Weather on December 20
San Angelo, TX
55 Years of Data
Avg High
63°F
Avg Low
33°F
Warmest
2025
69°F avg
Coldest
1983
20°F avg
About This Date
December 20th in San Angelo, TX typically brings mild winter weather, with average highs around 63°F and lows near 33°F — a 30°F daily swing. Over 55 years of records, the warmest December 20th was in 2025 (69°F average), while the coldest was 1983 (20°F) — a 49°F range across recorded history. Rain or other precipitation has occurred on about 9% of December 20th dates historically, with the wettest December 20th recording 4.45" of rain. The last decade has been 4.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.9°F warmer on this date compared to 20-30 years ago.
Planning for December 20th in San Angelo, TX? Great weather for outdoor activities.
Warming Trend
1.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 87° | 50° | 69° | — | — |
| 2024 | 64° | 31° | 48° | — | — |
| 2023 | 67° | 47° | 57° | — | — |
| 2022 | 45° | 32° | 38° | — | — |
| 2021 | 67° | 29° | 48° | — | — |
| 2020 | 67° | 30° | 49° | — | — |
| 2019 | 66° | 31° | 49° | — | — |
| 2018 | 61° | 39° | 50° | — | — |
| 2017 | 74° | 40° | 57° | — | — |
| 2016 | 68° | 26° | 47° | — | — |
| 2015 | 69° | 53° | 61° | — | — |
| 2014 | 55° | 37° | 46° | — | — |
| 2013 | 62° | 37° | 50° | 0.46" | — |
| 2012 | 54° | 24° | 39° | — | — |
| 2011 | 50° | 30° | 40° | — | — |
| 2010 | 85° | 45° | 65° | — | — |
| 2009 | 68° | 25° | 46° | — | — |
| 2008 | 71° | 40° | 55° | — | — |
| 2007 | 71° | 37° | 54° | — | — |
| 2006 | 59° | 33° | 46° | 0.53" | — |
| 2005 | 52° | 39° | 45° | — | — |
| 2004 | 68° | 46° | 57° | — | — |
| 2003 | 65° | 26° | 45° | — | — |
| 2002 | 63° | 26° | 44° | — | — |
| 2001 | 57° | 23° | 40° | — | — |
| 2000 | 60° | 22° | 41° | — | — |
| 1999 | 70° | 29° | 49° | — | — |
| 1998 | 68° | 42° | 55° | 0.03" | — |
| 1997 | 75° | 42° | 59° | — | — |
| 1996 | 46° | 11° | 28° | — | — |
| 1995 | 52° | 25° | 38° | — | — |
| 1994 | 69° | 44° | 57° | — | — |
| 1993 | 65° | 35° | 50° | — | — |
| 1992 | 75° | 33° | 54° | — | — |
| 1991 | 58° | 46° | 52° | 4.45" | — |
| 1990 | 73° | 30° | 52° | — | — |
| 1989 | 40° | 18° | 29° | — | — |
| 1988 | 68° | 31° | 49° | — | — |
| 1987 | 67° | 30° | 48° | — | — |
| 1986 | 60° | 30° | 45° | — | — |
| 1985 | 61° | 25° | 43° | — | — |
| 1984 | 58° | 42° | 50° | 0.03" | — |
| 1983coldest | 25° | 16° | 20° | — | — |
| 1982 | 62° | 38° | 50° | — | — |
| 1981 | 60° | 30° | 45° | — | — |
| 1980 | 35° | 26° | 31° | — | — |
| 1979 | 67° | 40° | 53° | — | — |
| 1978 | 79° | 51° | 65° | — | — |
| 1977 | 70° | 29° | 49° | — | — |
| 1976 | 71° | 31° | 51° | — | — |
| 1975 | 50° | 24° | 37° | — | — |
| 1974 | 69° | 31° | 50° | — | — |
| 1973 | 36° | 14° | 25° | — | — |
| 1972 | 69° | 38° | 53° | — | — |
| 1971 | 70° | 42° | 56° | — | — |
55 years of data from SAN ANGELO DAM