December weather in Portland, TX
The average temperature in Portland in December is 58.5°F (48.7°F–68.2°F). Average precipitation: 1.90 inches. Average snowfall is 0.3 inches.
December is a winter month in Portland, and is cooler than the annual average of 72°F. Daily temperatures swing about 19.5°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 10h 14m. For travel, December is a comfortable month to visit.
Avg High
68.2°F
Avg Low
48.7°F
Precipitation
1.90 in
Snow
0.3 in
December records in Portland
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 90.0°F (2019) | 35.1°F (2006) | 0.76 in (2009) |
| December 2 | 82.9°F (2012) | 36.0°F (2010) | 0.73 in (2009) |
| December 3 | 84.0°F (2005) | 39.9°F (2009) | 0.19 in (2024) |
| December 4 | 84.0°F (2008) | 34.0°F (2007) | 0.94 in (2016) |
| December 5 | 86.0°F (2012) | 32.0°F (2009) | 0.85 in (2016) |
| December 6 | 82.0°F (2021) | 36.0°F (2009) | 2.38 in (2017) |
| December 7 | 84.0°F (2021) | 28.0°F (2011) | 0.26 in (2017) |
| December 8 | 82.9°F (2012) | 26.1°F (2011) | 1.04 in (2017) |
| December 9 | 86.0°F (2004) | 30.0°F (2017) | 0.16 in (2018) |
| December 10 | 84.9°F (2008) | 35.1°F (2010) | 0.15 in (2006) |
| December 11 | 87.1°F (2021) | 33.1°F (2008) | 0.47 in (2011) |
| December 12 | 82.9°F (2010) | 35.1°F (2008) | 0.17 in (2011) |
| December 13 | 84.0°F (2022) | 35.1°F (2012) | 0.22 in (2015) |
| December 14 | 84.0°F (2020) | 37.9°F (2010) | 0.64 in (2015) |
| December 15 | 88.0°F (2019) | 35.1°F (2004) | 0.11 in (2017) |
| December 16 | 84.0°F (2019) | 30.0°F (2007) | 0.86 in (2009) |
| December 17 | 82.0°F (2012) | 33.1°F (2013) | 0.79 in (2009) |
| December 18 | 86.0°F (2016) | 33.1°F (2019) | 0.15 in (2014) |
| December 19 | 82.9°F (2021) | 30.9°F (2016) | 0.27 in (2008) |
| December 20 | 82.0°F (2025) | 30.0°F (2016) | 0.24 in (2006) |
| December 21 | 82.0°F (2008) | 30.0°F (2012) | 3.68 in (2019) |
| December 22 | 82.9°F (2010) | 26.1°F (2022) | 0.07 in (2006) |
| December 23 | 82.0°F (2017) | 21.0°F (2022) | 0.10 in (2008) |
| December 24 | 84.9°F (2015) | 23.0°F (2022) | 0.85 in (2006) |
| December 25 | 82.9°F (2015) | 25.0°F (2004) | 0.28 in (2010) |
| December 26 | 86.0°F (2021) | 26.1°F (2004) | 0.08 in (2013) |
| December 27 | 84.9°F (2005) | 32.0°F (2010) | 0.16 in (2013) |
| December 28 | 90.0°F (2008) | 35.1°F (2011) | 0.37 in (2014) |
| December 29 | 84.9°F (2021) | 36.0°F (2014) | 0.26 in (2014) |
| December 30 | 90.0°F (2024) | 36.0°F (2012) | 0.62 in (2009) |
| December 31 | 82.0°F (2011) | 37.9°F (2025) | 1.21 in (2020) |