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Decatur weather in January 2025
Expect 1°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Decatur in January. Check more long-term weather averages for Decatur in January before you book your next holiday to Illinois in 2025/2026.
- 11°C max day temperature
- 5 hours of sunshine per day
- 1010 days with some rainfall
- -9-9°C min night temperature
- 1010 hours of daylight per day
- 0No heat & humidity
- 4949 mm of monthly rainfall
- 22 (Low) UV index
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Decatur by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Illinois
The January 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)
More about the USA
How cold is it in Decatur in January?
Daytime temperatures usually reach 1°C in Decatur in January, falling to -9°C at night.
How sunny is it in Decatur in January?
There are normally 5 hours of bright sunshine each day in Decatur in January - that's 50% of daylight hours.
Does it rain in Decatur in January?
There are usually 10 days with some rain in Decatur in January and the average monthly rainfall is 49mm. Rain may fall as snow in this month.
Decatur January sunrise & sunset times
Browse the sunrise and sunset times for Decatur in January 2025. Select a month to view Decatur sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Wednesday, 1st January 2025 | 07:17 | 16:42 |
Thursday, 16th January 2025 | 07:15 | 16:57 |
Friday, 31st January 2025 | 07:04 | 17:15 |
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