Weather on April 23
Simi Valley, CA
55 Years of Data
Avg High
71°F
Avg Low
49°F
Warmest
2020
78°F avg
Coldest
2008
11°F avg
About This Date
April 23rd in Simi Valley, CA typically brings pleasant spring weather, with average highs around 71°F and lows near 49°F. Over 30 years of records, the warmest April 23rd was in 2020 (78°F average), while the coldest was 2008 (11°F) — a 67°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.
Planning for April 23rd in Simi Valley, CA? Great weather for outdoor activities.
Warming Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 63° | 47° | 55° | — | — |
| 2024 | 64° | 46° | 55° | — | — |
| 2023 | 78° | 53° | 66° | — | — |
| 2022 | 77° | 51° | 64° | — | — |
| 2021 | 66° | 47° | 56° | — | — |
| 2020warmest | 87° | 69° | 78° | — | — |
| 2019 | 85° | 61° | 73° | — | — |
| 2018 | 86° | 57° | 72° | — | — |
| 2017 | 81° | 56° | 68° | — | — |
| 2016 | 73° | 51° | 62° | — | — |
| 2015 | 68° | 48° | 58° | — | — |
| 2014 | 77° | 51° | 64° | — | — |
| 2013 | 80° | 50° | 65° | — | — |
| 2012 | 57° | 52° | 54° | — | — |
| 2011 | 64° | 50° | 57° | — | — |
| 2010 | 64° | 41° | 53° | — | — |
| 2009 | 66° | 54° | 60° | — | — |
| 2008coldest | 63° | -40° | 11° | — | — |
| 2007 | 66° | 46° | 56° | — | — |
| 2006 | 55° | 46° | 51° | — | — |
| 2005 | 66° | 45° | 55° | — | — |
| 2004 | 84° | 61° | 72° | — | — |
| 2003 | 61° | 48° | 54° | — | — |
| 2002 | 77° | 46° | 62° | — | — |
| 2001 | 77° | 57° | 67° | — | — |
| 2000 | 67° | 49° | 58° | — | — |
| 1999 | 64° | 47° | 55° | — | — |
| 1998 | 57° | 48° | 53° | — | — |
| 1997 | 81° | 61° | 71° | — | — |
| 1996 | 88° | 66° | 77° | — | — |
30 years of data from SIMI VALLEY CALIFORNIA