Weather on January 9
Simi Valley, CA
55 Years of Data
Avg High
64°F
Avg Low
50°F
Warmest
2007
68°F avg
Coldest
2011
46°F avg
About This Date
January 9th in Simi Valley, CA typically brings mild winter weather, with average highs around 64°F and lows near 50°F. Over 31 years of records, the warmest January 9th was in 2007 (68°F average), while the coldest was 2011 (46°F) — a 22°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 3.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.3°F cooler on this date compared to 20-30 years ago.
Planning for January 9th in Simi Valley, CA? Great weather for outdoor activities.
Cooling Trend
1.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 50° | 45° | 47° | — | — |
| 2025 | 70° | 59° | 64° | — | — |
| 2024 | 62° | 46° | 54° | — | — |
| 2023 | 55° | 46° | 51° | — | — |
| 2022 | 68° | 51° | 60° | — | — |
| 2021 | 65° | 58° | 61° | — | — |
| 2020 | 56° | 43° | 49° | — | — |
| 2019 | 64° | 51° | 58° | — | — |
| 2018 | 55° | 48° | 52° | — | — |
| 2017 | 56° | 48° | 52° | — | — |
| 2016 | 56° | 44° | 50° | — | — |
| 2015 | 69° | 54° | 61° | — | — |
| 2014 | 68° | 48° | 58° | — | — |
| 2013 | 69° | 44° | 57° | — | — |
| 2012 | 73° | 50° | 62° | — | — |
| 2011coldest | 55° | 37° | 46° | — | — |
| 2010 | 72° | 55° | 63° | — | — |
| 2009 | 68° | 45° | 56° | — | — |
| 2008 | 57° | 39° | 48° | — | — |
| 2007warmest | 81° | 55° | 68° | — | — |
| 2006 | 66° | 59° | 63° | — | — |
| 2005 | 59° | 55° | 57° | — | — |
| 2004 | 73° | 57° | 65° | — | — |
| 2003 | 63° | 48° | 55° | — | — |
| 2002 | 61° | 46° | 53° | — | — |
| 2001 | 62° | 47° | 54° | — | — |
| 2000 | 67° | 54° | 60° | — | — |
| 1999 | 73° | 59° | 66° | — | — |
| 1998 | 54° | 50° | 52° | — | — |
| 1997 | 67° | 46° | 56° | — | — |
| 1996 | 60° | 58° | 59° | — | — |
31 years of data from SIMI VALLEY CALIFORNIA