Decatur weather in December 2024

Expect 37°F daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Decatur in December. Check more long-term weather averages for Decatur in December before you book your next holiday to Illinois in 2024/2025.

37
37°F max day temperature
4
4 hours of sunshine per day
11
11 days with some rainfall
21
21°F min night temperature
9
9 hours of daylight per day
0
No heat & humidity
2.8
2.8 inches of monthly rainfall
2
2 (Low) UV index

More about Decatur

Decatur by month

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

Recommended for Illinois

Cosmos: 10% off 2025 escorted tours

Sale

Save 10% on escorted tours to Europe & North America
Book tours to Europe, the America, Asia, Africa & beyond
Travel between 1st Jan & 31st Dec 2025 (inclusive)

Go to Cosmos deal >>

Expires at 23:59 on Tuesday 30th Apr 2024 · View all Cosmos offers

Tour deal finder

Destination

The December 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) | Imperial (°F)

More about the USA

How cold is it in Decatur in December?

Daytime temperatures usually reach 37°F in Decatur in December, falling to 21°F at night.

How sunny is it in Decatur in December?

There are normally 4 hours of bright sunshine each day in Decatur in December - that's 43% of daylight hours.

Does it rain in Decatur in December?

There are usually 11 days with some rain in Decatur in December and the average monthly rainfall is 2.8 inches. Rain may fall as snow in this month.

Decatur December sunrise & sunset times

Browse the sunrise and sunset times for Decatur in December 2024. Select a month to view Decatur sunrise and sunset times for the next 12 months.

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

Date	Sunrise times	Sunset times
Sunday, 1st December 2024	06:59	16:31
Monday, 16th December 2024	07:11	16:32
Tuesday, 31st December 2024	07:17	16:41

Be inspired

Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers

We promise not to share your details

Popular travel offers

Illinois - quick facts
Flight time^✝	8.5 hours
Time difference	UK -6 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes
Why visit?	Culture
Tourist info	Illinois Department of Commerce & Economic Opportunity