Weather on December 15
San Antonio, TX
55 Years of Data
Avg High
66°F
Avg Low
42°F
Warmest
2024
72°F avg
Coldest
1985
39°F avg
About This Date
December 15th in San Antonio, TX typically brings mild winter weather, with average highs around 66°F and lows near 42°F. Over 55 years of records, the warmest December 15th was in 2024 (72°F average), while the coldest was 1985 (39°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 33% of December 15th dates historically, with the wettest December 15th recording 2.31" of rain. The last decade has been 5.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.6°F warmer on this date compared to 20-30 years ago.
Planning for December 15th in San Antonio, TX? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
1.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 58° | 38° | 48° | — | — |
| 2024warmest | 76° | 69° | 72° | 0.03" | — |
| 2023 | 65° | 54° | 59° | 0.48" | — |
| 2022 | 65° | 36° | 50° | — | — |
| 2021 | 76° | 61° | 68° | — | — |
| 2020 | 54° | 33° | 43° | — | — |
| 2019 | 80° | 45° | 62° | — | — |
| 2018 | 57° | 37° | 47° | — | — |
| 2017 | 63° | 38° | 50° | 0.05" | — |
| 2016 | 55° | 49° | 52° | — | — |
| 2015 | 76° | 49° | 62° | — | — |
| 2014 | 76° | 52° | 64° | — | — |
| 2013 | 59° | 30° | 45° | — | — |
| 2012 | 71° | 55° | 63° | 0.13" | — |
| 2011 | 74° | 67° | 70° | 0.64" | — |
| 2010 | 72° | 37° | 54° | — | — |
| 2009 | 64° | 52° | 58° | — | — |
| 2008 | 79° | 40° | 59° | 0.08" | — |
| 2007 | 61° | 51° | 56° | 0.58" | — |
| 2006 | 71° | 52° | 61° | — | — |
| 2005 | 67° | 37° | 52° | 0.13" | — |
| 2004 | 53° | 27° | 40° | — | — |
| 2003 | 69° | 31° | 50° | — | — |
| 2002 | 67° | 35° | 51° | — | — |
| 2001 | 64° | 33° | 49° | 0.03" | — |
| 2000 | 58° | 39° | 48° | 0.03" | — |
| 1999 | 73° | 32° | 53° | — | — |
| 1998 | 67° | 36° | 51° | — | — |
| 1997 | 65° | 31° | 48° | — | — |
| 1996 | 68° | 38° | 53° | 2.31" | — |
| 1995 | 82° | 61° | 71° | — | — |
| 1994 | 68° | 61° | 64° | 1.4" | — |
| 1993 | 65° | 33° | 49° | — | — |
| 1992 | 59° | 38° | 48° | 2.21" | — |
| 1991 | 57° | 35° | 46° | — | — |
| 1990 | 77° | 59° | 68° | — | — |
| 1989 | 64° | 23° | 44° | — | — |
| 1988 | 62° | 45° | 53° | — | — |
| 1987 | 53° | 27° | 40° | — | — |
| 1986 | 66° | 52° | 59° | 0.64" | — |
| 1985coldest | 56° | 23° | 39° | — | — |
| 1984 | 76° | 48° | 62° | 2.18" | — |
| 1983 | 68° | 32° | 50° | — | — |
| 1982 | 64° | 38° | 51° | — | — |
| 1981 | 60° | 29° | 44° | — | — |
| 1980 | 70° | 50° | 60° | 0.08" | — |
| 1979 | 63° | 45° | 54° | 0.05" | — |
| 1978 | 65° | 44° | 54° | — | — |
| 1977 | 73° | 34° | 53° | — | — |
| 1976 | 60° | 35° | 48° | — | — |
| 1975 | 70° | 43° | 56° | 0.08" | — |
| 1974 | 64° | 36° | 50° | — | — |
| 1973 | 61° | 38° | 49° | — | — |
| 1972 | 51° | 29° | 40° | — | — |
| 1971 | 74° | 41° | 57° | — | — |
55 years of data from SAN ANTONIO INCARNATE WORD