Summit August Weather Averages

Illinois, United States of America

August Weather Averages for Summit

High Temp27°C81°F
Low Temp19°C67°F
Avg Temp23°C73°F
Sunshine Hours242 hours 
Rainfall122.93 mm4.84 In
Rain days9 days 
Pressure1015 mb30 In

 

Summit August Averages Year by Year

YearHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
200925°C / 76°F18°C / 64°F21°C / 70°F218 hours145.10 mm / 5.71 In12 days1016 mb / 30 In
201028°C / 83°F20°C / 68°F24°C / 75°F310 hours66.40 mm / 2.61 In5 days1014 mb / 30 In
201127°C / 80°F19°C / 66°F23°C / 73°F300 hours121.37 mm / 4.78 In5 days1013 mb / 30 In
201227°C / 80°F18°C / 65°F22°C / 72°F268 hours125.91 mm / 4.96 In8 days1015 mb / 30 In
201326°C / 79°F18°C / 65°F22°C / 72°F285 hours56.89 mm / 2.24 In6 days1017 mb / 30 In
201425°C / 78°F18°C / 64°F21°C / 71°F234 hours115.22 mm / 4.54 In9 days1015 mb / 30 In
201526°C / 78°F18°C / 64°F22°C / 71°F265 hours61.29 mm / 2.41 In6 days1015 mb / 30 In
201627°C / 80°F20°C / 68°F23°C / 74°F224 hours154.23 mm / 6.07 In9 days1016 mb / 30 In
201726°C / 78°F19°C / 66°F22°C / 72°F254 hours82.13 mm / 3.23 In8 days1016 mb / 30 In
201828°C / 82°F21°C / 70°F24°C / 75°F250 hours144.18 mm / 5.68 In14 days1015 mb / 30 In
201926°C / 79°F20°C / 68°F23°C / 73°F248 hours106.52 mm / 4.19 In12 days1015 mb / 30 In
202028°C / 83°F21°C / 70°F25°C / 76°F234 hours29.10 mm / 1.15 In5 days1015 mb / 30 In
202129°C / 84°F21°C / 70°F25°C / 77°F199 hours80.60 mm / 3.17 In10 days1016 mb / 30 In
202228°C / 83°F19°C / 67°F24°C / 75°F222 hours92.34 mm / 3.64 In8 days1015 mb / 30 In
202329°C / 83°F19°C / 65°F23°C / 74°F216 hours73.75 mm / 2.90 In7 days1013 mb / 30 In
202428°C / 82°F19°C / 67°F23°C / 74°F228 hours87.13 mm / 3.43 In5 days1016 mb / 30 In
202528°C / 82°F20°C / 68°F23°C / 74°F176 hours217.00 mm / 8.54 In6 days1018 mb / 31 In
202628°C / 83°F19°C / 66°F23°C / 73°F225 hours453.51 mm / 17.85 In19 days1015 mb / 30 In

Need more than one day of Summit history?

Download historical weather for Summit, 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.
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Buy historical weather data Or use the History API

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Summit weather history: common questions

How far back does Summit 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 Summit 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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