Clearlake September Weather Averages

California, United States of America

September Weather Averages for Clearlake

High Temp30°C86°F
Low Temp15°C59°F
Avg Temp22°C72°F
Sunshine Hours323 hours 
Rainfall9.26 mm0.36 In
Rain days1 days 
Pressure1013 mb30 In

 

Clearlake September Averages Year by Year

YearHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
200932°C / 89°F16°C / 61°F23°C / 74°F323 hours7.20 mm / 0.28 In1 days1014 mb / 30 In
201030°C / 86°F14°C / 57°F21°C / 70°F332 hours4.10 mm / 0.16 In0 days1013 mb / 30 In
201131°C / 88°F16°C / 61°F23°C / 74°F347 hours3.60 mm / 0.14 In1 days1014 mb / 30 In
201231°C / 88°F15°C / 59°F22°C / 72°F353 hours0.00 mm / 0.00 In0 days1015 mb / 30 In
201327°C / 81°F13°C / 56°F20°C / 68°F327 hours21.20 mm / 0.83 In1 days1013 mb / 30 In
201429°C / 85°F15°C / 59°F21°C / 71°F331 hours8.20 mm / 0.32 In1 days1012 mb / 30 In
201530°C / 86°F16°C / 60°F22°C / 72°F314 hours7.70 mm / 0.30 In1 days1012 mb / 30 In
201630°C / 86°F15°C / 58°F22°C / 71°F356 hours0.00 mm / 0.00 In0 days1014 mb / 30 In
201730°C / 86°F16°C / 61°F23°C / 73°F319 hours3.00 mm / 0.12 In0 days1013 mb / 30 In
201831°C / 87°F15°C / 59°F22°C / 72°F338 hours1.70 mm / 0.07 In1 days1013 mb / 30 In
201929°C / 84°F14°C / 57°F21°C / 69°F338 hours2.90 mm / 0.11 In0 days1013 mb / 30 In
202033°C / 92°F17°C / 63°F25°C / 78°F360 hours0.00 mm / 0.00 In0 days1014 mb / 30 In
202133°C / 92°F15°C / 60°F24°C / 75°F348 hours1.70 mm / 0.07 In0 days1013 mb / 30 In
202232°C / 90°F16°C / 61°F23°C / 74°F298 hours47.20 mm / 1.86 In2 days1011 mb / 30 In
202328°C / 82°F11°C / 52°F19°C / 66°F304 hours8.48 mm / 0.33 In0 days1013 mb / 30 In
202431°C / 88°F16°C / 61°F23°C / 73°F322 hours0.05 mm / 0.00 In0 days1011 mb / 30 In
202528°C / 83°F17°C / 62°F22°C / 72°F259 hours41.70 mm / 1.64 In1 days1012 mb / 30 In
202627°C / 81°F14°C / 58°F20°C / 68°F249 hours7.90 mm / 0.31 In2 days1013 mb / 30 In

Need more than one day of Clearlake history?

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

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Clearlake weather history: common questions

How far back does Clearlake 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 Clearlake 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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