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Thousand Oaks, CA Weather on April 20
April 20th in Thousand Oaks, CA typically brings pleasant spring weather, with average highs around 73°F and lows near 51°F. Over 30 years of records, the warmest April 20th was in 2009 (78°F average), while the coldest was 2001 (50°F) — a 28°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 1.0°F warmer on this date compared to 20-30 years ago.
What to Expect on April 20
Planning for April 20th in Thousand Oaks, CA? Great weather for outdoor activities.
April 20 Weather Records for Thousand Oaks
- •The all-time record high for April 20th in Thousand Oaks, CA is 95°F, set in 2009.
- •The coldest April 20th on record dropped to 41°F in 2002.
- •Temperatures have reached 90°F or higher on April 20th in 2 of the last 30 years.
- •Last year (1996), April 20th was 6°F cooler than the long-term average.
Frequently Asked Questions
What was the warmest April 20 ever in Thousand Oaks?
The warmest April 20 in Thousand Oaks, CA reached 95°F in 2009. That is 22°F above the long-term average high of 73°F.
What was the coldest April 20 ever in Thousand Oaks?
The coldest April 20 in Thousand Oaks, CA dropped to 41°F in 2002. That is 10°F below the long-term average low of 51°F.
What is the average temperature on April 20 in Thousand Oaks?
On April 20, Thousand Oaks averages a high of 73°F and a low of 51°F based on 30 years of NOAA weather observations from THOUSAND OAKS CALIFORNIA.
How many years of weather data are available for April 20 in Thousand Oaks?
We have 30 years of weather records for April 20 in Thousand Oaks, 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 20 Weather History in Thousand Oaks
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 78°F | 51°F | -- | -- |
| 2024 | 71°F | 49°F | -- | -- |
| 2023 | 78°F | 54°F | -- | -- |
| 2022 | 71°F | 46°F | -- | -- |
| 2021 | 78°F | 50°F | -- | -- |
| 2020 | 64°F | 49°F | -- | -- |
| 2019 | 63°F | 49°F | -- | -- |
| 2018 | 73°F | 46°F | -- | -- |
| 2017 | 78°F | 56°F | -- | -- |
| 2016 | 85°F | 60°F | -- | -- |
| 2015 | 76°F | 47°F | -- | -- |
| 2014 | 80°F | 54°F | -- | -- |
| 2013 | 90°F | 64°F | -- | -- |
| 2012 | 81°F | 54°F | -- | -- |
| 2011 | 64°F | 52°F | -- | -- |
| 2010 | 61°F | 48°F | -- | -- |
| 2009 | 95°F | 61°F | -- | -- |
| 2008 | 61°F | 43°F | -- | -- |
| 2007 | 54°F | 48°F | -- | -- |
| 2006 | 73°F | 50°F | -- | -- |
| 2005 | 64°F | 45°F | -- | -- |
| 2004 | 66°F | 48°F | -- | -- |
| 2003 | 70°F | 48°F | -- | -- |
| 2002 | 66°F | 41°F | -- | -- |
| 2001 | 58°F | 42°F | -- | -- |
| 2000 | 78°F | 55°F | -- | -- |
| 1999 | 80°F | 59°F | -- | -- |
| 1998 | 87°F | 59°F | -- | -- |
| 1997 | 86°F | 59°F | -- | -- |
| 1996 | 67°F | 50°F | -- | -- |
Based on 30 years of data from NOAA station: THOUSAND OAKS CALIFORNIA
Monthly Climate Averages
Historical temperature and precipitation averages for Thousand Oaks, CA, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.