Weather on April 1
Simi Valley, CA
55 Years of Data
Avg High
68°F
Avg Low
49°F
Warmest
2021
75°F avg
Coldest
1998
43°F avg
About This Date
April 1st in Simi Valley, CA typically brings mild spring weather, with average highs around 68°F and lows near 49°F. Over 31 years of records, the warmest April 1st was in 2021 (75°F average), while the coldest was 1998 (43°F) — a 32°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 5.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 5.8°F warmer on this date compared to 20-30 years ago.
Planning for April 1st in Simi Valley, CA? Great weather for outdoor activities.
Warming Trend
2.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 67° | 52° | 59° | — | — |
| 2025 | 57° | 43° | 50° | — | — |
| 2024 | 68° | 46° | 57° | — | — |
| 2023 | 69° | 49° | 59° | — | — |
| 2022 | 73° | 50° | 62° | — | — |
| 2021warmest | 86° | 64° | 75° | — | — |
| 2020 | 74° | 51° | 62° | — | — |
| 2019 | 82° | 62° | 72° | — | — |
| 2018 | 73° | 50° | 62° | — | — |
| 2017 | 76° | 53° | 64° | — | — |
| 2016 | 76° | 48° | 62° | — | — |
| 2015 | 74° | 54° | 64° | — | — |
| 2014 | 55° | 43° | 49° | — | — |
| 2013 | 61° | 47° | 54° | — | — |
| 2012 | 63° | 39° | 51° | — | — |
| 2011 | 88° | 59° | 73° | — | — |
| 2010 | 58° | 42° | 50° | — | — |
| 2009 | 66° | 48° | 57° | — | — |
| 2008 | 59° | 41° | 50° | — | — |
| 2007 | 72° | 50° | 61° | — | — |
| 2006 | 59° | 46° | 53° | — | — |
| 2005 | 79° | 57° | 68° | — | — |
| 2004 | 63° | 50° | 56° | — | — |
| 2003 | 70° | 52° | 61° | — | — |
| 2002 | 66° | 46° | 56° | — | — |
| 2001 | 56° | 50° | 53° | — | — |
| 2000 | 76° | 59° | 67° | — | — |
| 1999 | 52° | 40° | 46° | — | — |
| 1998coldest | 48° | 37° | 43° | — | — |
| 1997 | 63° | 47° | 55° | — | — |
| 1996 | 68° | 50° | 59° | — | — |
31 years of data from SIMI VALLEY CALIFORNIA