Naperville September Weather Averages

Illinois, United States of America

September Weather Averages for Naperville

High Temp24°C76°F
Low Temp15°C59°F
Avg Temp19°C67°F
Sunshine Hours224 hours 
Rainfall89.26 mm3.51 In
Rain days6 days 
Pressure1017 mb31 In

 

Naperville September Averages Year by Year

YearHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
200923°C / 74°F14°C / 57°F18°C / 65°F235 hours31.50 mm / 1.24 In4 days1018 mb / 31 In
201023°C / 74°F14°C / 57°F18°C / 64°F227 hours112.80 mm / 4.44 In9 days1015 mb / 30 In
201120°C / 68°F13°C / 55°F16°C / 61°F185 hours108.10 mm / 4.26 In10 days1015 mb / 30 In
201222°C / 72°F12°C / 54°F17°C / 63°F256 hours50.50 mm / 1.99 In6 days1016 mb / 30 In
201324°C / 76°F14°C / 58°F19°C / 66°F254 hours31.18 mm / 1.23 In3 days1016 mb / 30 In
201423°C / 73°F12°C / 54°F17°C / 63°F250 hours99.85 mm / 3.93 In6 days1018 mb / 31 In
201525°C / 77°F15°C / 60°F20°C / 68°F212 hours77.78 mm / 3.06 In6 days1018 mb / 31 In
201624°C / 76°F16°C / 61°F20°C / 68°F219 hours56.00 mm / 2.20 In7 days1017 mb / 31 In
201726°C / 78°F16°C / 61°F21°C / 69°F310 hours29.47 mm / 1.16 In3 days1017 mb / 31 In
201825°C / 76°F16°C / 62°F20°C / 69°F218 hours102.27 mm / 4.03 In11 days1019 mb / 31 In
201925°C / 77°F17°C / 63°F21°C / 70°F195 hours193.63 mm / 7.62 In13 days1016 mb / 30 In
202022°C / 72°F14°C / 57°F18°C / 64°F225 hours130.60 mm / 5.14 In6 days1018 mb / 31 In
202126°C / 79°F16°C / 61°F21°C / 69°F270 hours44.00 mm / 1.73 In4 days1015 mb / 30 In
202225°C / 76°F14°C / 58°F19°C / 66°F238 hours68.40 mm / 2.69 In7 days1017 mb / 31 In
202327°C / 80°F15°C / 58°F20°C / 68°F191 hours128.34 mm / 5.05 In5 days1017 mb / 31 In
202426°C / 79°F16°C / 60°F21°C / 69°F246 hours39.45 mm / 1.55 In1 days1017 mb / 31 In
202526°C / 78°F15°C / 59°F20°C / 68°F174 hours140.40 mm / 5.53 In3 days1017 mb / 31 In
202625°C / 76°F16°C / 61°F20°C / 68°F124 hours162.40 mm / 6.39 In12 days1018 mb / 31 In

Need more than one day of Naperville history?

Download historical weather for Naperville, 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 Naperville

Region

Illinois

See the Naperville 14-day forecast »

Hotels near Naperville

Naperville weather history: common questions

How far back does Naperville 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 Naperville 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.

Quick and Easy Signup for Weather API

WeatherAPI.com makes it super easy to integrate our realtime, daily, hourly and 15 min interval weather forecast data, historical weather, marine weather, bulk request, air quality data, pollen, evapotranspiration, autocomplete, time zone, astronomy and sports data into your new or existing project.
Get Started