Boise weather in December 2020

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  • 3°C maximum daytime temperature in December in Boise3
    3°C max day temperature
  • 3 hours of sunshine per day
  • 11 days with some rainfall in December in Boise11
    11 days with some rainfall
  • -6°C minimum night-time temperature in December in Boise-6
    -6°C min night temperature
  • 9 hours of daylight per day in December in Boise9
    9 hours of daylight per day
  • No heat & humidity in December in Boise0
    No heat & humidity
  • 36 mm monthly rainfall in December in Boise36
    36 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in December in Boise1
    1 (Low) UV index
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The December weather guide for Boise, Idaho 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 cold is it in Boise in December?

Daytime temperatures usually reach 3°C in Boise in December, falling to -6°C at night.

How sunny is it in Boise in December?

There are normally 3 hours of bright sunshine each day in Boise in December - that's 38% of daylight hours.

Does it rain in Boise in December?

There are usually 11 days with some rain in Boise in December and the average monthly rainfall is 36mm.

Boise sunrise & sunset times for December 2020

Browse the sunrise & sunset times for Boise in December 2020. Select a month to view Boise sunrise & sunset times for the next twelve months.


Date Sunrise times Sunset times
Tuesday, 1st December 2020 07:59 17:09
Wednesday, 16th December 2020 08:12 17:09
Thursday, 31st December 2020 08:18 17:18
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Metric (°C / mm)  |  Imperial (°F / inches)

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Where's warm in Idaho in December?

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

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