Weather on December 6
Simi Valley, CA
55 Years of Data
Avg High
66°F
Avg Low
51°F
Warmest
2024
72°F avg
Coldest
1998
44°F avg
About This Date
December 6th in Simi Valley, CA typically brings mild winter weather, with average highs around 66°F and lows near 51°F. Over 31 years of records, the warmest December 6th was in 2024 (72°F average), while the coldest was 1998 (44°F) — a 28°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 4.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.3°F warmer on this date compared to 20-30 years ago.
Planning for December 6th in Simi Valley, CA? Great weather for outdoor activities.
Warming Trend
1.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 69° | 58° | 63° | — | — |
| 2024warmest | 78° | 67° | 72° | — | — |
| 2023 | 77° | 52° | 64° | — | — |
| 2022 | 57° | 46° | 52° | — | — |
| 2021 | 75° | 50° | 63° | — | — |
| 2020 | 76° | 58° | 67° | — | — |
| 2019 | 64° | 51° | 58° | — | — |
| 2018 | 50° | 44° | 47° | — | — |
| 2017 | 69° | 55° | 62° | — | — |
| 2016 | 62° | 47° | 54° | — | — |
| 2015 | 78° | 59° | 69° | — | — |
| 2014 | 69° | 55° | 62° | — | — |
| 2013 | 56° | 40° | 48° | — | — |
| 2012 | 73° | 50° | 62° | — | — |
| 2011 | 63° | 50° | 56° | — | — |
| 2010 | 62° | 46° | 54° | — | — |
| 2009 | 54° | 42° | 48° | — | — |
| 2008 | 73° | 55° | 64° | — | — |
| 2007 | 63° | 50° | 56° | — | — |
| 2006 | 79° | 55° | 67° | — | — |
| 2005 | 70° | 52° | 61° | — | — |
| 2004 | 55° | 37° | 46° | — | — |
| 2003 | 64° | 48° | 56° | — | — |
| 2002 | 68° | 48° | 58° | — | — |
| 2001 | 70° | 52° | 61° | — | — |
| 2000 | 72° | 59° | 65° | — | — |
| 1999 | 71° | 55° | 63° | — | — |
| 1998coldest | 49° | 39° | 44° | — | — |
| 1997 | 54° | 46° | 50° | — | — |
| 1996 | 61° | 49° | 55° | — | — |
| 1995 | 77° | 60° | 69° | — | — |
31 years of data from SIMI VALLEY CALIFORNIA