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Longmont
Weather averages
ClimateForecastMayJune >>

Climate in Longmont (Colorado), United States of America

The graphs below show the monthly weather averages over the year.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Monthly hours of sunshine

The average monthly total hours of sunshine over the year
* Data from: Denver, the United States of America (50 KM, 31 Miles).

Daily percent of sunshine

The mean percent of hours of sunhours during the day over the year
* Data from: Denver, the United States of America (50 KM, 31 Miles).

Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc.

Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Average humidity

The mean monthly relative humidity over the year
* Data from: Denver, the United States of America (50 KM, 31 Miles).

Forecast for Longmont (CO)

Fri   May 17
29°C | 9°C
N 22 km/h
almost clear and no rain

almost clear and no rain

hourly forecast
Sat   May 18
26°C | 10°C
S 18 km/h
1 mm
partly cloudy and thunder

partly cloudy and thunder

hourly forecast
Sun   May 19
28°C | 10°C
W 22 km/h
partly cloudy and no rain

partly cloudy and no rain

hourly forecast
5-Day Forecast 10-Day Forecast

The best time of year to visit Longmont in the United States of America

Other facts from our historical weather data:

  • When is summer in Longmont?
    The hottest season / summer takes place in June, July, August and September.
  • Does Longmont have a dry season?
    Yes, the months of January, February and November are very dry.
  • Which is the warmest month in Longmont?
    July has an average maximum temperature of 32°C and is the warmest month of the year.
  • Which is the coldest month in Longmont?
    The coldest month is December with an average maximum temperature of 6°C.
  • Which is the wettest month in Longmont?
    May tops the wettest month list with 62 mm of rainfall.
  • Which is the driest month in Longmont?
    January is the driest month with 10 mm of precipitation.
  • Which is the sunniest month in Longmont?
    July is the sunniest month with an average of 323 hours of sunshine.

    • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

     

     

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