Weather on May 13
Simi Valley, CA
55 Years of Data
Avg High
80°F
Avg Low
57°F
Warmest
2006
138°F avg
Coldest
1998
51°F avg
About This Date
May 13th in Simi Valley, CA typically brings warm spring weather, with average highs around 80°F and lows near 57°F. Over 30 years of records, the warmest May 13th was in 2006 (138°F average), while the coldest was 1998 (51°F) — a 87°F range across recorded history. This date has historically been dry, with little recorded precipitation. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for May 13th in Simi Valley, CA? Stay hydrated and seek shade during peak afternoon hours.
Cooling Trend
1.1°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 71° | 47° | 59° | — | — |
| 2024 | 74° | 52° | 63° | — | — |
| 2023 | 89° | 54° | 71° | — | — |
| 2022 | 94° | 65° | 79° | — | — |
| 2021 | 79° | 52° | 65° | — | — |
| 2020 | 73° | 51° | 62° | — | — |
| 2019 | 76° | 55° | 65° | — | — |
| 2018 | 67° | 49° | 58° | — | — |
| 2017 | 73° | 51° | 62° | — | — |
| 2016 | 85° | 54° | 69° | — | — |
| 2015 | 69° | 50° | 60° | — | — |
| 2014 | 87° | 71° | 79° | — | — |
| 2013 | 97° | 74° | 85° | — | — |
| 2012 | 70° | 52° | 61° | — | — |
| 2011 | 73° | 52° | 62° | — | — |
| 2010 | 73° | 52° | 62° | — | — |
| 2009 | 75° | 52° | 63° | — | — |
| 2008 | 79° | 46° | 62° | — | — |
| 2007 | 68° | 48° | 58° | — | — |
| 2006warmest | 142° | 135° | 138° | — | — |
| 2005 | 82° | 57° | 70° | — | — |
| 2004 | 77° | 55° | 66° | — | — |
| 2003 | 73° | 54° | 63° | — | — |
| 2002 | 88° | 57° | 72° | — | — |
| 2001 | 71° | 51° | 61° | — | — |
| 2000 | 80° | 56° | 68° | — | — |
| 1999 | 73° | 52° | 62° | — | — |
| 1998coldest | 58° | 44° | 51° | — | — |
| 1997 | 88° | 56° | 72° | — | — |
| 1996 | 87° | 58° | 72° | — | — |
30 years of data from SIMI VALLEY CALIFORNIA