Grand Junction weather in September 2020

  • 27°C maximum daytime temperature in September in Grand Junction27
    27°C max day temperature
  • 10 hours of sunshine per day
  • 6 days with some rainfall in September in Grand Junction6
    6 days with some rainfall
  • 10°C minimum night-time temperature in September in Grand Junction10
    10°C min night temperature
  • 12 hours of daylight per day in September in Grand Junction12
    12 hours of daylight per day
  • Low heat & humidity in September in Grand JunctionL
    Low heat & humidity
  • 21 mm monthly rainfall in September in Grand Junction21
    21 mm of monthly rainfall
  • UV (maximum) index 7 (High) in September in Grand Junction7
    7 (High) UV index
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The September weather guide for Grand Junction, Colorado shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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How hot is it in Grand Junction in September?

Daytime temperatures usually reach 27°C in Grand Junction in September with low heat and humidity, falling to 10°C at night.

How sunny is it in Grand Junction in September?

There are normally 10 hours of bright sunshine each day in Grand Junction in September - that's 78% of daylight hours.

Does it rain in Grand Junction in September?

There are usually 6 days with some rain in Grand Junction in September and the average monthly rainfall is 21mm.

Grand Junction sunrise & sunset times for September 2020

Browse the sunrise & sunset times for Grand Junction in September 2020. Select a month to view Grand Junction sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st September 2020 06:44 19:44
Tuesday, 15th September 2020 06:56 19:22
Wednesday, 30th September 2020 07:10 18:57
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Metric (°C / mm)  |  Imperial (°F / inches)

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Where's hot in Colorado in September?

Below are average maximum temperatures at popular destinations in Colorado in September. Select a destination to see more weather parameters.

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