North Dakota weather in May 2025

Expect 20°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in North Dakota in May based on long-term weather averages. There is usually 10 days with some rainfall and 55 mm of average monthly rainfall in May.

  • 20°C maximum daytime temperature in May in North Dakota (Bismarck)20
    20°C max day temperature
  • 10 hours of sunshine per day
  • 10 days with some rainfall in May in North Dakota (Bismarck)10
    10 days with some rainfall
  • 6°C minimum night-time temperature in May in North Dakota (Bismarck)6
    6°C min night temperature
  • 15 hours of daylight per day in May in North Dakota (Bismarck)15
    15 hours of daylight per day
  • No heat & humidity in May in North Dakota (Bismarck)0
    No heat & humidity
  • 55 mm monthly rainfall in May in North Dakota (Bismarck)55
    55 mm of monthly rainfall
  • UV (maximum) index 6 (High) in May in North Dakota (Bismarck)6
    6 (High) UV index

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The May weather guide for North Dakota (Bismarck) 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.

Top North Dakota destinations

Below are average maximum temperatures at popular countries, regions and places in North Dakota in May. Select a holiday destination to see more weather parameters.

All North Dakota destinations

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

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How hot is it in North Dakota in May?

Daytime temperatures usually reach 20°C in Bismarck, North Dakota in May, falling to 6°C at night.

How sunny is it in North Dakota in May?

There are normally 10 hours of bright sunshine each day in Bismarck, North Dakota in May - that's 63% of daylight hours.

Does it rain in North Dakota in May?

There are usually 10 days with some rain in Bismarck, North Dakota in May and the average monthly rainfall is 55mm.

North Dakota May sunrise & sunset times

Browse the sunrise and sunset times for North Dakota in May 2025. Select a month to view North Dakota sunrise and sunset times for the next 12 months. The North Dakota sunrise and sunset times shown below are for Bismarck.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:27 19:54
Friday, 16th May 2025 05:07 20:13
Saturday, 31st May 2025 04:53 20:29

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