 82.0°F (1948) | 16.0°F (1989) | 4.63 in (1907) |
| December 23 | 82.0°F (1931) | 12.0°F (1989) | 2.45 in (1956) |
| December 24 | 82.9°F (1921) | 15.1°F (1989) | 2.24 in (1905) |
| December 25 | 82.0°F (2015) | 17.1°F (1983) | 4.10 in (1973) |
| December 26 | 82.0°F (2015) | 1.9°F (1923) | 3.33 in (1938) |
| December 27 | 81.0°F (2015) | 26.1°F (1935) | 3.77 in (1996) |
| December 28 | 80.1°F (1974) | 19.0°F (1894) | 3.60 in (1905) |
| December 29 | 80.1°F (1984) | 21.9°F (1894) | 2.65 in (1977) |
| December 30 | 81.0°F (1990) | 18.0°F (1917) | 4.30 in (1952) |
| December 31 | 82.0°F (2021) | 25.0°F (1983) | 2.56 in (2022) |