Weather on May 25
Simi Valley, CA
55 Years of Data
Avg High
73°F
Avg Low
52°F
Warmest
2020
76°F avg
Coldest
2008
53°F avg
About This Date
May 25th in Simi Valley, CA typically brings pleasant spring weather, with average highs around 73°F and lows near 52°F. Over 30 years of records, the warmest May 25th was in 2020 (76°F average), while the coldest was 2008 (53°F) — a 23°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
Planning for May 25th in Simi Valley, CA? Great weather for outdoor activities.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 79° | 52° | 65° | — | — |
| 2024 | 70° | 47° | 58° | — | — |
| 2023 | 64° | 51° | 58° | — | — |
| 2022 | 93° | 54° | 73° | — | — |
| 2021 | 90° | 63° | 76° | — | — |
| 2020warmest | 94° | 58° | 76° | — | — |
| 2019 | 73° | 49° | 61° | — | — |
| 2018 | 66° | 49° | 57° | — | — |
| 2017 | 66° | 50° | 58° | — | — |
| 2016 | 66° | 50° | 58° | — | — |
| 2015 | 72° | 52° | 62° | — | — |
| 2014 | 81° | 56° | 68° | — | — |
| 2013 | 77° | 50° | 64° | — | — |
| 2012 | 64° | 50° | 57° | — | — |
| 2011 | 70° | 50° | 60° | — | — |
| 2010 | 66° | 47° | 56° | — | — |
| 2009 | 68° | 52° | 60° | — | — |
| 2008coldest | 61° | 46° | 53° | — | — |
| 2007 | 72° | 54° | 63° | — | — |
| 2006 | 75° | 55° | 65° | — | — |
| 2005 | 73° | 55° | 64° | — | — |
| 2004 | 64° | 52° | 58° | — | — |
| 2003 | 63° | 54° | 58° | — | — |
| 2002 | 70° | 52° | 61° | — | — |
| 2001 | 85° | 57° | 71° | — | — |
| 2000 | 60° | 54° | 57° | — | — |
| 1999 | 85° | 56° | 70° | — | — |
| 1998 | 68° | 50° | 59° | — | — |
| 1997 | 79° | 54° | 66° | — | — |
| 1996 | 72° | 50° | 61° | — | — |
30 years of data from SIMI VALLEY CALIFORNIA