Weather on November 20
Rialto, CA
55 Years of Data
Avg High
71°F
Avg Low
48°F
Warmest
2002
74°F avg
Coldest
1994
46°F avg
About This Date
November 20th in Rialto, CA typically brings pleasant fall weather, with average highs around 71°F and lows near 48°F. Over 47 years of records, the warmest November 20th was in 2002 (74°F average), while the coldest was 1994 (46°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 4% of November 20th dates historically, with the wettest November 20th recording 0.76" of rain.
Planning for November 20th in Rialto, CA? Great weather for outdoor activities.
Warming Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 59° | 46° | 53° | — | — |
| 2017 | 75° | 55° | 65° | — | — |
| 2015 | 82° | 65° | 73° | — | — |
| 2014 | 64° | 47° | 55° | — | — |
| 2013 | 55° | 51° | 53° | — | — |
| 2012 | 73° | 50° | 62° | — | — |
| 2011 | 51° | 44° | 48° | — | — |
| 2010 | 52° | 46° | 49° | — | — |
| 2009 | 70° | 46° | 58° | — | — |
| 2008 | 79° | 60° | 69° | — | — |
| 2007 | 73° | 53° | 63° | — | — |
| 2006 | 86° | 57° | 72° | — | — |
| 2005 | 80° | 62° | 71° | — | — |
| 2004 | 69° | 38° | 53° | — | — |
| 2003 | 77° | 48° | 63° | — | — |
| 2002warmest | 83° | 66° | 74° | — | — |
| 2001 | 82° | 56° | 69° | — | — |
| 2000 | 69° | 56° | 62° | — | — |
| 1999 | 65° | 47° | 56° | — | — |
| 1998 | 80° | 54° | 67° | — | — |
| 1997 | 74° | 53° | 63° | — | — |
| 1996 | 75° | 46° | 61° | — | — |
| 1995 | 85° | 56° | 70° | — | — |
| 1994coldest | 60° | 32° | 46° | — | — |
| 1993 | 74° | 54° | 64° | — | — |
| 1992 | 58° | 49° | 53° | — | — |
| 1991 | 74° | 54° | 64° | — | — |
| 1990 | 55° | 48° | 52° | — | — |
| 1989 | 80° | 55° | 68° | — | — |
| 1988 | 68° | 35° | 52° | — | — |
| 1987 | 78° | 40° | 59° | — | — |
| 1986 | 76° | 48° | 62° | — | — |
| 1985 | 67° | 36° | 51° | — | — |
| 1984 | 76° | 41° | 58° | — | — |
| 1983 | 60° | 48° | 54° | 0.76" | — |
| 1982 | 62° | 50° | 56° | 0.05" | — |
| 1981 | 75° | 60° | 68° | — | — |
| 1980 | 76° | 48° | 62° | — | — |
| 1979 | 63° | 39° | 51° | — | — |
| 1978 | 62° | 41° | 52° | — | — |
| 1977 | 65° | 44° | 54° | — | — |
| 1976 | 80° | 46° | 63° | — | — |
| 1975 | 72° | 34° | 53° | — | — |
| 1974 | 80° | 46° | 63° | — | — |
| 1973 | 64° | 36° | 50° | — | — |
| 1972 | 67° | 41° | 54° | — | — |
| 1971 | 70° | 45° | 57° | — | — |
47 years of data from FONTANA 5 N