December weather in San Augustine, TX
The average temperature in San Augustine in December is 48.8°F (36.5°F–61.0°F). Average precipitation: 5.40 inches.
December is a winter month in San Augustine, and is cooler than the annual average of 65.4°F. Daily temperatures swing about 24.5°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 9h 57m. For travel, December is a wet month.
Avg High
61.0°F
Avg Low
36.5°F
Precipitation
5.40 in
Daylight
9h 57m
December records in San Augustine
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 77.0°F (2019) | 19.9°F (1911) | 1.71 in (1991) |
| December 2 | 78.1°F (2012) | 21.9°F (1910) | 1.53 in (1997) |
| December 3 | 80.1°F (2012) | 25.0°F (1911) | 2.00 in (2016) |
| December 4 | 79.0°F (1909) | 27.0°F (2007) | 2.10 in (1978) |
| December 5 | 86.0°F (2017) | 23.0°F (1911) | 2.50 in (2024) |
| December 6 | 78.1°F (1916) | 23.0°F (2006) | 1.07 in (1976) |
| December 7 | 77.0°F (2001) | 21.0°F (1910) | 2.50 in (1987) |
| December 8 | 81.0°F (2022) | 19.0°F (2017) | 5.00 in (2018) |
| December 9 | 80.1°F (2007) | 19.9°F (2006) | 1.00 in (2003) |
| December 10 | 82.0°F (2021) | 21.0°F (2006) | 1.81 in (1983) |
| December 11 | 81.0°F (2015) | 24.1°F (2023) | 2.00 in (1909) |
| December 12 | 87.1°F (2015) | 19.9°F (1916) | 3.75 in (2006) |
| December 13 | 82.0°F (2015) | 23.0°F (1909) | 1.46 in (1979) |
| December 14 | 77.0°F (2025) | 19.0°F (1914) | 1.75 in (2015) |
| December 15 | 77.0°F (2021) | 18.0°F (1914) | 3.40 in (1992) |
| December 16 | 81.0°F (2015) | 21.0°F (1914) | 1.21 in (2023) |
| December 17 | 81.0°F (2015) | 26.1°F (2007) | 5.49 in (1995) |
| December 18 | 78.1°F (2021) | 21.9°F (2019) | 1.88 in (1914) |
| December 19 | 78.1°F (2024) | 21.0°F (2019) | 1.02 in (2021) |
| December 20 | 73.9°F (2017) | 21.9°F (1909) | 2.90 in (1997) |
| December 21 | 77.0°F (2025) | 17.1°F (1916) | 1.25 in (1912) |
| December 22 | 77.0°F (2017) | 15.1°F (1916) | 2.40 in (2011) |
| December 23 | 79.0°F (2017) | 8.1°F (2022) | 2.00 in (1997) |
| December 24 | 84.0°F (2015) | 12.0°F (2022) | 1.95 in (1992) |
| December 25 | 82.9°F (2015) | 16.0°F (2022) | 1.88 in (2024) |
| December 26 | 82.0°F (2015) | 21.0°F (1909) | 1.80 in (1982) |
| December 27 | 90.0°F (2015) | 16.0°F (2017) | 2.67 in (2018) |
| December 28 | 84.0°F (2015) | 21.0°F (1911) | 2.72 in (1988) |
| December 29 | 80.1°F (2025) | 21.9°F (2023) | 1.02 in (2024) |
| December 30 | 81.0°F (2021) | 19.9°F (1909) | 3.54 in (2006) |
| December 31 | 81.0°F (2021) | 23.0°F (2023) | 2.48 in (2020) |