Weather on April 3
Simi Valley, CA
55 Years of Data
Avg High
67°F
Avg Low
48°F
Warmest
2015
70°F avg
Coldest
1999
45°F avg
About This Date
April 3rd in Simi Valley, CA typically brings mild spring weather, with average highs around 67°F and lows near 48°F. Over 31 years of records, the warmest April 3rd was in 2015 (70°F average), while the coldest was 1999 (45°F) — a 25°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 6.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 6.1°F warmer on this date compared to 20-30 years ago.
Planning for April 3rd in Simi Valley, CA? Great weather for outdoor activities.
Warming Trend
2.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 70° | 52° | 61° | — | — |
| 2025 | 63° | 43° | 53° | — | — |
| 2024 | 76° | 51° | 63° | — | — |
| 2023 | 59° | 43° | 51° | — | — |
| 2022 | 64° | 50° | 57° | — | — |
| 2021 | 80° | 54° | 67° | — | — |
| 2020 | 69° | 48° | 59° | — | — |
| 2019 | 64° | 49° | 56° | — | — |
| 2018 | 70° | 48° | 59° | — | — |
| 2017 | 69° | 47° | 58° | — | — |
| 2016 | 81° | 59° | 70° | — | — |
| 2015warmest | 81° | 60° | 70° | — | — |
| 2014 | 68° | 43° | 55° | — | — |
| 2013 | 80° | 51° | 66° | — | — |
| 2012 | 73° | 50° | 62° | — | — |
| 2011 | 63° | 50° | 56° | — | — |
| 2010 | 64° | 46° | 55° | — | — |
| 2009 | 64° | 52° | 58° | — | — |
| 2008 | 64° | 50° | 57° | — | — |
| 2007 | 68° | 48° | 58° | — | — |
| 2006 | 59° | 54° | 56° | — | — |
| 2005 | 64° | 45° | 54° | — | — |
| 2004 | 66° | 55° | 61° | — | — |
| 2003 | 59° | 39° | 49° | — | — |
| 2002 | 55° | 48° | 52° | — | — |
| 2001 | 54° | 44° | 49° | — | — |
| 2000 | 80° | 53° | 67° | — | — |
| 1999coldest | 53° | 38° | 45° | — | — |
| 1998 | 53° | 40° | 46° | — | — |
| 1997 | 65° | 45° | 55° | — | — |
| 1996 | 65° | 48° | 56° | — | — |
31 years of data from SIMI VALLEY CALIFORNIA