Williston weather in May 2025

Expect daytime maximum temperatures of 68°F in Williston, North Dakota in May based on long-term weather averages. There are 10 hours of sunshine per day on average with 10 days with some rainfall and typically 1.9 inches of rainfall in the month.

  • 68°F maximum daytime temperature in May in Williston68
    68°F max day temperature
  • 10 hours of sunshine per day
  • 10 days with some rainfall in May in Williston10
    10 days with some rainfall
  • 43°F minimum night-time temperature in May in Williston43
    43°F min night temperature
  • 15 hours of daylight per day in May in Williston15
    15 hours of daylight per day
  • No heat & humidity in May in Williston0
    No heat & humidity
  • 1.9 inches monthly rainfall in May in Williston1.9
    1.9 inches of monthly rainfall
  • UV (maximum) index 6 (High) in May in Williston6
    6 (High) UV index

More about Williston

Williston by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for North Dakota

Radisson Hotels: up to 25% off prepaid rates

  • Save up to 25% on hotel stays when you book advance
  • Radisson Rewards members get extra 10% off hotels
  • Book hotels in Europe, Middle East, Africa, Asia & Pacific
Show discount codeShow discount code ******AID
Redeem Radisson Hotels discount code >>

View all Radisson Hotels offers

The May weather guide for North Dakota (Williston) 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)

Back to top

More about the USA

How hot is it in Williston in May?

Daytime temperatures usually reach 68°F in Williston in May, falling to 43°F at night.

How sunny is it in Williston in May?

There are normally 10 hours of bright sunshine each day in Williston in May - that's 62% of daylight hours.

Does it rain in Williston in May?

There are usually 10 days with some rain in Williston in May and the average monthly rainfall is 1.9 inches.

Williston May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:35 20:09
Friday, 16th May 2025 05:13 20:29
Saturday, 31st May 2025 04:59 20:46

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^