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Simi Valley, CA Weather on April 11
April 11th in Simi Valley, CA typically brings pleasant spring weather, with average highs around 71°F and lows near 50°F. Over 30 years of records, the warmest April 11th was in 2025 (74°F average), while the coldest was 1999 (45°F) — a 29°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 6.8°F warmer on this date compared to 20-30 years ago.
What to Expect on April 11
Planning for April 11th in Simi Valley, CA? Great weather for outdoor activities.
April 11 Weather Records for Simi Valley
- •The all-time record high for April 11th in Simi Valley, CA is 87°F, set in 2000.
- •The coldest April 11th on record dropped to 43°F in 2001.
Frequently Asked Questions
What was the warmest April 11 ever in Simi Valley?
The warmest April 11 in Simi Valley, CA reached 87°F in 2000. That is 16°F above the long-term average high of 71°F.
What was the coldest April 11 ever in Simi Valley?
The coldest April 11 in Simi Valley, CA dropped to 43°F in 2001. That is 7°F below the long-term average low of 50°F.
What is the average temperature on April 11 in Simi Valley?
On April 11, Simi Valley averages a high of 71°F and a low of 50°F based on 30 years of NOAA weather observations from SIMI VALLEY CALIFORNIA.
How many years of weather data are available for April 11 in Simi Valley?
We have 30 years of weather records for April 11 in Simi Valley, CA, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
April 11 Weather History in Simi Valley
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 85°F | 63°F | -- | -- |
| 2024 | 86°F | 56°F | -- | -- |
| 2023 | 78°F | 52°F | -- | -- |
| 2022 | 70°F | 46°F | -- | -- |
| 2021 | 81°F | 52°F | -- | -- |
| 2020 | 71°F | 50°F | -- | -- |
| 2019 | 75°F | 54°F | -- | -- |
| 2018 | 80°F | 49°F | -- | -- |
| 2017 | 72°F | 51°F | -- | -- |
| 2016 | 71°F | 52°F | -- | -- |
| 2015 | 77°F | 50°F | -- | -- |
| 2014 | 84°F | 54°F | -- | -- |
| 2013 | 79°F | 51°F | -- | -- |
| 2012 | 57°F | 48°F | -- | -- |
| 2011 | 68°F | 46°F | -- | -- |
| 2010 | 57°F | 49°F | -- | -- |
| 2009 | 63°F | 45°F | -- | -- |
| 2008 | 84°F | 54°F | -- | -- |
| 2007 | 64°F | 48°F | -- | -- |
| 2006 | 61°F | 50°F | -- | -- |
| 2005 | 73°F | 50°F | -- | -- |
| 2004 | 82°F | 52°F | -- | -- |
| 2003 | 66°F | 48°F | -- | -- |
| 2002 | 73°F | 48°F | -- | -- |
| 2001 | 52°F | 43°F | -- | -- |
| 2000 | 87°F | 58°F | -- | -- |
| 1999 | 47°F | 43°F | -- | -- |
| 1998 | 50°F | 45°F | -- | -- |
| 1997 | 72°F | 47°F | -- | -- |
| 1996 | 72°F | 49°F | -- | -- |
Based on 30 years of data from NOAA station: SIMI VALLEY CALIFORNIA
Monthly Climate Averages
Historical temperature and precipitation averages for Simi Valley, CA, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.