Longmont May Weather Averages

Colorado, United States of America

May Weather Averages for Longmont

High Temp19°C67°F
Low Temp7°C44°F
Avg Temp13°C55°F
Sunshine Hours237 hours 
Rainfall113.04 mm4.45 In
Rain days10 days 
Pressure1012 mb30 In

 

Longmont May Averages Year by Year

YearHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
200920°C / 68°F8°C / 47°F14°C / 57°F266 hours58.12 mm / 2.29 In9 days1014 mb / 30 In
201017°C / 63°F4°C / 40°F11°C / 52°F292 hours87.90 mm / 3.46 In11 days1011 mb / 30 In
201117°C / 62°F5°C / 40°F11°C / 51°F250 hours132.00 mm / 5.20 In8 days1011 mb / 30 In
201222°C / 71°F8°C / 46°F15°C / 59°F306 hours37.50 mm / 1.48 In6 days1012 mb / 30 In
201319°C / 67°F6°C / 44°F13°C / 56°F301 hours49.01 mm / 1.93 In7 days1014 mb / 30 In
201419°C / 66°F7°C / 44°F13°C / 55°F263 hours98.49 mm / 3.88 In13 days1014 mb / 30 In
201516°C / 61°F6°C / 42°F11°C / 51°F155 hours196.88 mm / 7.75 In18 days1013 mb / 30 In
201617°C / 63°F5°C / 41°F11°C / 52°F208 hours134.43 mm / 5.29 In13 days1014 mb / 30 In
201718°C / 65°F6°C / 43°F12°C / 54°F234 hours152.90 mm / 6.02 In14 days1013 mb / 30 In
201821°C / 70°F9°C / 49°F15°C / 60°F239 hours128.94 mm / 5.08 In11 days1013 mb / 30 In
201915°C / 60°F4°C / 40°F10°C / 50°F200 hours138.29 mm / 5.44 In10 days1011 mb / 30 In
202022°C / 71°F8°C / 47°F15°C / 59°F250 hours77.92 mm / 3.07 In9 days1014 mb / 30 In
202118°C / 65°F7°C / 44°F12°C / 54°F168 hours151.93 mm / 5.98 In13 days1012 mb / 30 In
202221°C / 71°F6°C / 44°F14°C / 57°F211 hours91.03 mm / 3.58 In9 days1009 mb / 30 In
202321°C / 70°F8°C / 47°F15°C / 58°F209 hours180.35 mm / 7.10 In11 days1012 mb / 30 In
202420°C / 69°F8°C / 46°F13°C / 56°F231 hours45.24 mm / 1.78 In6 days1008 mb / 30 In
202520°C / 68°F6°C / 43°F13°C / 56°F209 hours185.03 mm / 7.28 In5 days1013 mb / 30 In
202621°C / 70°F6°C / 43°F13°C / 56°F281 hours88.70 mm / 3.49 In12 days1012 mb / 30 In

Need more than one day of Longmont history?

Download historical weather for Longmont, 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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  • Monthly climate averagesLong-term climate normals by month.
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Longmont weather history: common questions

How far back does Longmont 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 Longmont 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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