Weather on December 17
San Antonio, TX
55 Years of Data
Avg High
63°F
Avg Low
41°F
Warmest
1990
74°F avg
Coldest
1989
33°F avg
About This Date
December 17th in San Antonio, TX typically brings mild winter weather, with average highs around 63°F and lows near 41°F. Over 55 years of records, the warmest December 17th was in 1990 (74°F average), while the coldest was 1989 (33°F) — a 41°F range across recorded history. Rain or other precipitation has occurred on about 22% of December 17th dates historically, with the wettest December 17th recording 3.02" of rain. The last decade has been 6.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 6.5°F warmer on this date compared to 20-30 years ago.
Planning for December 17th in San Antonio, TX? Great weather for outdoor activities.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 66° | 59° | 63° | 0.38" | — |
| 2024 | 80° | 67° | 73° | — | — |
| 2023 | 70° | 36° | 53° | — | — |
| 2022 | 60° | 39° | 50° | — | — |
| 2021 | 79° | 68° | 73° | — | — |
| 2020 | 61° | 28° | 44° | — | — |
| 2019 | 55° | 33° | 44° | — | — |
| 2018 | 69° | 45° | 57° | — | — |
| 2017 | 50° | 44° | 47° | 3.02" | — |
| 2016 | 77° | 39° | 58° | 0.08" | — |
| 2015 | 66° | 38° | 52° | — | — |
| 2014 | 58° | 49° | 53° | 0.05" | — |
| 2013 | 66° | 33° | 50° | — | — |
| 2012 | 71° | 44° | 58° | — | — |
| 2011 | 57° | 48° | 53° | — | — |
| 2010 | 63° | 41° | 52° | — | — |
| 2009 | 47° | 41° | 44° | 0.91" | — |
| 2008 | 42° | 32° | 37° | 0.08" | — |
| 2007 | 53° | 27° | 40° | — | — |
| 2006 | 77° | 61° | 69° | — | — |
| 2005 | 49° | 39° | 44° | 0.18" | — |
| 2004 | 58° | 40° | 49° | — | — |
| 2003 | 60° | 28° | 44° | — | — |
| 2002 | 73° | 57° | 65° | — | — |
| 2001 | 71° | 49° | 60° | — | — |
| 2000 | 66° | 29° | 47° | — | — |
| 1999 | 62° | 29° | 45° | — | — |
| 1998 | 68° | 34° | 51° | — | — |
| 1997 | 72° | 34° | 53° | — | — |
| 1996 | 48° | 31° | 39° | — | — |
| 1995 | 76° | 62° | 69° | 0.18" | — |
| 1994 | 63° | 47° | 55° | — | — |
| 1993 | 62° | 57° | 60° | — | — |
| 1992 | 62° | 37° | 50° | — | — |
| 1991 | 55° | 50° | 53° | 1.14" | — |
| 1990warmest | 82° | 66° | 74° | — | — |
| 1989coldest | 37° | 29° | 33° | — | — |
| 1988 | 64° | 34° | 49° | — | — |
| 1987 | 47° | 38° | 42° | 1.93" | — |
| 1986 | 60° | 54° | 57° | 0.05" | — |
| 1985 | 59° | 44° | 52° | — | — |
| 1984 | 70° | 56° | 63° | 0.43" | — |
| 1983 | 45° | 32° | 38° | — | — |
| 1982 | 70° | 34° | 52° | — | — |
| 1981 | 60° | 32° | 46° | — | — |
| 1980 | 75° | 42° | 59° | — | — |
| 1979 | 51° | 30° | 41° | — | — |
| 1978 | 59° | 43° | 51° | — | — |
| 1977 | 71° | 38° | 54° | — | — |
| 1976 | 61° | 44° | 52° | — | — |
| 1975 | 64° | 39° | 52° | — | — |
| 1974 | 62° | 28° | 45° | — | — |
| 1973 | 67° | 28° | 47° | — | — |
| 1972 | 62° | 19° | 41° | — | — |
| 1971 | 61° | 50° | 55° | — | — |
55 years of data from SAN ANTONIO INCARNATE WORD