Helena weather in March 2025

Expect 6°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Helena in March. Check more long-term weather averages for Helena in March before you book your next holiday to Montana in 2025/2026.

  • 6°C maximum daytime temperature in March in Helena6
    6°C max day temperature
  • 7 hours of sunshine per day
  • 10 days with some rainfall in March in Helena10
    10 days with some rainfall
  • -6°C minimum night-time temperature in March in Helena-6
    -6°C min night temperature
  • 12 hours of daylight per day in March in Helena12
    12 hours of daylight per day
  • No heat & humidity in March in Helena0
    No heat & humidity
  • 21 mm monthly rainfall in March in Helena21
    21 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in March in Helena3
    3 (Moderate) UV index

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The March weather guide for Montana (Helena) 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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More about the USA

How cold is it in Helena in March?

Daytime temperatures usually reach 6°C in Helena in March, falling to -6°C at night.

How sunny is it in Helena in March?

There are normally 7 hours of bright sunshine each day in Helena in March - that's 60% of daylight hours.

Does it rain in Helena in March?

There are usually 10 days with some rain in Helena in March and the average monthly rainfall is 21mm. Rain may fall as snow in this month.

Helena March sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st March 2025 07:07 18:15
Sunday, 16th March 2025 06:38 18:36
Monday, 31st March 2025 06:09 18:56

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