Dubuque weather in May 2025

Expect 21°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Dubuque in May. Check more long-term weather averages for Dubuque in May before you book your next holiday to Iowa in 2025/2026.

  • 21°C maximum daytime temperature in May in Dubuque21
    21°C max day temperature
  • 10 hours of sunshine per day
  • 11 days with some rainfall in May in Dubuque11
    11 days with some rainfall
  • 9°C minimum night-time temperature in May in Dubuque9
    9°C min night temperature
  • 15 hours of daylight per day in May in Dubuque15
    15 hours of daylight per day
  • No heat & humidity in May in Dubuque0
    No heat & humidity
  • 99 mm monthly rainfall in May in Dubuque99
    99 mm of monthly rainfall
  • UV (maximum) index 7 (High) in May in Dubuque7
    7 (High) UV index

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The May weather guide for Iowa (Dubuque) 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 hot is it in Dubuque in May?

Daytime temperatures usually reach 21°C in Dubuque in May, falling to 9°C at night.

How sunny is it in Dubuque in May?

There are normally 10 hours of bright sunshine each day in Dubuque in May - that's 68% of daylight hours.

Does it rain in Dubuque in May?

There are usually 11 days with some rain in Dubuque in May and the average monthly rainfall is 99mm.

Dubuque May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 04:57 19:03
Friday, 16th May 2025 04:40 19:19
Saturday, 31st May 2025 04:28 19:33

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