Simi Valley December Weather Averages

California, United States of America

December Weather Averages for Simi Valley

High Temp17°C62°F
Low Temp7°C45°F
Avg Temp12°C53°F
Sunshine Hours278 hours 
Rainfall88.35 mm3.48 In
Rain days3 days 
Pressure1019 mb31 In

 

Simi Valley December Averages Year by Year

YearHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
200914°C / 57°F6°C / 42°F9°C / 49°F261 hours67.63 mm / 2.66 In3 days1018 mb / 31 In
201015°C / 59°F6°C / 44°F10°C / 50°F242 hours235.16 mm / 9.26 In7 days1017 mb / 31 In
201115°C / 59°F5°C / 42°F10°C / 50°F351 hours9.70 mm / 0.38 In1 days1020 mb / 31 In
201214°C / 57°F6°C / 43°F10°C / 50°F269 hours33.90 mm / 1.33 In5 days1018 mb / 31 In
201318°C / 64°F7°C / 45°F12°C / 53°F342 hours5.30 mm / 0.21 In1 days1019 mb / 31 In
201416°C / 60°F8°C / 47°F11°C / 53°F253 hours102.60 mm / 4.04 In5 days1018 mb / 31 In
201516°C / 61°F7°C / 44°F11°C / 51°F316 hours15.00 mm / 0.59 In2 days1019 mb / 31 In
201615°C / 60°F8°C / 46°F11°C / 52°F287 hours73.77 mm / 2.90 In5 days1019 mb / 31 In
201720°C / 68°F10°C / 50°F14°C / 58°F346 hours0.00 mm / 0.00 In0 days1020 mb / 31 In
201816°C / 62°F9°C / 47°F12°C / 54°F306 hours51.84 mm / 2.04 In3 days1019 mb / 31 In
201914°C / 57°F7°C / 45°F11°C / 51°F239 hours149.17 mm / 5.87 In5 days1018 mb / 31 In
202019°C / 65°F8°C / 46°F12°C / 54°F324 hours27.27 mm / 1.07 In1 days1020 mb / 31 In
202116°C / 60°F7°C / 44°F11°C / 51°F223 hours192.80 mm / 7.59 In7 days1016 mb / 30 In
202215°C / 60°F7°C / 45°F11°C / 51°F165 hours77.00 mm / 3.03 In5 days1018 mb / 31 In
202319°C / 66°F9°C / 48°F13°C / 55°F249 hours87.36 mm / 3.44 In3 days1018 mb / 31 In
202420°C / 68°F8°C / 46°F13°C / 56°F285 hours0.00 mm / 0.00 In0 days1020 mb / 31 In
202520°C / 69°F10°C / 49°F14°C / 58°F267 hours373.50 mm / 14.70 In4 days1018 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.

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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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