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Best time to visit Decatur
Find the best time to visit Decatur and plan your perfect trip in 2024/2025. Get holiday inspiration, weather guides, travel advice and find great deals.
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Decatur by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Illinois
When is the best time to visit Decatur?
The best time to visit Decatur is June and July based on the following average weather conditions.
Daily hours of sunshine = 10 hours or more [remove]
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Best time to visit
The weather guide for Illinois (Decatur) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
Which is the hottest month in Decatur?
The hottest time of year in Decatur is normally July. Expect maximum daytime temperatures to reach 31°C with high heat and humidity.
Which month has the most rain in Decatur?
In terms of rainfall, July is usually the wettest month in Decatur with 107mm on average. There are normally 9 days in July with some rain.
When is it sunniest in Decatur?
The sunniest time of year in Decatur is normally July with bright sunshine on average for 70% of daylight hours; that's 10 hours of sunshine per day.
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