Wyoming weather in December 2025

Q: How cold is it in Wyoming in December?

Daytime temperatures usually reach 4°C in Cheyenne, Wyoming in December, falling to -9°C at night.

Q: How sunny is it in Wyoming in December?

There are normally 6 hours of bright sunshine each day in Cheyenne, Wyoming in December - that's 62% of daylight hours.

Q: Does it rain in Wyoming in December?

There are usually 6 days with some rain in Cheyenne, Wyoming in December and the average monthly rainfall is 10mm. Rain may fall as snow in this month.

Expect daytime maximum temperatures of 39°F in Wyoming, USA in December based on long-term weather averages. There are 6 hours of sunshine per day on average, which might fall as snow.

39
39°F max day temperature
6
6 hours of sunshine per day
6
6 days with some rainfall
16
16°F min night temperature
9
9 hours of daylight per day
0
No heat & humidity
0.4
0.4 inches of monthly rainfall
1
1 (Low) UV index

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The December weather guide for Wyoming (Cheyenne) 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.

Top Wyoming destinations

Below are average maximum temperatures at popular countries, regions and places in Wyoming in December. Select a holiday destination to see more weather parameters.

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Metric (°C) | Imperial (°F)

More about the USA

How cold is it in Wyoming in December?

Daytime temperatures usually reach 39°F in Cheyenne, Wyoming in December, falling to 16°F at night.

How sunny is it in Wyoming in December?

There are normally 6 hours of bright sunshine each day in Cheyenne, Wyoming in December - that's 62% of daylight hours.

Does it rain in Wyoming in December?

There are usually 6 days with some rain in Cheyenne, Wyoming in December and the average monthly rainfall is 0.4 inches. Rain may fall as snow in this month.

Wyoming December sunrise & sunset times

Browse the sunrise and sunset times for Wyoming in December 2025. Select a month to view Wyoming sunrise and sunset times for the next 12 months. The Wyoming sunrise and sunset times shown below are for Cheyenne.

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

Date	Sunrise times	Sunset times
Monday, 1st December 2025	07:05	16:31
Tuesday, 16th December 2025	07:18	16:32
Wednesday, 31st December 2025	07:24	16:41

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Wyoming - quick facts
Flight time^✝	13 hours
Time difference	UK -7 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes
Why visit?	Nature
Tourist info	Wyoming Office of Tourism