Weather on November 20
Fullerton, CA
55 Years of Data
Avg High
75°F
Avg Low
50°F
Warmest
2002
77°F avg
Coldest
1994
50°F avg
About This Date
November 20th in Fullerton, CA typically brings pleasant fall weather, with average highs around 75°F and lows near 50°F — a 25°F daily swing. Over 54 years of records, the warmest November 20th was in 2002 (77°F average), while the coldest was 1994 (50°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 9% of November 20th dates historically, with the wettest November 20th recording 6.78" of rain. The last decade has been 3.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.1°F cooler on this date compared to 20-30 years ago.
Planning for November 20th in Fullerton, CA? Great weather for outdoor activities.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 62° | 49° | 55° | 2.21" | — |
| 2024 | 75° | 50° | 63° | — | — |
| 2023 | 79° | 55° | 67° | — | — |
| 2022 | 82° | 60° | 71° | — | — |
| 2021 | 70° | 55° | 62° | — | — |
| 2020 | 78° | 52° | 65° | — | — |
| 2019 | 73° | 52° | 62° | 0.56" | — |
| 2018 | 76° | 50° | 63° | — | — |
| 2017 | 78° | 51° | 65° | — | — |
| 2016 | 71° | 55° | 63° | — | — |
| 2015 | 87° | 54° | 70° | — | — |
| 2014 | 71° | 52° | 61° | — | — |
| 2013 | 67° | 56° | 61° | — | — |
| 2012 | 73° | 49° | 61° | — | — |
| 2011 | 59° | 48° | 54° | 0.28" | — |
| 2010 | 61° | 46° | 53° | 6.78" | — |
| 2009 | 74° | 46° | 60° | — | — |
| 2008 | 81° | 51° | 66° | — | — |
| 2007 | 71° | 50° | 61° | — | — |
| 2006 | 89° | 61° | 75° | — | — |
| 2005 | 90° | 58° | 74° | — | — |
| 2004 | 70° | 54° | 62° | — | — |
| 2003 | 84° | 49° | 66° | — | — |
| 2002warmest | 88° | 67° | 77° | — | — |
| 2001 | 78° | 54° | 66° | — | — |
| 2000 | 81° | 50° | 65° | — | — |
| 1999 | 66° | 51° | 59° | — | — |
| 1998 | 80° | 59° | 70° | — | — |
| 1997 | 70° | 60° | 65° | — | — |
| 1996 | 71° | 56° | 63° | — | — |
| 1995 | 76° | 49° | 62° | — | — |
| 1994coldest | 65° | 36° | 50° | — | — |
| 1993 | 79° | 63° | 71° | — | — |
| 1992 | 71° | 48° | 60° | — | — |
| 1991 | 79° | 55° | 67° | — | — |
| 1990 | 67° | 54° | 60° | — | — |
| 1989 | 88° | 59° | 73° | — | — |
| 1988 | 73° | 40° | 56° | — | — |
| 1987 | 80° | 50° | 65° | — | — |
| 1986 | 74° | 52° | 63° | — | — |
| 1984 | 75° | 47° | 61° | — | — |
| 1983 | 66° | 52° | 59° | 1.6" | — |
| 1982 | 70° | 44° | 57° | — | — |
| 1981 | 80° | 45° | 62° | — | — |
| 1980 | 83° | 45° | 64° | — | — |
| 1979 | 68° | 34° | 51° | — | — |
| 1978 | 68° | 48° | 58° | — | — |
| 1977 | 72° | 41° | 56° | — | — |
| 1976 | 78° | 49° | 63° | — | — |
| 1975 | 70° | 37° | 53° | — | — |
| 1974 | 82° | 45° | 63° | — | — |
| 1973 | 65° | 38° | 51° | — | — |
| 1972 | 73° | 41° | 57° | — | — |
| 1971 | 73° | 50° | 62° | — | — |
54 years of data from ANAHEIM