December weather in Simpson, LA
The average temperature in Simpson in December is 50.1°F (39.6°F–60.7°F). Average precipitation: 5.49 inches.
December is a winter month in Simpson, and is cooler than the annual average of 66.5°F. Daily temperatures swing about 21.1°F between overnight low and afternoon high. Daylight averages about 9h 59m. For travel, December is a wet month.
Avg High
60.7°F
Avg Low
39.6°F
Precipitation
5.49 in
Daylight
9h 59m
December records in Simpson
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 79.0°F (2012) | 27.1°F (2020) | 0.49 in (2009) |
| December 2 | 82.0°F (2012) | 28.2°F (2008) | 0.34 in (2009) |
| December 3 | 81.0°F (2022) | 28.9°F (2025) | 3.56 in (2016) |
| December 4 | 80.1°F (2012) | 25.2°F (2006) | 2.93 in (2024) |
| December 5 | 79.0°F (2021) | 23.2°F (2006) | 2.01 in (2016) |
| December 6 | 79.0°F (2022) | 25.2°F (2009) | 2.38 in (2021) |
| December 7 | 79.0°F (2022) | 27.1°F (2010) | 1.66 in (2018) |
| December 8 | 82.0°F (2022) | 23.2°F (2006) | 2.24 in (2018) |
| December 9 | 82.9°F (2023) | 20.1°F (2006) | 2.69 in (2008) |
| December 10 | 82.0°F (2021) | 28.2°F (2016) | 1.50 in (2022) |
| December 11 | 81.0°F (2015) | 27.1°F (2023) | 1.60 in (2020) |
| December 12 | 81.0°F (2007) | 28.2°F (2012) | 0.57 in (2009) |
| December 13 | 77.0°F (2025) | 27.1°F (2010) | 2.49 in (2015) |
| December 14 | 79.0°F (2021) | 26.2°F (2010) | 0.74 in (2009) |
| December 15 | 80.1°F (2011) | 23.0°F (2025) | 1.82 in (2009) |
| December 16 | 80.1°F (2021) | 27.0°F (2025) | 1.35 in (2012) |
| December 17 | 80.1°F (2021) | 28.2°F (2007) | 0.77 in (2017) |
| December 18 | 78.1°F (2021) | 28.2°F (2019) | 0.92 in (2021) |
| December 19 | 75.0°F (2008) | 26.2°F (2016) | 1.94 in (2022) |
| December 20 | 75.9°F (2007) | 27.1°F (2016) | 2.23 in (2011) |
| December 21 | 78.1°F (2010) | 32.0°F (2008) | 0.64 in (2013) |
| December 22 | 81.0°F (2017) | 18.1°F (2022) | 1.41 in (2011) |
| December 23 | 75.0°F (2025) | 12.2°F (2022) | 1.79 in (2020) |
| December 24 | 78.1°F (2016) | 16.2°F (2022) | 1.36 in (2009) |
| December 25 | 82.9°F (2015) | 21.2°F (2022) | 1.96 in (2012) |
| December 26 | 82.0°F (2015) | 25.2°F (2010) | 0.28 in (2007) |
| December 27 | 80.1°F (2021) | 22.1°F (2010) | 2.50 in (2018) |
| December 28 | 82.0°F (2021) | 27.1°F (2009) | 0.76 in (2012) |
| December 29 | 80.1°F (2021) | 28.2°F (2012) | 1.47 in (2021) |
| December 30 | 81.0°F (2021) | 26.2°F (2012) | 2.47 in (2022) |
| December 31 | 82.9°F (2021) | 28.0°F (2025) | 0.57 in (2020) |