Freeport September Weather Averages

Illinois, United States of America

September Weather Averages for Freeport

High Temp24°C75°F
Low Temp13°C55°F
Avg Temp18°C64°F
Sunshine Hours219 hours 
Rainfall99.11 mm3.90 In
Rain days6 days 
Pressure1017 mb31 In

 

Freeport September Averages Year by Year

YearHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
200922°C / 72°F12°C / 53°F17°C / 62°F230 hours35.98 mm / 1.42 In4 days1019 mb / 31 In
201022°C / 72°F12°C / 54°F17°C / 62°F199 hours99.04 mm / 3.90 In10 days1014 mb / 30 In
201119°C / 67°F11°C / 51°F15°C / 59°F208 hours78.87 mm / 3.10 In4 days1016 mb / 30 In
201222°C / 71°F10°C / 51°F16°C / 60°F254 hours50.36 mm / 1.98 In6 days1016 mb / 30 In
201324°C / 75°F13°C / 55°F18°C / 64°F244 hours46.56 mm / 1.83 In7 days1015 mb / 30 In
201422°C / 72°F11°C / 51°F16°C / 61°F260 hours98.58 mm / 3.88 In6 days1018 mb / 31 In
201525°C / 77°F15°C / 59°F19°C / 67°F201 hours64.26 mm / 2.53 In5 days1017 mb / 31 In
201624°C / 75°F15°C / 59°F19°C / 67°F207 hours105.43 mm / 4.15 In7 days1017 mb / 31 In
201725°C / 76°F13°C / 55°F19°C / 65°F309 hours26.26 mm / 1.03 In1 days1017 mb / 31 In
201823°C / 73°F13°C / 56°F18°C / 64°F190 hours190.45 mm / 7.50 In10 days1019 mb / 31 In
201923°C / 74°F15°C / 59°F19°C / 66°F171 hours237.19 mm / 9.34 In11 days1016 mb / 30 In
202021°C / 69°F12°C / 53°F16°C / 61°F196 hours138.18 mm / 5.44 In9 days1017 mb / 31 In
202128°C / 82°F14°C / 58°F21°C / 70°F267 hours26.60 mm / 1.05 In3 days1014 mb / 30 In
202224°C / 75°F13°C / 55°F18°C / 64°F246 hours129.50 mm / 5.10 In4 days1017 mb / 31 In
202328°C / 83°F12°C / 54°F19°C / 67°F195 hours117.39 mm / 4.62 In5 days1017 mb / 30 In
202425°C / 77°F12°C / 54°F18°C / 65°F280 hours53.16 mm / 2.09 In2 days1017 mb / 31 In
202525°C / 77°F12°C / 54°F18°C / 65°F159 hours88.70 mm / 3.49 In3 days1017 mb / 31 In
202624°C / 76°F15°C / 59°F19°C / 67°F122 hours197.50 mm / 7.78 In15 days1018 mb / 31 In

Need more than one day of Freeport history?

Download historical weather for Freeport, 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

Hotels near Freeport

Freeport weather history: common questions

How far back does Freeport 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 Freeport 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.

Get your free weather API key in a minute

100,000 calls a month, free for commercial use. No credit card.