Weather on May 30
Simi Valley, CA
55 Years of Data
Avg High
80°F
Avg Low
54°F
Warmest
2025
79°F avg
Coldest
2007
58°F avg
About This Date
May 30th in Simi Valley, CA typically brings warm spring weather, with average highs around 80°F and lows near 54°F — a 26°F daily swing. Over 30 years of records, the warmest May 30th was in 2025 (79°F average), while the coldest was 2007 (58°F) — a 21°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 1.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.3°F cooler on this date compared to 20-30 years ago.
Planning for May 30th in Simi Valley, CA? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 101° | 58° | 79° | — | — |
| 2024 | 79° | 53° | 66° | — | — |
| 2023 | 67° | 51° | 59° | — | — |
| 2022 | 79° | 52° | 65° | — | — |
| 2021 | 80° | 52° | 66° | — | — |
| 2020 | 75° | 52° | 63° | — | — |
| 2019 | 84° | 54° | 69° | — | — |
| 2018 | 71° | 54° | 62° | — | — |
| 2017 | 82° | 53° | 68° | — | — |
| 2016 | 78° | 51° | 65° | — | — |
| 2015 | 91° | 58° | 74° | — | — |
| 2014 | 91° | 59° | 75° | — | — |
| 2013 | 88° | 62° | 75° | — | — |
| 2012 | 75° | 52° | 63° | — | — |
| 2011 | 72° | 48° | 60° | — | — |
| 2010 | 85° | 60° | 72° | — | — |
| 2009 | 65° | 56° | 60° | — | — |
| 2008 | 72° | 50° | 61° | — | — |
| 2007coldest | 68° | 48° | 58° | — | — |
| 2006 | 79° | 57° | 68° | — | — |
| 2005 | 73° | 54° | 63° | — | — |
| 2004 | 81° | 54° | 67° | — | — |
| 2003 | 75° | 55° | 65° | — | — |
| 2002 | 86° | 54° | 70° | — | — |
| 2001 | 95° | 59° | 77° | — | — |
| 2000 | 83° | 58° | 70° | — | — |
| 1999 | 71° | 48° | 60° | — | — |
| 1998 | 75° | 52° | 63° | — | — |
| 1997 | 94° | 62° | 78° | — | — |
| 1996 | 75° | 49° | 62° | — | — |
30 years of data from SIMI VALLEY CALIFORNIA