Weather on March 19
Simi Valley, CA
55 Years of Data
Avg High
71°F
Avg Low
50°F
Warmest
2026
83°F avg
Coldest
2006
48°F avg
About This Date
March 19th in Simi Valley, CA typically brings pleasant spring weather, with average highs around 71°F and lows near 50°F. Over 31 years of records, the warmest March 19th was in 2026 (83°F average), while the coldest was 2006 (48°F) — a 35°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 2.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.5°F cooler on this date compared to 20-30 years ago.
Planning for March 19th in Simi Valley, CA? Great weather for outdoor activities.
Cooling Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026warmest | 93° | 74° | 83° | — | — |
| 2025 | 70° | 51° | 60° | — | — |
| 2024 | 75° | 52° | 63° | — | — |
| 2023 | 56° | 47° | 51° | — | — |
| 2022 | 69° | 49° | 59° | — | — |
| 2021 | 71° | 51° | 61° | — | — |
| 2020 | 58° | 43° | 50° | — | — |
| 2019 | 67° | 49° | 58° | — | — |
| 2018 | 69° | 49° | 59° | — | — |
| 2017 | 77° | 47° | 62° | — | — |
| 2016 | 75° | 50° | 63° | — | — |
| 2015 | 78° | 53° | 66° | — | — |
| 2014 | 78° | 54° | 66° | — | — |
| 2013 | 72° | 48° | 60° | — | — |
| 2012 | 57° | 39° | 48° | — | — |
| 2011 | 54° | 46° | 50° | — | — |
| 2010 | 77° | 47° | 62° | — | — |
| 2009 | 75° | 48° | 62° | — | — |
| 2008 | 61° | 45° | 53° | — | — |
| 2007 | 63° | 54° | 58° | — | — |
| 2006coldest | 57° | 39° | 48° | — | — |
| 2005 | 57° | 46° | 52° | — | — |
| 2004 | 70° | 52° | 61° | — | — |
| 2003 | 70° | 50° | 60° | — | — |
| 2002 | 72° | 46° | 59° | — | — |
| 2001 | 84° | 64° | 74° | — | — |
| 2000 | 76° | 54° | 65° | — | — |
| 1999 | 63° | 45° | 54° | — | — |
| 1998 | 72° | 50° | 61° | — | — |
| 1997 | 93° | 67° | 80° | — | — |
| 1996 | 81° | 53° | 67° | — | — |
31 years of data from SIMI VALLEY CALIFORNIA