Weather on November 21
San Marcos, CA
55 Years of Data
Avg High
72°F
Avg Low
46°F
Warmest
2002
71°F avg
Coldest
1979
48°F avg
About This Date
November 21st in San Marcos, CA typically brings pleasant fall weather, with average highs around 72°F and lows near 46°F — a 26°F daily swing. Over 55 years of records, the warmest November 21st was in 2002 (71°F average), while the coldest was 1979 (48°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 27% of November 21st dates historically, with the wettest November 21st recording 2.67" of rain. The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
Planning for November 21st in San Marcos, CA? Great weather for outdoor activities.
Warming Trend
1.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 67° | 54° | 60° | 0.05" | — |
| 2024 | 80° | 42° | 61° | — | — |
| 2023 | 83° | 59° | 71° | — | — |
| 2022 | 79° | 45° | 62° | — | — |
| 2021 | 88° | 49° | 68° | — | — |
| 2020 | 82° | 50° | 66° | — | — |
| 2019 | 63° | 52° | 57° | 1.19" | — |
| 2018 | 73° | 47° | 60° | — | — |
| 2017 | 88° | 52° | 70° | — | — |
| 2016 | 64° | 56° | 60° | 2.67" | — |
| 2015 | 89° | 52° | 70° | — | — |
| 2014 | 69° | 56° | 62° | 0.79" | — |
| 2013 | 62° | 57° | 60° | 0.61" | — |
| 2012 | 69° | 45° | 57° | — | — |
| 2011 | 61° | 49° | 55° | 2.44" | — |
| 2010 | 58° | 51° | 54° | 1.45" | — |
| 2009 | 64° | 51° | 58° | — | — |
| 2008 | 79° | 53° | 66° | — | — |
| 2007 | 76° | 45° | 60° | — | — |
| 2006 | 91° | 49° | 70° | — | — |
| 2005 | 81° | 57° | 69° | — | — |
| 2004 | 61° | 40° | 50° | 1.14" | — |
| 2003 | 70° | 45° | 57° | — | — |
| 2002warmest | 89° | 54° | 71° | — | — |
| 2001 | 78° | 49° | 63° | — | — |
| 2000 | 84° | 40° | 62° | — | — |
| 1999 | 66° | 49° | 57° | — | — |
| 1998 | 78° | 41° | 60° | — | — |
| 1997 | 75° | 46° | 61° | — | — |
| 1996 | 69° | 57° | 63° | 0.25" | — |
| 1995 | 74° | 46° | 60° | — | — |
| 1994 | 66° | 33° | 50° | — | — |
| 1993 | 75° | 40° | 57° | — | — |
| 1992 | 68° | 38° | 53° | — | — |
| 1991 | 78° | 47° | 62° | — | — |
| 1990 | 67° | 44° | 55° | — | — |
| 1989 | 80° | 50° | 65° | — | — |
| 1988 | 76° | 38° | 57° | — | — |
| 1987 | 76° | 49° | 62° | 0.05" | — |
| 1986 | 64° | 57° | 61° | — | — |
| 1985 | 67° | 37° | 52° | — | — |
| 1984 | 68° | 48° | 58° | 0.58" | — |
| 1983 | 65° | 45° | 55° | 0.18" | — |
| 1982 | 63° | 41° | 52° | — | — |
| 1981 | 78° | 46° | 62° | — | — |
| 1980 | 78° | 37° | 58° | — | — |
| 1979coldest | 67° | 29° | 48° | — | — |
| 1978 | 60° | 49° | 54° | 0.13" | — |
| 1977 | 69° | 42° | 56° | — | — |
| 1976 | 73° | 46° | 60° | — | — |
| 1975 | 75° | 34° | 54° | — | — |
| 1974 | 59° | 51° | 55° | 0.03" | — |
| 1973 | 59° | 44° | 52° | 0.05" | — |
| 1972 | 71° | 37° | 54° | — | — |
| 1971 | 67° | 36° | 51° | — | — |
55 years of data from ESCONDIDO #2