Weather on May 11
Simi Valley, CA
55 Years of Data
Avg High
78°F
Avg Low
54°F
Warmest
2006
129°F avg
Coldest
2010
54°F avg
About This Date
May 11th in Simi Valley, CA typically brings pleasant spring weather, with average highs around 78°F and lows near 54°F. Over 30 years of records, the warmest May 11th was in 2006 (129°F average), while the coldest was 2010 (54°F) — a 75°F range across recorded history. This date has historically been dry, with little recorded precipitation. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for May 11th in Simi Valley, CA? Great weather for outdoor activities.
Cooling Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 94° | 62° | 78° | — | — |
| 2024 | 82° | 52° | 67° | — | — |
| 2023 | 76° | 48° | 62° | — | — |
| 2022 | 69° | 47° | 58° | — | — |
| 2021 | 79° | 52° | 65° | — | — |
| 2020 | 78° | 50° | 64° | — | — |
| 2019 | 76° | 53° | 64° | — | — |
| 2018 | 58° | 53° | 55° | — | — |
| 2017 | 78° | 52° | 65° | — | — |
| 2016 | 79° | 51° | 65° | — | — |
| 2015 | 82° | 56° | 69° | — | — |
| 2014 | 79° | 55° | 67° | — | — |
| 2013 | 96° | 58° | 77° | — | — |
| 2012 | 72° | 54° | 63° | — | — |
| 2011 | 68° | 48° | 58° | — | — |
| 2010coldest | 64° | 44° | 54° | — | — |
| 2009 | 70° | 50° | 60° | — | — |
| 2008 | 66° | 50° | 58° | — | — |
| 2007 | 72° | 48° | 60° | — | — |
| 2006warmest | 133° | 126° | 129° | — | — |
| 2005 | 73° | 55° | 64° | — | — |
| 2004 | 70° | 52° | 61° | — | — |
| 2003 | 73° | 52° | 62° | — | — |
| 2002 | 72° | 46° | 59° | — | — |
| 2001 | 91° | 51° | 71° | — | — |
| 2000 | 67° | 48° | 57° | — | — |
| 1999 | 79° | 51° | 65° | — | — |
| 1998 | 64° | 47° | 55° | — | — |
| 1997 | 88° | 54° | 71° | — | — |
| 1996 | 96° | 67° | 81° | — | — |
30 years of data from SIMI VALLEY CALIFORNIA