February is one of the cooler months of the year in Simi Valley, with average highs near 16.2°C and lows around 3.7°C (mean 10°C). It is a relatively wet time of year, averaging 88 mm of rainfall and 65% relative humidity across the period.
February is one of the cooler months of the year in Simi Valley. Across 45 years of records, the warmest February in Simi Valley was 2015 — when the month averaged 14.1°C — while the coldest was 2019 at 6.4°C. Typical February days reach 16.2°C with nights near 3.7°C. The long-term trend is warming, about 0.2°C per decade.
February is a relatively wet time of year in Simi Valley, averaging 88 mm of rainfall. The wettest February on record was 1998 with 370 mm, while the driest was 2021 at 1 mm.
Relative humidity in Simi Valley during February averages 65%. The most humid February was 1998 at 86%, and the least humid was 1991 at 50%.
February receives about 4 kWh/m²/day of solar energy in Simi Valley. The sunniest Februarys were 2016 and 2022 at 4.7 kWh/m²/day, and the cloudiest was 2005 at 3.2.
Average wind speed in Simi Valley during February is 2.5 m/s. The windiest Februarys were 1997 and 1998 at 3.1 m/s, while the calmest was 2015 at 1.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 9.8°C | 9.9°C | 9.5°C | 10.4°C | 10.5°C | +0.7°C |
| Avg High | 16.2°C | 15.8°C | 15.4°C | 17.0°C | 17.0°C | +0.8°C |
| Avg Low | 3.5°C | 3.9°C | 3.6°C | 3.8°C | 4.0°C | +0.5°C |
| Avg Rain | 64 mm | 129 mm | 101 mm | 60 mm | 83 mm | +20 mm |
February temperatures in Simi Valley have risen by about 0.3°C between 1981–1985 and 2021–2025.
February has ranged from a record low of -5.4°C (1990) to a record high of 29°C (2014).
Rainfall in February is a relatively wet time of year, averaging 88 mm, with a wettest year of 370 mm.
A quieter season to visit Simi Valley
If your dates are flexible, the more temperate months of June and September tend to be the most comfortable for visiting Simi Valley. That said, February — with days averaging 16.2°C and nights around 3.7°C (mean 10°C) and higher rainfall (88 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 18.9°C | 12.3°C | 5.8°C | 25.9°C | -0.6°C | 82 mm | 66% | 2.6 m/s | 4.1 |
| 2024 | 14.7°C | 9.8°C | 4.9°C | 20.2°C | 0.0°C | 261 mm | 78% | 2 m/s | 3.5 |
| 2023 | 13.3°C | 7.6°C | 1.9°C | 20.7°C | -2.8°C | 148 mm | 69% | 2.5 m/s | 3.9 |
| 2022 | 18.0°C | 10.6°C | 3.3°C | 26.3°C | -2.9°C | 3 mm | 54% | 2.4 m/s | 4.7 |
| 2021 | 17.9°C | 10.9°C | 3.8°C | 23.6°C | 0.6°C | 1 mm | 57% | 3 m/s | 4.6 |
| 2020 | 19.1°C | 11.8°C | 4.5°C | 25.1°C | -2.2°C | 4 mm | 58% | 2.2 m/s | 4.6 |
| 2019 ❄️ | 11.5°C | 6.4°C | 1.4°C | 18.1°C | -2.9°C | 154 mm | 80% | 2.6 m/s | 3.6 |
| 2018 | 18.2°C | 10.7°C | 3.1°C | 26.6°C | -3.8°C | 5 mm | 52% | 2.1 m/s | 4.6 |
| 2017 | 14.9°C | 10.0°C | 5.1°C | 22.6°C | -2.2°C | 144 mm | 79% | 2.1 m/s | 3.4 |
| 2016 | 21.7°C | 13.9°C | 6.0°C | 27.5°C | -2.2°C | 15 mm | 52% | 2.8 m/s | 4.7 |
| 2015 🔥 | 21.5°C | 14.1°C | 6.8°C | 26.0°C | 1.7°C | 19 mm | 58% | 1.9 m/s | 4.3 |
| 2014 | 20.1°C | 12.9°C | 5.7°C | 29.0°C | -1.5°C | 88 mm | 54% | 2.4 m/s | 4.1 |
| 2013 | 16.7°C | 9.2°C | 1.8°C | 21.6°C | -2.1°C | 8 mm | 56% | 2.2 m/s | 4.5 |
| 2012 | 16.9°C | 9.9°C | 2.8°C | 26.1°C | -0.4°C | 7 mm | 58% | 2.4 m/s | 4.2 |
| 2011 | 13.9°C | 7.6°C | 1.3°C | 22.2°C | -3.4°C | 65 mm | 67% | 2.3 m/s | 4.3 |
| 2010 | 15.0°C | 9.4°C | 3.8°C | 22.0°C | -0.6°C | 91 mm | 74% | 2.2 m/s | 3.7 |
| 2009 | 14.4°C | 8.8°C | 3.2°C | 22.1°C | -2.9°C | 112 mm | 71% | 2.4 m/s | 3.6 |
| 2008 | 16.1°C | 9.6°C | 3.0°C | 21.9°C | -1.5°C | 43 mm | 67% | 2.5 m/s | 4.1 |
| 2007 | 16.7°C | 10.2°C | 3.7°C | 24.6°C | -1.8°C | 38 mm | 64% | 2.3 m/s | 4 |
| 2006 | 17.6°C | 10.8°C | 3.9°C | 23.9°C | -3.1°C | 59 mm | 52% | 2.7 m/s | 4.3 |
| 2005 | 14.1°C | 9.8°C | 5.4°C | 17.7°C | 2.9°C | 222 mm | 79% | 2.3 m/s | 3.2 |
| 2004 | 14.0°C | 8.3°C | 2.7°C | 21.3°C | -0.9°C | 111 mm | 65% | 2.5 m/s | 3.7 |
| 2003 | 15.2°C | 9.2°C | 3.2°C | 21.8°C | -1.5°C | 134 mm | 66% | 2.5 m/s | 3.8 |
| 2002 | 18.9°C | 11.5°C | 4.1°C | 26.9°C | -1.7°C | 6 mm | 51% | 2.6 m/s | 4.6 |
| 2001 | 12.5°C | 7.3°C | 2.2°C | 25.6°C | -3.0°C | 136 mm | 77% | 2.2 m/s | 3.3 |
| 2000 | 14.9°C | 9.8°C | 4.7°C | 21.4°C | 0.4°C | 146 mm | 76% | 2.3 m/s | 3.4 |
| 1999 | 16.6°C | 9.8°C | 3.0°C | 24.4°C | -1.8°C | 19 mm | 63% | 2.8 m/s | 4.1 |
| 1998 🌧️ | 12.2°C | 7.8°C | 3.3°C | 16.9°C | 0.2°C | 370 mm | 86% | 3.1 m/s | 3.5 |
| 1997 | 15.7°C | 9.5°C | 3.3°C | 20.7°C | -0.8°C | 11 mm | 67% | 3.1 m/s | 4.2 |
| 1996 | 16.5°C | 11.0°C | 5.5°C | 27.0°C | -2.6°C | 117 mm | 75% | 2 m/s | 3.4 |
| 1995 | 18.4°C | 12.2°C | 6.1°C | 23.5°C | 0.7°C | 36 mm | 72% | 2 m/s | 4.1 |
| 1994 | 14.1°C | 8.2°C | 2.3°C | 20.7°C | -1.1°C | 113 mm | 65% | 2.7 m/s | 3.9 |
| 1993 | 12.9°C | 8.0°C | 3.0°C | 18.7°C | -1.3°C | 205 mm | 81% | 2.4 m/s | 3.3 |
| 1992 | 15.6°C | 10.5°C | 5.5°C | 22.2°C | 1.0°C | 244 mm | 74% | 2.8 m/s | 3.5 |
| 1991 | 20.7°C | 13.2°C | 5.7°C | 25.6°C | 0.7°C | 120 mm | 50% | 2.3 m/s | 4.2 |
| 1990 | 15.4°C | 8.6°C | 1.7°C | 23.6°C | -5.4°C | 57 mm | 59% | 2.6 m/s | 4.2 |
| 1989 | 14.1°C | 8.1°C | 2.1°C | 24.7°C | -5.1°C | 61 mm | 67% | 2.7 m/s | 3.7 |
| 1988 | 18.2°C | 11.2°C | 4.2°C | 23.3°C | -1.0°C | 68 mm | 57% | 2.8 m/s | 4 |
| 1987 | 15.9°C | 9.3°C | 2.7°C | 22.6°C | -2.2°C | 29 mm | 61% | 2.7 m/s | 3.8 |
| 1986 | 15.9°C | 10.4°C | 5.0°C | 27.5°C | -2.0°C | 129 mm | 74% | 2.9 m/s | 3.8 |
| 1985 | 16.3°C | 9.1°C | 1.9°C | 24.3°C | -3.8°C | 27 mm | 60% | 2.5 m/s | 4.2 |
| 1984 | 16.9°C | 10.0°C | 3.2°C | 22.6°C | 0.3°C | 3 mm | 56% | 3 m/s | 4.2 |
| 1983 | 14.6°C | 9.4°C | 4.1°C | 22.5°C | 0.1°C | 169 mm | 75% | 2.7 m/s | — |
| 1982 | 16.6°C | 10.3°C | 3.9°C | 24.6°C | -1.7°C | 19 mm | 63% | 2.5 m/s | — |
| 1981 | 17.6°C | 10.8°C | 4.0°C | 26.2°C | -1.3°C | 68 mm | 58% | 2.7 m/s | — |
Actual recorded February data for each year, 1981–2025 — sourced from NASA POWER.
The average high in February is around 16.2°C with lows near 3.7°C (mean 10°C), based on 45 years of NASA POWER data.
February averages 88 mm of rainfall in Simi Valley, a relatively wet time of year. The wettest on record was 370 mm in 1998.
The hottest February reached 29°C in 2014. The coldest dipped to -5.4°C in 1990.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average February temperatures have risen by about 0.3°C. Daytime highs moved from 16.4°C to 16.6°C and overnight lows from 3.4°C to 3.9°C over the same span.
February is one of the cooler months of the year in Simi Valley and a relatively wet time of year, so plan for around 16.2°C daytime highs and 3.7°C at night.
Not quite — February is the 3rd coolest month in Simi Valley, averaging 10°C.
For February in Simi Valley, pack warm layers and a jacket for chilly mornings, with typical highs of 16.2°C and lows of 3.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in February averages 65% — moderately humid.
Average wind speed in February is 2.5 m/s. The windiest February on record averaged 3.1 m/s (1997).
The wettest February on record was 1998 with 370 mm. On average, February sees 88 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Simi Valley behaves each February, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for February specifically, along with year-by-year records and how the month has changed over the decades.
