Weather on November 21
San Bernardino, CA
55 Years of Data
Avg High
70°F
Avg Low
45°F
Warmest
2015
70°F avg
Coldest
2004
43°F avg
About This Date
November 21st in San Bernardino, CA typically brings pleasant fall weather, with average highs around 70°F and lows near 45°F — a 25°F daily swing. Over 47 years of records, the warmest November 21st was in 2015 (70°F average), while the coldest was 2004 (43°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 15% of November 21st dates historically, with the wettest November 21st recording 3.68" of rain.
Planning for November 21st in San Bernardino, CA? Great weather for outdoor activities.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 63° | 46° | 54° | — | — |
| 2016 | 57° | 47° | 52° | — | — |
| 2015warmest | 77° | 63° | 70° | — | — |
| 2014 | 68° | 51° | 60° | 0.05" | — |
| 2013 | 58° | 54° | 56° | 2.69" | — |
| 2012 | 73° | 45° | 59° | — | — |
| 2011 | 62° | 47° | 54° | 1.35" | — |
| 2010 | 56° | 45° | 50° | 0.41" | — |
| 2009 | 66° | 43° | 54° | — | — |
| 2008 | 85° | 50° | 67° | — | — |
| 2007 | 78° | 40° | 59° | — | — |
| 2006 | 86° | 50° | 68° | — | — |
| 2005 | 85° | 46° | 65° | — | — |
| 2004coldest | 48° | 38° | 43° | 1.35" | — |
| 2003 | 85° | 46° | 65° | — | — |
| 2002 | 88° | 45° | 66° | — | — |
| 2001 | 81° | 51° | 66° | — | — |
| 2000 | 80° | 39° | 60° | — | — |
| 1999 | 64° | 50° | 57° | — | — |
| 1998 | 78° | 40° | 59° | — | — |
| 1997 | 74° | 44° | 59° | — | — |
| 1996 | 65° | 60° | 62° | 3.68" | — |
| 1995 | 82° | 48° | 65° | — | — |
| 1994 | 65° | 35° | 50° | — | — |
| 1993 | 74° | 39° | 56° | — | — |
| 1992 | 65° | 44° | 54° | — | — |
| 1991 | 74° | 45° | 59° | — | — |
| 1990 | 63° | 44° | 53° | — | — |
| 1989 | 80° | 47° | 63° | — | — |
| 1988 | 73° | 37° | 55° | — | — |
| 1987 | 65° | 46° | 55° | — | — |
| 1986 | 61° | 57° | 59° | — | — |
| 1985 | 62° | 39° | 51° | — | — |
| 1984 | 62° | 44° | 53° | 0.56" | — |
| 1983 | 59° | 40° | 49° | — | — |
| 1982 | 65° | 41° | 53° | — | — |
| 1981 | 77° | 44° | 61° | — | — |
| 1980 | 79° | 41° | 60° | — | — |
| 1979 | 67° | 34° | 50° | — | — |
| 1978 | 57° | 43° | 50° | — | — |
| 1977 | 71° | 42° | 57° | — | — |
| 1976 | 81° | 46° | 63° | — | — |
| 1975 | 71° | 37° | 54° | — | — |
| 1974 | 65° | 45° | 55° | — | — |
| 1973 | 61° | 48° | 54° | — | — |
| 1972 | 71° | 34° | 52° | — | — |
| 1971 | 66° | 38° | 52° | — | — |
47 years of data from NORTON AFB