Weather on January 17
Simi Valley, CA
55 Years of Data
Avg High
66°F
Avg Low
52°F
Warmest
2011
78°F avg
Coldest
2007
45°F avg
About This Date
January 17th in Simi Valley, CA typically brings mild winter weather, with average highs around 66°F and lows near 52°F. Over 31 years of records, the warmest January 17th was in 2011 (78°F average), while the coldest was 2007 (45°F) — a 33°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 January 17th in Simi Valley, CA? Great weather for outdoor activities.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 76° | 64° | 70° | — | — |
| 2025 | 59° | 43° | 51° | — | — |
| 2024 | 53° | 46° | 50° | — | — |
| 2023 | 55° | 39° | 47° | — | — |
| 2022 | 60° | 51° | 56° | — | — |
| 2021 | 82° | 68° | 75° | — | — |
| 2020 | 59° | 42° | 51° | — | — |
| 2019 | 56° | 52° | 54° | — | — |
| 2018 | 78° | 62° | 70° | — | — |
| 2017 | 64° | 49° | 56° | — | — |
| 2016 | 66° | 50° | 58° | — | — |
| 2015 | 73° | 61° | 67° | — | — |
| 2014 | 82° | 64° | 73° | — | — |
| 2013 | 70° | 59° | 64° | — | — |
| 2012 | 55° | 41° | 48° | — | — |
| 2011warmest | 87° | 68° | 78° | — | — |
| 2010 | 57° | 47° | 52° | — | — |
| 2009 | 77° | 66° | 72° | — | — |
| 2008 | 59° | 46° | 53° | — | — |
| 2007coldest | 50° | 39° | 45° | — | — |
| 2006 | 64° | 48° | 56° | — | — |
| 2005 | 73° | 64° | 69° | — | — |
| 2004 | 70° | 43° | 56° | — | — |
| 2003 | 79° | 68° | 73° | — | — |
| 2002 | 57° | 36° | 46° | — | — |
| 2001 | 56° | 41° | 48° | — | — |
| 2000 | 60° | 54° | 57° | — | — |
| 1999 | 69° | 48° | 59° | — | — |
| 1998 | 72° | 53° | 62° | — | — |
| 1997 | 65° | 49° | 57° | — | — |
| 1996 | 59° | 47° | 53° | — | — |
31 years of data from SIMI VALLEY CALIFORNIA