Weather on November 20
Simi Valley, CA
55 Years of Data
Avg High
70°F
Avg Low
54°F
Warmest
2002
80°F avg
Coldest
2011
48°F avg
About This Date
November 20th in Simi Valley, CA typically brings pleasant fall weather, with average highs around 70°F and lows near 54°F. Over 31 years of records, the warmest November 20th was in 2002 (80°F average), while the coldest was 2011 (48°F) — a 32°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 4.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.1°F cooler on this date compared to 20-30 years ago.
Planning for November 20th in Simi Valley, CA? Great weather for outdoor activities.
Cooling Trend
1.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 50° | 47° | 48° | — | — |
| 2024 | 72° | 54° | 63° | — | — |
| 2023 | 67° | 56° | 61° | — | — |
| 2022 | 71° | 55° | 63° | — | — |
| 2021 | 74° | 50° | 62° | — | — |
| 2020 | 78° | 60° | 69° | — | — |
| 2019 | 55° | 46° | 51° | — | — |
| 2018 | 72° | 54° | 63° | — | — |
| 2017 | 76° | 60° | 68° | — | — |
| 2016 | 60° | 50° | 55° | — | — |
| 2015 | 87° | 68° | 78° | — | — |
| 2014 | 65° | 52° | 58° | — | — |
| 2013 | 61° | 50° | 55° | — | — |
| 2012 | 68° | 48° | 58° | — | — |
| 2011coldest | 52° | 45° | 48° | — | — |
| 2010 | 56° | 48° | 52° | — | — |
| 2009 | 72° | 48° | 60° | — | — |
| 2008 | 81° | 54° | 67° | — | — |
| 2007 | 66° | 46° | 56° | — | — |
| 2006 | 88° | 61° | 74° | — | — |
| 2005 | 81° | 70° | 75° | — | — |
| 2004 | 68° | 46° | 57° | — | — |
| 2003 | 72° | 50° | 61° | — | — |
| 2002warmest | 84° | 75° | 80° | — | — |
| 2001 | 75° | 57° | 66° | — | — |
| 2000 | 73° | 58° | 65° | — | — |
| 1999 | 64° | 50° | 57° | — | — |
| 1998 | 74° | 57° | 65° | — | — |
| 1997 | 73° | 52° | 62° | — | — |
| 1996 | 61° | 52° | 56° | — | — |
| 1995 | 79° | 60° | 69° | — | — |
31 years of data from SIMI VALLEY CALIFORNIA