Decatur weather in March 2025

Expect 11°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Decatur in March. Check more long-term weather averages for Decatur in March before you book your next holiday to Illinois in 2025/2026.

  • 11°C maximum daytime temperature in March in Decatur11
    11°C max day temperature
  • 6 hours of sunshine per day
  • 12 days with some rainfall in March in Decatur12
    12 days with some rainfall
  • -1°C minimum night-time temperature in March in Decatur-1
    -1°C min night temperature
  • 12 hours of daylight per day in March in Decatur12
    12 hours of daylight per day
  • No heat & humidity in March in Decatur0
    No heat & humidity
  • 80 mm monthly rainfall in March in Decatur80
    80 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in March in Decatur4
    4 (Moderate) UV index

More about Decatur

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The March weather guide for Illinois (Decatur) 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 warm is it in Decatur in March?

Daytime temperatures usually reach 11°C in Decatur in March, falling to -1°C at night.

How sunny is it in Decatur in March?

There are normally 6 hours of bright sunshine each day in Decatur in March - that's 51% of daylight hours.

Does it rain in Decatur in March?

There are usually 12 days with some rain in Decatur in March and the average monthly rainfall is 80mm.

Decatur March sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st March 2025 06:28 17:48
Sunday, 16th March 2025 06:05 18:04
Monday, 31st March 2025 05:41 18:19

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