Simi Valley Weather History

California, United States of America

Weather on a past date in Simi Valley

Any date from 1 January 2009 to yesterday.

Sat 17 Oct, 2026 Weather in Simi Valley

Sunrise: 07:02 AM
Sunset: 06:18 PM		Moonrise: 01:56 PM
Moonset: 11:50 PM		Max:
31.0 °c		Min:
19.6 °c		Avg:
25.2 °c		Precip:
0.00 mm		Max Wind:
27.7 kph
 
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IconClearOvercastClearOvercastOvercastPartly cloudyCloudyClear
Temp24.4°c22.7°c21.9°c25.3°c30.6°c31.0°c27.4°c21.5°c
Wind14.0 kmph13.0 kmph12.6 kmph18.0 kmph19.8 kmph14.5 kmph6.0 kmph7.9 kmph
Precip0.00 mm0.00 mm0.00 mm0.00 mm0.00 mm0.00 mm0.00 mm0.00 mm
Cloud0%92%7%100%100%34%83%21%
Humidity24%26%28%21%14%14%18%46%
Pressure1017 mb1016 mb1016 mb1017 mb1016 mb1014 mb1014 mb1016 mb

Simi Valley Annual Weather Averages

MonthHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
January17°C / 62°F8°C / 46°F12°C / 53°F279 hours76.36 mm / 3.01 In4 days1019 mb / 31 In
February17°C / 63°F8°C / 46°F12°C / 54°F251 hours85.57 mm / 3.37 In3 days1018 mb / 31 In
March18°C / 65°F9°C / 48°F13°C / 56°F273 hours67.22 mm / 2.65 In3 days1017 mb / 31 In
April21°C / 69°F11°C / 51°F15°C / 60°F300 hours16.92 mm / 0.67 In1 days1015 mb / 30 In
May22°C / 72°F13°C / 55°F17°C / 63°F324 hours5.36 mm / 0.21 In1 days1013 mb / 30 In
June25°C / 77°F16°C / 61°F20°C / 69°F340 hours0.61 mm / 0.02 In0 days1012 mb / 30 In
July28°C / 83°F19°C / 66°F23°C / 74°F360 hours3.15 mm / 0.12 In0 days1013 mb / 30 In
August29°C / 84°F19°C / 67°F24°C / 75°F360 hours5.88 mm / 0.23 In0 days1012 mb / 30 In
September28°C / 82°F18°C / 64°F23°C / 73°F332 hours4.66 mm / 0.18 In1 days1012 mb / 30 In
October24°C / 76°F14°C / 57°F19°C / 66°F318 hours13.72 mm / 0.54 In1 days1014 mb / 30 In
November20°C / 69°F10°C / 50°F15°C / 58°F298 hours29.76 mm / 1.17 In2 days1017 mb / 31 In
December17°C / 62°F7°C / 45°F12°C / 53°F278 hours88.35 mm / 3.48 In3 days1019 mb / 31 In

Need more than one day of Simi Valley history?

Download historical weather for Simi Valley, or any other location, in CSV from January 2009 onwards. Ideal for research, insurance, energy, agriculture and machine-learning projects.

  • Historical weatherDaily and hourly interval data.
  • Yearly monthly averagesMonthly averages for every year since 2009.
  • Monthly climate averagesLong-term climate normals by month.
  • CSV formatReady for Excel, Python, R or your database.
Buy historical weather data Or use the History API

Weather history near Simi Valley

Region

California

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Simi Valley weather history: common questions

How far back does Simi Valley weather history go?

Hourly historical weather is available from 1 January 2009. Choose a date above, or pick a month at the top of the page for long-term averages.

Can I download Simi Valley historical weather as a file?

Yes. Buy historical weather data as daily or hourly CSV, yearly monthly averages or monthly climate averages. A free sample download is available.

Is there an API for historical weather?

Yes. The WeatherAPI.com History API returns hourly weather for any past date from 2010, as JSON or XML. Get a free API key.

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