December weather in St. Martinville, LA
The average temperature in St. Martinville in December is 54.0°F (44.2°F–63.8°F). Average precipitation: 5.17 inches.
December is a winter month in St. Martinville, and is cooler than the annual average of 67.8°F. Daily temperatures swing about 19.6°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 10h 4m. For travel, December is a wet month.
Avg High
63.8°F
Avg Low
44.2°F
Precipitation
5.17 in
Daylight
10h 4m
December records in St. Martinville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 79.3°F (2014) | 28.2°F (2010) | 4.88 in (2023) |
| December 2 | 80.1°F (2007) | 27.7°F (2008) | 0.60 in (2023) |
| December 3 | 79.9°F (2022) | 30.9°F (2025) | 0.70 in (2016) |
| December 4 | 79.3°F (2021) | 27.7°F (2006) | 4.46 in (2025) |
| December 5 | 81.5°F (2017) | 24.8°F (2006) | 1.78 in (2024) |
| December 6 | 80.6°F (2019) | 30.6°F (2010) | 2.11 in (2017) |
| December 7 | 81.0°F (2022) | 26.2°F (2010) | 3.14 in (2009) |
| December 8 | 80.4°F (2007) | 25.3°F (2006) | 2.38 in (2009) |
| December 9 | 80.8°F (2007) | 23.7°F (2006) | 0.66 in (2023) |
| December 10 | 81.3°F (2007) | 32.4°F (2017) | 0.74 in (2019) |
| December 11 | 80.6°F (2007) | 28.4°F (2018) | 0.58 in (2022) |
| December 12 | 80.6°F (2007) | 29.3°F (2008) | 1.40 in (2009) |
| December 13 | 79.3°F (2016) | 28.6°F (2010) | 0.91 in (2003) |
| December 14 | 77.4°F (2022) | 26.6°F (2010) | 0.65 in (2025) |
| December 15 | 79.2°F (2021) | 27.1°F (2025) | 1.75 in (2009) |
| December 16 | 80.4°F (2021) | 27.9°F (2025) | 1.27 in (2023) |
| December 17 | 79.2°F (2024) | 28.8°F (2007) | 2.83 in (2009) |
| December 18 | 78.8°F (2025) | 30.0°F (2020) | 1.78 in (2021) |
| December 19 | 77.9°F (2008) | 28.2°F (2019) | 1.97 in (2022) |
| December 20 | 78.4°F (2017) | 29.8°F (2003) | 1.03 in (2007) |
| December 21 | 80.6°F (2025) | 32.9°F (2012) | 2.93 in (2006) |
| December 22 | 78.4°F (2025) | 29.8°F (2022) | 0.83 in (2007) |
| December 23 | 79.7°F (2025) | 19.8°F (2022) | 0.79 in (2015) |
| December 24 | 79.3°F (2015) | 21.9°F (2022) | 1.51 in (2006) |
| December 25 | 80.2°F (2015) | 20.7°F (2022) | 1.07 in (2010) |
| December 26 | 80.6°F (2015) | 23.0°F (2022) | 0.60 in (2017) |
| December 27 | 81.0°F (2015) | 23.2°F (2010) | 3.12 in (2018) |
| December 28 | 79.3°F (2025) | 26.6°F (2010) | 2.81 in (2012) |
| December 29 | 80.4°F (2021) | 27.9°F (2009) | 2.57 in (2010) |
| December 30 | 80.6°F (2021) | 30.2°F (2025) | 4.30 in (2006) |
| December 31 | 81.1°F (2021) | 27.3°F (2025) | 2.72 in (2016) |