Weather on April 13
Simi Valley, CA
55 Years of Data
Avg High
69°F
Avg Low
49°F
Warmest
2008
77°F avg
Coldest
1998
47°F avg
About This Date
April 13th in Simi Valley, CA typically brings mild spring weather, with average highs around 69°F and lows near 49°F. Over 30 years of records, the warmest April 13th was in 2008 (77°F average), while the coldest was 1998 (47°F) — a 30°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 1.7°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.7°F cooler on this date compared to 20-30 years ago.
Planning for April 13th in Simi Valley, CA? Great weather for outdoor activities.
Cooling Trend
1.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 75° | 51° | 63° | — | — |
| 2024 | 53° | 41° | 47° | — | — |
| 2023 | 59° | 46° | 53° | — | — |
| 2022 | 70° | 44° | 57° | — | — |
| 2021 | 62° | 47° | 54° | — | — |
| 2020 | 66° | 48° | 57° | — | — |
| 2019 | 78° | 54° | 66° | — | — |
| 2018 | 72° | 49° | 60° | — | — |
| 2017 | 64° | 47° | 55° | — | — |
| 2016 | 71° | 50° | 61° | — | — |
| 2015 | 79° | 53° | 66° | — | — |
| 2014 | 70° | 47° | 58° | — | — |
| 2013 | 69° | 50° | 60° | — | — |
| 2012 | 54° | 43° | 48° | — | — |
| 2011 | 61° | 48° | 54° | — | — |
| 2010 | 65° | 43° | 54° | — | — |
| 2009 | 75° | 52° | 63° | — | — |
| 2008warmest | 91° | 63° | 77° | — | — |
| 2007 | 77° | 54° | 65° | — | — |
| 2006 | 77° | 45° | 61° | — | — |
| 2005 | 68° | 48° | 58° | — | — |
| 2004 | 68° | 43° | 55° | — | — |
| 2003 | 61° | 54° | 57° | — | — |
| 2002 | 77° | 50° | 64° | — | — |
| 2001 | 73° | 51° | 62° | — | — |
| 2000 | 74° | 50° | 62° | — | — |
| 1999 | 66° | 45° | 55° | — | — |
| 1998coldest | 54° | 41° | 47° | — | — |
| 1997 | 80° | 56° | 68° | — | — |
| 1996 | 74° | 50° | 62° | — | — |
30 years of data from SIMI VALLEY CALIFORNIA