Weather on December 7
Simi Valley, CA
55 Years of Data
Avg High
65°F
Avg Low
52°F
Warmest
2006
74°F avg
Coldest
2009
42°F avg
About This Date
December 7th in Simi Valley, CA typically brings mild winter weather, with average highs around 65°F and lows near 52°F. Over 31 years of records, the warmest December 7th was in 2006 (74°F average), while the coldest was 2009 (42°F) — a 32°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 2.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.8°F warmer on this date compared to 20-30 years ago.
Planning for December 7th in Simi Valley, CA? Great weather for outdoor activities.
Warming Trend
1.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 76° | 59° | 67° | — | — |
| 2024 | 79° | 61° | 70° | — | — |
| 2023 | 68° | 47° | 57° | — | — |
| 2022 | 57° | 44° | 51° | — | — |
| 2021 | 59° | 50° | 55° | — | — |
| 2020 | 69° | 55° | 62° | — | — |
| 2019 | 59° | 53° | 56° | — | — |
| 2018 | 60° | 48° | 54° | — | — |
| 2017 | 68° | 59° | 64° | — | — |
| 2016 | 61° | 45° | 53° | — | — |
| 2015 | 80° | 64° | 72° | — | — |
| 2014 | 72° | 58° | 65° | — | — |
| 2013 | 50° | 37° | 44° | — | — |
| 2012 | 76° | 56° | 66° | — | — |
| 2011 | 68° | 50° | 59° | — | — |
| 2010 | 74° | 59° | 66° | — | — |
| 2009coldest | 47° | 37° | 42° | — | — |
| 2008 | 63° | 50° | 56° | — | — |
| 2007 | 55° | 45° | 50° | — | — |
| 2006warmest | 81° | 68° | 74° | — | — |
| 2005 | 70° | 54° | 62° | — | — |
| 2004 | 52° | 46° | 49° | — | — |
| 2003 | 57° | 54° | 55° | — | — |
| 2002 | 63° | 46° | 54° | — | — |
| 2001 | 72° | 61° | 66° | — | — |
| 2000 | 69° | 52° | 60° | — | — |
| 1999 | 68° | 50° | 59° | — | — |
| 1998 | 54° | 42° | 48° | — | — |
| 1997 | 57° | 47° | 52° | — | — |
| 1996 | 68° | 45° | 56° | — | — |
| 1995 | 72° | 58° | 65° | — | — |
31 years of data from SIMI VALLEY CALIFORNIA