December weather in Alamo Heights, TX
The average temperature in Alamo Heights in December is 52.8°F (41.4°F–64.2°F). Average precipitation: 2.11 inches.
December is a winter month in Alamo Heights, and is cooler than the annual average of 69°F. Daily temperatures swing about 22.8°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 10h 7m. For travel, December is a comfortable month to visit.
Avg High
64.2°F
Avg Low
41.4°F
Precipitation
2.11 in
Snow
0.1 in
December records in Alamo Heights
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 80.1°F (1998) | 26.1°F (2020) | 0.04 in (2009) |
| December 2 | 80.1°F (2012) | 23.0°F (2020) | 0.85 in (2009) |
| December 3 | 82.9°F (2007) | 32.0°F (2008) | 0.63 in (2001) |
| December 4 | 84.0°F (2017) | 28.9°F (2006) | 0.43 in (2002) |
| December 5 | 78.1°F (1998) | 24.1°F (2009) | 0.53 in (2011) |
| December 6 | 79.0°F (1998) | 24.1°F (2009) | 0.04 in (2013) |
| December 7 | 80.1°F (1998) | 27.0°F (1999) | 0.28 in (2018) |
| December 8 | 79.0°F (2007) | 27.0°F (2005) | 1.55 in (2018) |
| December 9 | 81.0°F (2007) | 28.0°F (2005) | 1.38 in (2002) |
| December 10 | 82.0°F (2008) | 28.9°F (2013) | 0.32 in (1998) |
| December 11 | 84.0°F (2021) | 28.9°F (2008) | 0.73 in (2011) |
| December 12 | 80.1°F (2007) | 28.9°F (2012) | 0.40 in (2001) |
| December 13 | 78.1°F (2004) | 21.0°F (1997) | 0.71 in (2000) |
| December 14 | 75.0°F (2006) | 21.9°F (1997) | 0.09 in (2011) |
| December 15 | 79.0°F (2008) | 27.0°F (2004) | 0.25 in (2011) |
| December 16 | 81.0°F (2021) | 26.1°F (2004) | 1.15 in (2001) |
| December 17 | 79.0°F (2021) | 27.0°F (2007) | 1.19 in (2017) |
| December 18 | 78.1°F (2002) | 26.1°F (2020) | 0.06 in (2009) |
| December 19 | 82.0°F (2012) | 30.0°F (2000) | 0.57 in (2017) |
| December 20 | 82.9°F (2012) | 30.0°F (2000) | 0.31 in (1997) |
| December 21 | 78.1°F (2007) | 28.9°F (2012) | 2.14 in (1997) |
| December 22 | 78.1°F (1998) | 30.0°F (1998) | 0.75 in (2011) |
| December 23 | 77.0°F (2018) | 26.1°F (1998) | 0.21 in (2002) |
| December 24 | 75.9°F (2020) | 27.0°F (1998) | 1.36 in (2006) |
| December 25 | 77.0°F (2021) | 24.1°F (2004) | 0.35 in (2006) |
| December 26 | 77.0°F (2005) | 24.1°F (1998) | 0.46 in (2000) |
| December 27 | 81.0°F (2008) | 24.1°F (1998) | 0.36 in (2000) |
| December 28 | 80.1°F (2005) | 27.0°F (2010) | 0.07 in (2013) |
| December 29 | 78.1°F (2005) | 28.9°F (2000) | 0.34 in (2010) |
| December 30 | 81.0°F (2021) | 27.0°F (2003) | 0.90 in (2018) |
| December 31 | 82.0°F (2021) | 27.0°F (2003) | 1.47 in (2021) |