Johnston August Weather Averages

Iowa, United States of America

August Weather Averages for Johnston

High Temp29°C83°F
Low Temp18°C64°F
Avg Temp23°C73°F
Sunshine Hours236 hours 
Rainfall129.34 mm5.09 In
Rain days7 days 
Pressure1014 mb30 In

 

Johnston August Averages Year by Year

YearHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
200927°C / 80°F16°C / 61°F21°C / 70°F274 hours324.58 mm / 12.78 In8 days1015 mb / 30 In
201029°C / 84°F19°C / 66°F24°C / 75°F267 hours169.90 mm / 6.69 In7 days1013 mb / 30 In
201127°C / 81°F18°C / 64°F22°C / 72°F240 hours108.81 mm / 4.28 In7 days1013 mb / 30 In
201228°C / 82°F17°C / 62°F22°C / 72°F240 hours69.34 mm / 2.73 In6 days1014 mb / 30 In
201329°C / 85°F18°C / 64°F23°C / 74°F281 hours29.92 mm / 1.18 In5 days1016 mb / 30 In
201427°C / 81°F18°C / 64°F22°C / 72°F192 hours142.41 mm / 5.61 In12 days1014 mb / 30 In
201527°C / 81°F16°C / 61°F22°C / 71°F263 hours136.69 mm / 5.38 In5 days1015 mb / 30 In
201629°C / 83°F18°C / 65°F23°C / 73°F225 hours165.54 mm / 6.52 In11 days1016 mb / 30 In
201727°C / 81°F16°C / 61°F21°C / 70°F265 hours74.88 mm / 2.95 In7 days1016 mb / 30 In
201828°C / 83°F18°C / 64°F23°C / 73°F234 hours203.44 mm / 8.01 In9 days1014 mb / 30 In
201926°C / 79°F17°C / 63°F22°C / 71°F205 hours92.47 mm / 3.64 In7 days1015 mb / 30 In
202028°C / 83°F18°C / 64°F23°C / 74°F216 hours18.10 mm / 0.71 In3 days1014 mb / 30 In
202131°C / 87°F19°C / 67°F25°C / 77°F232 hours101.28 mm / 3.99 In8 days1013 mb / 30 In
202232°C / 90°F19°C / 66°F25°C / 77°F213 hours68.53 mm / 2.70 In7 days1013 mb / 30 In
202332°C / 90°F18°C / 65°F25°C / 77°F247 hours84.05 mm / 3.31 In3 days1012 mb / 30 In
202429°C / 84°F17°C / 62°F22°C / 72°F246 hours41.17 mm / 1.62 In0 days1016 mb / 30 In
202528°C / 83°F17°C / 63°F23°C / 73°F171 hours301.80 mm / 11.88 In5 days1018 mb / 31 In
202629°C / 85°F18°C / 65°F23°C / 74°F245 hours195.27 mm / 7.69 In17 days1014 mb / 30 In

Need more than one day of Johnston history?

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Weather history near Johnston

Region

Iowa

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Johnston weather history: common questions

How far back does Johnston 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 Johnston 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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