Wyoming (Yellowstone National Park)
December
Weather in Wyoming for December 2026
Your guide to Wyoming weather in December - trends and predictions
Wyoming is transformed into a snow paradise in December, with more than 20 snowy days on average.
In general, the average temperature in Wyoming at the beginning of December is -2 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of -3.3 °F by the end of December.
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Snow Forecast ❄️
Temperatures
More
6
Dry days
1
Rainy days
24
Snow days
-2°/-9°
Temperatures
22 km/h
Avg max wind
84 %
Avg humidity
Wyoming Weather December
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What’s the Weather Like in Wyoming This December?
Discover the average temperatures and weather trends across Wyoming’s cities this December.
Temperatures trend during December in Wyoming
See the weather trend as well as the moving average line
December weather in Wyoming day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 |  Mist | -2° /-12° | 0 mm | 0 cm | |
| Dec. 2 | Mist | -2° /-10° | 2.5 mm | 1.8 cm | |
| Dec. 3 | Mist | -2° /-12° | 0 mm | 0 cm | |
| Dec. 4 | Mist | -3° /-11° | 0 mm | 0 cm | |
| Dec. 5 | Mist | -1° /-12° | 3.9 mm | 1.1 cm | |
| Dec. 6 | Mist | -2° /-13° | 8.4 mm | 6.1 cm | |
| Dec. 7 | Mist | -2° /-12° | 3.1 mm | 2.2 cm | |
| Dec. 8 |  Moderate snow | -3° /-8° | 2.7 mm | 1.9 cm | |
| Dec. 9 |  Overcast | -4° /-8° | 7.8 mm | 1.7 cm | |
| Dec. 10 |  Cloudy | -4° /-8° | 9.7 mm | 3.4 cm | |
| Dec. 11 |  Patchy heavy snow | -2° /-8° | 2.1 mm | 1.5 cm | |
| Dec. 12 | Overcast | -2° /-7° | 5.8 mm | 4.2 cm | |
| Dec. 13 | Overcast | -2° /-10° | 0 mm | 0 cm | |
| Dec. 14 | Overcast | 0° /-8° | 4.8 mm | 3.5 cm | |
| Dec. 15 | Overcast | -2° /-11° | 0 mm | 0 cm | |
| Dec. 16 | Overcast | -3° /-8° | 1.5 mm | 0 cm | |
| Dec. 17 | Overcast | -2° /-9° | 23 mm | 4 cm | |
| Dec. 18 | Overcast | -3° /-9° | 0.9 mm | 0.6 cm | |
| Dec. 19 | Overcast | -2° /-9° | 37.7 mm | 2.2 cm | |
| Dec. 20 | Cloudy | -2° /-12° | 2.8 mm | 2 cm | |
| Dec. 21 |  Partly cloudy | 1° /-9° | 14.9 mm | 10.7 cm | |
| Dec. 22 | Overcast | -1° /-3° | 21.2 mm | 5.4 cm | |
| Dec. 23 |  Thundery outbreaks possible | 0° /-5° | 10.4 mm | 7.5 cm | |
| Dec. 24 | Overcast | 1° /-5° | 3.7 mm | 2.6 cm | |
| Dec. 25 | Mist | 0° /-4° | 14.3 mm | 10.3 cm | |
| Dec. 26 | Overcast | -2° /-7° | 12.6 mm | 4.1 cm | |
| Dec. 27 | Overcast | -5° /-12° | 10.9 mm | 4.9 cm | |
| Dec. 28 | Moderate snow | -7° /-13° | 5.1 mm | 3.7 cm | |
| Dec. 29 | Moderate snow | -2° /-12° | 2.6 mm | 1.9 cm | |
| Dec. 30 | Overcast | -2° /-12° | 4.8 mm | 3.5 cm | |
| Dec. 31 | Overcast | -5° /-12° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for Wyoming in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Wyoming forecast closer to your planned date for the most up-to-date weather information.
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Wyoming in December - FAQ
What are the expected maximum and minimum temperatures in Wyoming during December?
Brace for cold days with temperatures not exceeding -2° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Wyoming during December?
Significant rainfall exceeding 216.8 mm is expected in Wyoming during December, occurring over more than 1 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Wyoming in December 2026?
Wyoming experiences an average snowfall of 90.815 cm during December, occurring over 24 days.
What are the typical wind conditions in Wyoming during December?
The average wind speed in Wyoming during December is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
Wyoming snow forecast December 2026
Track daily snowfall levels and discover Wyoming’s snowy potential this December ❄️
On average, Wyoming sees 24 snowy days during December, with approximately 90.8 cm of total snowfall.
December rainfall patterns in Wyoming
Explore the daily rainfall trends and prepare for Wyomings December weather 💧
Typically, Wyoming has 1 rainy days in December with a total of 216.8 mm of rainfall.
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