Weather on November 20
Costa Mesa, CA
55 Years of Data
Avg High
73°F
Avg Low
51°F
Warmest
2002
77°F avg
Coldest
1994
51°F avg
About This Date
November 20th in Costa Mesa, CA typically brings pleasant fall weather, with average highs around 73°F and lows near 51°F. Over 55 years of records, the warmest November 20th was in 2002 (77°F average), while the coldest was 1994 (51°F) — a 26°F range across recorded history. Rain or other precipitation has occurred on about 20% of November 20th dates historically, with the wettest November 20th recording 2.24" of rain. The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
Planning for November 20th in Costa Mesa, CA? Great weather for outdoor activities.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 64° | 52° | 58° | 2.24" | — |
| 2024 | 73° | 47° | 60° | — | — |
| 2023 | 78° | 55° | 67° | — | — |
| 2022 | 81° | 49° | 65° | — | — |
| 2021 | 69° | 58° | 63° | — | — |
| 2020 | 72° | 52° | 62° | — | — |
| 2019 | 65° | 56° | 60° | 0.43" | — |
| 2018 | 72° | 52° | 62° | — | — |
| 2017 | 74° | 50° | 62° | — | — |
| 2016 | 67° | 56° | 61° | 0.58" | — |
| 2015 | 79° | 51° | 65° | — | — |
| 2014 | 72° | 54° | 63° | — | — |
| 2013 | 68° | 57° | 63° | 0.28" | — |
| 2012 | 72° | 52° | 62° | — | — |
| 2011 | 62° | 52° | 57° | 1.12" | — |
| 2010 | 68° | 61° | 64° | 1.19" | — |
| 2009 | 68° | 47° | 57° | 0.03" | — |
| 2008 | 74° | 50° | 62° | 0.03" | — |
| 2007 | 64° | 53° | 59° | — | — |
| 2006 | 85° | 55° | 70° | — | — |
| 2005 | 85° | 51° | 68° | — | — |
| 2004 | 67° | 53° | 60° | — | — |
| 2003 | 66° | 52° | 59° | — | — |
| 2002warmest | 90° | 65° | 77° | — | — |
| 2001 | 72° | 52° | 62° | — | — |
| 2000 | 79° | 45° | 62° | — | — |
| 1999 | 63° | 55° | 59° | — | — |
| 1998 | 80° | 51° | 66° | — | — |
| 1997 | 71° | 59° | 65° | 0.25" | — |
| 1996 | 73° | 55° | 64° | — | — |
| 1995 | 75° | 50° | 63° | — | — |
| 1994coldest | 65° | 37° | 51° | — | — |
| 1993 | 80° | 52° | 66° | — | — |
| 1992 | 72° | 53° | 62° | — | — |
| 1991 | 80° | 50° | 65° | — | — |
| 1990 | 68° | 54° | 61° | 0.64" | — |
| 1989 | 85° | 63° | 74° | — | — |
| 1988 | 73° | 40° | 56° | — | — |
| 1987 | 80° | 50° | 65° | — | — |
| 1986 | 74° | 52° | 63° | — | — |
| 1985 | 71° | 37° | 54° | — | — |
| 1984 | 75° | 47° | 61° | — | — |
| 1983 | 66° | 52° | 59° | 1.6" | — |
| 1982 | 66° | 52° | 59° | — | — |
| 1981 | 76° | 47° | 61° | — | — |
| 1980 | 81° | 44° | 62° | — | — |
| 1979 | 67° | 41° | 54° | — | — |
| 1978 | 67° | 53° | 60° | — | — |
| 1977 | 66° | 49° | 57° | — | — |
| 1976 | 73° | 48° | 61° | — | — |
| 1975 | 71° | 41° | 56° | — | — |
| 1974 | 77° | 51° | 64° | — | — |
| 1973 | 65° | 43° | 54° | — | — |
| 1972 | 72° | 44° | 58° | — | — |
| 1971 | 71° | 49° | 60° | — | — |
55 years of data from SANTA ANA JOHN WAYNE AP