Weather on November 21
Rialto, CA
55 Years of Data
Avg High
68°F
Avg Low
47°F
Warmest
2002
75°F avg
Coldest
2004
37°F avg
About This Date
November 21st in Rialto, CA typically brings mild fall weather, with average highs around 68°F and lows near 47°F. Over 47 years of records, the warmest November 21st was in 2002 (75°F average), while the coldest was 2004 (37°F) — a 38°F range across recorded history. Rain or other precipitation has occurred on about 4% of November 21st dates historically, with the wettest November 21st recording 1.4" of rain.
Planning for November 21st in Rialto, CA? Great weather for outdoor activities.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 63° | 46° | 54° | — | — |
| 2016 | 57° | 47° | 52° | — | — |
| 2015 | 77° | 63° | 70° | — | — |
| 2014 | 69° | 50° | 60° | — | — |
| 2013 | 55° | 49° | 52° | — | — |
| 2012 | 69° | 50° | 60° | — | — |
| 2011 | 56° | 42° | 49° | — | — |
| 2010 | 52° | 42° | 47° | — | — |
| 2009 | 61° | 46° | 53° | — | — |
| 2008 | 81° | 61° | 71° | — | — |
| 2007 | 69° | 54° | 61° | — | — |
| 2006 | 77° | 56° | 66° | — | — |
| 2005 | 84° | 59° | 72° | — | — |
| 2004coldest | 40° | 34° | 37° | — | — |
| 2003 | 61° | 46° | 53° | — | — |
| 2002warmest | 90° | 61° | 75° | — | — |
| 2001 | 75° | 51° | 63° | — | — |
| 2000 | 79° | 45° | 62° | — | — |
| 1999 | 67° | 43° | 55° | — | — |
| 1998 | 81° | 50° | 65° | — | — |
| 1997 | 77° | 55° | 66° | — | — |
| 1996 | 60° | 57° | 59° | — | — |
| 1995 | 78° | 54° | 66° | — | — |
| 1994 | 65° | 35° | 50° | — | — |
| 1993 | 72° | 55° | 63° | — | — |
| 1992 | 66° | 44° | 55° | — | — |
| 1991 | 69° | 54° | 61° | — | — |
| 1990 | 64° | 45° | 54° | — | — |
| 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 | 72° | 59° | 65° | — | — |
| 1980 | 79° | 41° | 60° | — | — |
| 1979 | 67° | 34° | 50° | — | — |
| 1978 | 57° | 44° | 51° | 1.4" | — |
| 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 FONTANA 5 N