Casper September Weather Averages

Wyoming, United States of America

September Weather Averages for Casper

High Temp24°C76°F
Low Temp10°C50°F
Avg Temp17°C63°F
Sunshine Hours301 hours 
Rainfall22.43 mm0.88 In
Rain days2 days 
Pressure1014 mb30 In

 

Casper September Averages Year by Year

YearHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
200924°C / 76°F9°C / 49°F17°C / 62°F339 hours18.80 mm / 0.74 In4 days1016 mb / 30 In
201025°C / 77°F8°C / 47°F16°C / 61°F349 hours13.10 mm / 0.52 In1 days1013 mb / 30 In
201123°C / 74°F10°C / 50°F16°C / 62°F329 hours3.40 mm / 0.13 In1 days1017 mb / 31 In
201224°C / 75°F10°C / 50°F17°C / 63°F342 hours4.10 mm / 0.16 In0 days1016 mb / 30 In
201323°C / 74°F11°C / 53°F17°C / 63°F301 hours51.84 mm / 2.04 In4 days1012 mb / 30 In
201423°C / 73°F9°C / 48°F16°C / 61°F308 hours25.90 mm / 1.02 In2 days1014 mb / 30 In
201526°C / 78°F12°C / 54°F19°C / 66°F305 hours0.40 mm / 0.02 In0 days1013 mb / 30 In
201623°C / 73°F10°C / 49°F16°C / 61°F301 hours23.10 mm / 0.91 In5 days1015 mb / 30 In
201721°C / 71°F9°C / 49°F15°C / 60°F270 hours36.01 mm / 1.42 In4 days1014 mb / 30 In
201825°C / 77°F10°C / 50°F17°C / 63°F335 hours6.00 mm / 0.24 In0 days1013 mb / 30 In
201924°C / 76°F10°C / 50°F17°C / 63°F302 hours21.53 mm / 0.85 In4 days1012 mb / 30 In
202023°C / 74°F8°C / 47°F16°C / 61°F293 hours36.77 mm / 1.45 In3 days1017 mb / 30 In
202127°C / 80°F11°C / 52°F19°C / 66°F275 hours27.53 mm / 1.08 In3 days1013 mb / 30 In
202227°C / 80°F10°C / 51°F19°C / 66°F279 hours18.20 mm / 0.72 In3 days1014 mb / 30 In
202326°C / 78°F8°C / 47°F17°C / 63°F304 hours9.98 mm / 0.39 In0 days1013 mb / 30 In
202427°C / 80°F10°C / 50°F18°C / 65°F319 hours26.29 mm / 1.04 In2 days1013 mb / 30 In
202524°C / 76°F9°C / 49°F17°C / 62°F275 hours52.60 mm / 2.07 In1 days1016 mb / 30 In
202625°C / 77°F12°C / 53°F18°C / 64°F194 hours28.20 mm / 1.11 In5 days1013 mb / 30 In

Need more than one day of Casper history?

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Weather history near Casper

Region

Wyoming

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Casper weather history: common questions

How far back does Casper 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 Casper 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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