Flagstaff weather in January 2026

Expect daytime maximum temperatures of 43°F in Flagstaff, Arizona in January based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 2.0 inches of rainfall in the month, which might fall as snow.

  • 43°F maximum daytime temperature in January in Flagstaff43
    43°F max day temperature
  • 8 hours of sunshine per day
  • 5 days with some rainfall in January in Flagstaff5
    5 days with some rainfall
  • 10°F minimum night-time temperature in January in Flagstaff10
    10°F min night temperature
  • 10 hours of daylight per day in January in Flagstaff10
    10 hours of daylight per day
  • No heat & humidity in January in Flagstaff0
    No heat & humidity
  • 2.0 inches monthly rainfall in January in Flagstaff2.0
    2.0 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in January in Flagstaff3
    3 (Moderate) UV index

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The January weather guide for Arizona (Flagstaff) 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)  |  Imperial (°F)

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More about Arizona

How cold is it in Flagstaff in January?

Daytime temperatures usually reach 43°F in Flagstaff in January, falling to 10°F at night.

How sunny is it in Flagstaff in January?

There are normally 8 hours of bright sunshine each day in Flagstaff in January - that's 74% of daylight hours.

Does it rain in Flagstaff in January?

There are usually 5 days with some rain in Flagstaff in January and the average monthly rainfall is 2.0 inches. Rain may fall as snow in this month.

Flagstaff January sunrise & sunset times

Browse the sunrise and sunset times for Flagstaff in January 2026. Select a month to view Flagstaff sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 07:35 17:26
Friday, 16th January 2026 07:34 17:39
Saturday, 31st January 2026 07:26 17:54

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