Boulder May Weather Averages

Colorado, United States of America

May Weather Averages for Boulder

High Temp17°C63°F
Low Temp5°C42°F
Avg Temp11°C52°F
Sunshine Hours224 hours 
Rainfall120.87 mm4.76 In
Rain days11 days 
Pressure1013 mb30 In

 

Boulder May Averages Year by Year

YearHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
200919°C / 66°F7°C / 44°F13°C / 55°F254 hours57.68 mm / 2.27 In10 days1014 mb / 30 In
201015°C / 60°F3°C / 37°F9°C / 49°F285 hours75.49 mm / 2.97 In9 days1011 mb / 30 In
201115°C / 59°F3°C / 38°F9°C / 48°F232 hours127.82 mm / 5.03 In9 days1011 mb / 30 In
201220°C / 68°F7°C / 45°F13°C / 56°F296 hours46.97 mm / 1.85 In7 days1012 mb / 30 In
201317°C / 63°F5°C / 41°F11°C / 52°F272 hours56.96 mm / 2.24 In7 days1014 mb / 30 In
201417°C / 63°F5°C / 41°F11°C / 52°F259 hours106.67 mm / 4.20 In14 days1014 mb / 30 In
201513°C / 55°F4°C / 40°F9°C / 48°F153 hours225.23 mm / 8.87 In18 days1014 mb / 30 In
201615°C / 58°F3°C / 38°F9°C / 49°F193 hours132.06 mm / 5.20 In15 days1014 mb / 30 In
201716°C / 60°F5°C / 40°F10°C / 50°F232 hours147.14 mm / 5.79 In13 days1013 mb / 30 In
201819°C / 65°F8°C / 46°F13°C / 56°F234 hours115.00 mm / 4.53 In11 days1013 mb / 30 In
201913°C / 55°F3°C / 37°F8°C / 46°F200 hours131.35 mm / 5.17 In11 days1011 mb / 30 In
202020°C / 68°F7°C / 45°F14°C / 57°F227 hours85.22 mm / 3.35 In10 days1014 mb / 30 In
202116°C / 61°F5°C / 42°F11°C / 52°F157 hours155.26 mm / 6.11 In15 days1013 mb / 30 In
202219°C / 67°F6°C / 42°F12°C / 54°F205 hours87.84 mm / 3.46 In9 days1009 mb / 30 In
202319°C / 66°F8°C / 46°F13°C / 56°F176 hours177.90 mm / 7.00 In12 days1013 mb / 30 In
202418°C / 64°F7°C / 44°F12°C / 53°F195 hours57.70 mm / 2.27 In7 days1009 mb / 30 In
202519°C / 65°F7°C / 44°F13°C / 55°F198 hours312.22 mm / 12.29 In7 days1013 mb / 30 In
202620°C / 68°F5°C / 42°F13°C / 55°F268 hours77.15 mm / 3.04 In14 days1012 mb / 30 In

Need more than one day of Boulder history?

Download historical weather for Boulder, 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.
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Weather history near Boulder

Region

Colorado

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Boulder weather history: common questions

How far back does Boulder 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 Boulder 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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