West Chester September Weather Averages

Pennsylvania, United States of America

September Weather Averages for West Chester

High Temp25°C77°F
Low Temp16°C61°F
Avg Temp20°C68°F
Sunshine Hours194 hours 
Rainfall130.53 mm5.14 In
Rain days7 days 
Pressure1018 mb31 In

 

West Chester September Averages Year by Year

YearHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
200922°C / 72°F14°C / 58°F18°C / 64°F172 hours113.97 mm / 4.49 In6 days1018 mb / 31 In
201026°C / 78°F16°C / 60°F21°C / 69°F248 hours160.64 mm / 6.32 In6 days1014 mb / 30 In
201124°C / 75°F16°C / 61°F20°C / 67°F139 hours189.72 mm / 7.47 In12 days1016 mb / 30 In
201224°C / 75°F15°C / 59°F19°C / 66°F223 hours119.19 mm / 4.69 In8 days1016 mb / 30 In
201324°C / 75°F13°C / 56°F18°C / 65°F290 hours45.00 mm / 1.77 In3 days1016 mb / 30 In
201424°C / 76°F15°C / 58°F19°C / 66°F208 hours49.29 mm / 1.94 In6 days1019 mb / 31 In
201526°C / 79°F16°C / 62°F21°C / 69°F166 hours89.94 mm / 3.54 In6 days1018 mb / 31 In
201627°C / 80°F17°C / 62°F21°C / 70°F227 hours115.40 mm / 4.54 In5 days1019 mb / 31 In
201725°C / 78°F17°C / 63°F21°C / 70°F219 hours41.03 mm / 1.62 In4 days1017 mb / 31 In
201825°C / 78°F19°C / 66°F22°C / 71°F117 hours257.75 mm / 10.15 In14 days1021 mb / 31 In
201926°C / 79°F18°C / 64°F22°C / 71°F250 hours31.00 mm / 1.22 In4 days1019 mb / 31 In
202024°C / 76°F16°C / 61°F20°C / 68°F206 hours100.91 mm / 3.97 In5 days1019 mb / 31 In
202125°C / 76°F16°C / 61°F20°C / 68°F214 hours107.40 mm / 4.23 In6 days1017 mb / 30 In
202225°C / 77°F15°C / 59°F20°C / 67°F224 hours106.70 mm / 4.20 In5 days1017 mb / 31 In
202325°C / 77°F15°C / 59°F20°C / 67°F192 hours196.70 mm / 7.74 In6 days1018 mb / 31 In
202423°C / 74°F16°C / 61°F19°C / 67°F142 hours270.51 mm / 10.65 In5 days1019 mb / 31 In
202525°C / 77°F17°C / 62°F20°C / 69°F132 hours207.70 mm / 8.18 In5 days1019 mb / 31 In
202625°C / 76°F16°C / 61°F20°C / 68°F128 hours146.60 mm / 5.77 In11 days1018 mb / 31 In

Need more than one day of West Chester history?

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

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West Chester weather history: common questions

How far back does West Chester 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 West Chester 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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