Weather on December 9
San Antonio, TX
55 Years of Data
Avg High
66°F
Avg Low
44°F
Warmest
2007
74°F avg
Coldest
1978
33°F avg
About This Date
December 9th in San Antonio, TX typically brings mild winter weather, with average highs around 66°F and lows near 44°F. Over 55 years of records, the warmest December 9th was in 2007 (74°F average), while the coldest was 1978 (33°F) — a 41°F range across recorded history. Rain or other precipitation has occurred on about 27% of December 9th dates historically, with the wettest December 9th recording 3.51" of rain. The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
Planning for December 9th in San Antonio, TX? Great weather for outdoor activities.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 67° | 34° | 50° | — | — |
| 2024 | 81° | 49° | 65° | — | — |
| 2023 | 72° | 55° | 63° | — | — |
| 2022 | 79° | 66° | 72° | — | — |
| 2021 | 78° | 41° | 60° | — | — |
| 2020 | 79° | 32° | 55° | — | — |
| 2019 | 78° | 61° | 69° | — | — |
| 2018 | 49° | 38° | 43° | — | — |
| 2017 | 55° | 29° | 42° | — | — |
| 2016 | 46° | 35° | 41° | — | — |
| 2015 | 78° | 47° | 62° | — | — |
| 2014 | 70° | 46° | 58° | — | — |
| 2013 | 50° | 33° | 42° | 0.03" | — |
| 2012 | 78° | 65° | 71° | 0.05" | — |
| 2011 | 60° | 32° | 46° | — | — |
| 2010 | 59° | 30° | 45° | — | — |
| 2009 | 61° | 40° | 50° | 0.1" | — |
| 2008 | 75° | 57° | 66° | — | — |
| 2007warmest | 81° | 68° | 74° | — | — |
| 2006 | 43° | 35° | 39° | 0.08" | — |
| 2005 | 39° | 28° | 34° | — | — |
| 2004 | 64° | 42° | 53° | — | — |
| 2003 | 76° | 47° | 61° | 0.05" | — |
| 2002 | 60° | 47° | 53° | 3.51" | — |
| 2001 | 51° | 42° | 47° | 0.56" | — |
| 2000 | 71° | 35° | 53° | — | — |
| 1999 | 80° | 60° | 70° | 0.13" | — |
| 1998 | 58° | 41° | 49° | — | — |
| 1997 | 79° | 44° | 61° | — | — |
| 1996 | 74° | 39° | 56° | — | — |
| 1995 | 51° | 31° | 41° | — | — |
| 1994 | 70° | 42° | 56° | 0.08" | — |
| 1993 | 76° | 65° | 70° | — | — |
| 1992 | 76° | 45° | 60° | 0.2" | — |
| 1991 | 77° | 57° | 67° | — | — |
| 1990 | 67° | 31° | 49° | — | — |
| 1989 | 60° | 28° | 44° | — | — |
| 1988 | 47° | 39° | 43° | — | — |
| 1987 | 70° | 47° | 58° | — | — |
| 1986 | 69° | 46° | 58° | 0.51" | — |
| 1985 | 78° | 62° | 70° | — | — |
| 1984 | 74° | 52° | 63° | — | — |
| 1983 | 73° | 58° | 65° | — | — |
| 1982 | 55° | 43° | 49° | 0.36" | — |
| 1981 | 77° | 52° | 64° | — | — |
| 1980 | 58° | 47° | 52° | 0.05" | — |
| 1979 | 71° | 38° | 54° | — | — |
| 1978coldest | 43° | 23° | 33° | — | — |
| 1977 | 56° | 35° | 45° | — | — |
| 1976 | 67° | 32° | 49° | — | — |
| 1975 | 69° | 40° | 54° | — | — |
| 1974 | 43° | 36° | 39° | — | — |
| 1973 | 68° | 44° | 56° | — | — |
| 1972 | 56° | 48° | 52° | 0.1" | — |
| 1971 | 73° | 50° | 62° | 0.43" | — |
55 years of data from SAN ANTONIO INCARNATE WORD