Weather on October 11
Simi Valley, CA
55 Years of Data
Avg High
78°F
Avg Low
56°F
Warmest
2015
88°F avg
Coldest
2000
54°F avg
About This Date
October 11th in Simi Valley, CA typically brings pleasant fall weather, with average highs around 78°F and lows near 56°F. Over 31 years of records, the warmest October 11th was in 2015 (88°F average), while the coldest was 2000 (54°F) — a 34°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 3.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.3°F warmer on this date compared to 20-30 years ago.
Planning for October 11th in Simi Valley, CA? Great weather for outdoor activities.
Warming Trend
1.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 84° | 64° | 74° | — | — |
| 2024 | 89° | 69° | 79° | — | — |
| 2023 | 75° | 57° | 66° | — | — |
| 2022 | 83° | 58° | 70° | — | — |
| 2021 | 73° | 52° | 62° | — | — |
| 2020 | 84° | 58° | 71° | — | — |
| 2019 | 80° | 64° | 72° | — | — |
| 2018 | 71° | 54° | 62° | — | — |
| 2017 | 84° | 59° | 72° | — | — |
| 2016 | 78° | 55° | 67° | — | — |
| 2015warmest | 99° | 77° | 88° | — | — |
| 2014 | 91° | 61° | 76° | — | — |
| 2013 | 74° | 51° | 62° | — | — |
| 2012 | 63° | 50° | 56° | — | — |
| 2011 | 84° | 57° | 71° | — | — |
| 2010 | 91° | 58° | 74° | — | — |
| 2009 | 68° | 50° | 59° | — | — |
| 2008 | 63° | 45° | 54° | — | — |
| 2007 | 72° | 50° | 61° | — | — |
| 2006 | 73° | 50° | 62° | — | — |
| 2005 | 72° | 50° | 61° | — | — |
| 2004 | 75° | 52° | 63° | — | — |
| 2003 | 77° | 55° | 66° | — | — |
| 2002 | 70° | 54° | 62° | — | — |
| 2001 | 77° | 54° | 65° | — | — |
| 2000coldest | 59° | 48° | 54° | — | — |
| 1999 | 93° | 68° | 81° | — | — |
| 1998 | 86° | 59° | 73° | — | — |
| 1997 | 70° | 48° | 59° | — | — |
| 1996 | 92° | 65° | 78° | — | — |
| 1995 | 81° | 56° | 68° | — | — |
31 years of data from SIMI VALLEY CALIFORNIA