December weather in Byram, MS
The average temperature in Byram in December is 49.5°F (39.5°F–59.5°F). Average precipitation: 4.71 inches.
December is a winter month in Byram, and is cooler than the annual average of 66°F. Daily temperatures swing about 20°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 9h 54m. For travel, December is a comfortable month to visit.
Avg High
59.5°F
Avg Low
39.5°F
Precipitation
4.71 in
Daylight
9h 54m
December records in Byram
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 80.1°F (2018) | 26.2°F (2020) | 0.51 in (2023) |
| December 2 | 81.0°F (2007) | 27.1°F (2020) | 0.15 in (2009) |
| December 3 | 79.0°F (2022) | 29.1°F (2019) | 0.95 in (2020) |
| December 4 | 81.0°F (2013) | 26.1°F (2006) | 1.12 in (2008) |
| December 5 | 82.9°F (2013) | 23.0°F (2006) | 1.75 in (2016) |
| December 6 | 82.9°F (2022) | 24.1°F (2005) | 1.50 in (2021) |
| December 7 | 82.9°F (2022) | 24.1°F (2010) | 0.51 in (2004) |
| December 8 | 82.9°F (2022) | 19.0°F (2006) | 2.06 in (2018) |
| December 9 | 80.1°F (2007) | 23.0°F (2010) | 1.70 in (2004) |
| December 10 | 82.9°F (2021) | 24.1°F (2005) | 1.25 in (2012) |
| December 11 | 80.1°F (2007) | 24.3°F (2018) | 3.20 in (2008) |
| December 12 | 81.0°F (2007) | 24.1°F (2000) | 0.72 in (2020) |
| December 13 | 80.1°F (2015) | 25.0°F (2010) | 2.44 in (2001) |
| December 14 | 78.1°F (2021) | 21.9°F (2010) | 2.54 in (2005) |
| December 15 | 75.0°F (2024) | 21.0°F (2025) | 0.76 in (2007) |
| December 16 | 79.0°F (2021) | 24.1°F (2025) | 1.51 in (2012) |
| December 17 | 80.1°F (2016) | 23.0°F (2000) | 0.68 in (2001) |
| December 18 | 80.1°F (2021) | 23.0°F (2000) | 1.16 in (2016) |
| December 19 | 75.9°F (2008) | 21.9°F (2000) | 0.62 in (2022) |
| December 20 | 75.9°F (2013) | 18.0°F (2000) | 1.20 in (2007) |
| December 21 | 79.0°F (2013) | 27.0°F (2000) | 1.54 in (2015) |
| December 22 | 80.1°F (2017) | 21.9°F (2000) | 2.24 in (2019) |
| December 23 | 78.1°F (2015) | 12.2°F (2022) | 1.44 in (2020) |
| December 24 | 82.0°F (2015) | 17.2°F (2022) | 1.36 in (2002) |
| December 25 | 78.1°F (2015) | 19.2°F (2022) | 3.53 in (2012) |
| December 26 | 82.0°F (2015) | 21.9°F (2004) | 1.68 in (2011) |
| December 27 | 81.0°F (2021) | 19.9°F (2010) | 3.20 in (2018) |
| December 28 | 81.0°F (2021) | 21.9°F (2010) | 0.89 in (2000) |
| December 29 | 82.9°F (2021) | 24.3°F (2017) | 1.46 in (2003) |
| December 30 | 81.0°F (2021) | 21.9°F (2000) | 3.36 in (2006) |
| December 31 | 84.0°F (2021) | 19.0°F (2000) | 2.49 in (2010) |