Weather on November 20
Fontana, CA
55 Years of Data
Avg High
73°F
Avg Low
47°F
Warmest
2002
73°F avg
Coldest
1994
47°F avg
About This Date
November 20th in Fontana, CA typically brings pleasant fall weather, with average highs around 73°F and lows near 47°F — a 26°F daily swing. Over 55 years of records, the warmest November 20th was in 2002 (73°F average), while the coldest was 1994 (47°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 16% of November 20th dates historically, with the wettest November 20th recording 2.08" of rain. The last decade has been 3.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.2°F cooler on this date compared to 20-30 years ago.
Planning for November 20th in Fontana, CA? Great weather for outdoor activities.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 59° | 47° | 53° | 1.6" | — |
| 2024 | 74° | 45° | 59° | — | — |
| 2023 | 73° | 53° | 63° | — | — |
| 2022 | 76° | 39° | 57° | — | — |
| 2021 | 70° | 50° | 60° | — | — |
| 2020 | 79° | 51° | 65° | — | — |
| 2019 | 61° | 50° | 55° | 0.86" | — |
| 2018 | 73° | 47° | 60° | — | — |
| 2017 | 76° | 48° | 62° | — | — |
| 2016 | 69° | 52° | 60° | 0.91" | — |
| 2015 | 87° | 49° | 68° | — | — |
| 2014 | 68° | 47° | 57° | — | — |
| 2013 | 62° | 55° | 59° | 0.13" | — |
| 2012 | 76° | 47° | 61° | — | — |
| 2011 | 57° | 47° | 52° | 1.88" | — |
| 2010 | 57° | 51° | 54° | 2.08" | — |
| 2009 | 74° | 45° | 59° | — | — |
| 2008 | 82° | 54° | 68° | — | — |
| 2007 | 72° | 49° | 60° | — | — |
| 2006 | 88° | 54° | 71° | — | — |
| 2005 | 88° | 50° | 69° | — | — |
| 2004 | 65° | 48° | 56° | 0.33" | — |
| 2003 | 73° | 46° | 60° | — | — |
| 2002warmest | 89° | 58° | 73° | — | — |
| 2001 | 79° | 52° | 65° | — | — |
| 2000 | 79° | 42° | 60° | — | — |
| 1999 | 63° | 52° | 57° | 0.1" | — |
| 1998 | 75° | 41° | 58° | — | — |
| 1997 | 74° | 55° | 64° | — | — |
| 1996 | 74° | 55° | 64° | — | — |
| 1995 | 85° | 46° | 65° | — | — |
| 1994coldest | 67° | 28° | 47° | — | — |
| 1993 | 78° | 45° | 61° | — | — |
| 1992 | 67° | 45° | 56° | — | — |
| 1991 | 84° | 47° | 65° | — | — |
| 1990 | 59° | 52° | 55° | 0.97" | — |
| 1989 | 85° | 55° | 70° | — | — |
| 1988 | 75° | 34° | 54° | — | — |
| 1987 | 83° | 40° | 61° | — | — |
| 1986 | 79° | 43° | 61° | — | — |
| 1985 | 72° | 34° | 53° | — | — |
| 1984 | 76° | 37° | 56° | — | — |
| 1983 | 60° | 39° | 50° | — | — |
| 1982 | 64° | 46° | 55° | — | — |
| 1981 | 77° | 40° | 58° | — | — |
| 1980 | 74° | 46° | 60° | — | — |
| 1979 | 65° | 35° | 50° | — | — |
| 1978 | 62° | 41° | 52° | — | — |
| 1977 | 65° | 50° | 57° | — | — |
| 1976 | 80° | 50° | 65° | — | — |
| 1975 | 68° | 41° | 55° | — | — |
| 1974 | 77° | 53° | 65° | — | — |
| 1973 | 60° | 42° | 51° | — | — |
| 1972 | 68° | 47° | 57° | — | — |
| 1971 | 73° | 58° | 65° | — | — |
55 years of data from FONTANA KAISER