Kalispell weather in December 2025

Expect -1°C daytime maximum temperatures in the shade with on average 2 hours of sunshine per day in Kalispell in December. Check more long-term weather averages for Kalispell in December before you book your next holiday to Montana in 2025/2026.

  • -1°C maximum daytime temperature in December in Kalispell-1
    -1°C max day temperature
  • 2 hours of sunshine per day
  • 15 days with some rainfall in December in Kalispell15
    15 days with some rainfall
  • -9°C minimum night-time temperature in December in Kalispell-9
    -9°C min night temperature
  • 8 hours of daylight per day in December in Kalispell8
    8 hours of daylight per day
  • No heat & humidity in December in Kalispell0
    No heat & humidity
  • 45 mm monthly rainfall in December in Kalispell45
    45 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in December in Kalispell1
    1 (Low) UV index

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The December weather guide for Montana (Kalispell) 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.

Metric (°C / mm)  |  Imperial (°F / inches)

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How cold is it in Kalispell in December?

Daytime temperatures usually reach -1°C in Kalispell in December, falling to -9°C at night.

How sunny is it in Kalispell in December?

There are normally 2 hours of bright sunshine each day in Kalispell in December - that's 23% of daylight hours.

Does it rain in Kalispell in December?

There are usually 15 days with some rain in Kalispell in December and the average monthly rainfall is 45mm. Rain may fall as snow in this month.

Kalispell December sunrise & sunset times

Browse the sunrise and sunset times for Kalispell in December 2025. Select a month to view Kalispell sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 08:07 16:45
Tuesday, 16th December 2025 08:22 16:44
Wednesday, 31st December 2025 08:28 16:53

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