Grand Teton National Park (WY)
December
Weather in Grand Teton National Park, Wyoming for December 2025
Your guide to Grand Teton National Park weather in December - trends and predictions
Winter Weather Advisory - See hour by hour.
The climate of Grand Teton National Park in December is quite snowy, averaging 12 snowy days.
According to Grand Teton National Park snow forecast for December 2025, 12 snowy days are expected in the next 2 weeks. The closest date with snow is Tuesday, December 2.The forecast for the next days in Grand Teton National Park predicts temperatures to be around -5 °F, close to the historical average.
In general, the average temperature in Grand Teton National Park at the beginning of December is -3.4 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of -2 °F by the end of December.
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Temperatures
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13
Dry days
6
Rainy days
12
Snow days
-1°/-9°
Temperatures
8 km/h
Avg max wind
89 %
Avg humidity
Grand Teton National Park Weather December
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Temperatures trend during December in Grand Teton National Park
See the weather trend as well as the moving average line
December weather in Grand Teton National Park day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 |  Partly cloudy | -4° /-15° | 0 mm | 0 cm | |
| Dec. 2 |  Moderate snow | -3° /-10° | 9.9 mm | 7.2 cm | |
| Dec. 3 | Partly cloudy | -4° /-18° | 0 mm | 0 cm | |
| Dec. 4 |  Light freezing rain | -4° /-20° | 1.1 mm | 0.7 cm | |
| Dec. 5 |  Heavy snow | -2° /-15° | 5.7 mm | 4.1 cm | |
| Dec. 6 |  Moderate or heavy snow showers | -4° /-13° | 1.7 mm | 1.2 cm | |
| Dec. 7 | Heavy snow | -3° /-13° | 6.8 mm | 4.9 cm | |
| Dec. 8 |  Patchy moderate snow | -1° /-11° | 3.5 mm | 2.6 cm | |
| Dec. 9 | Moderate or heavy snow showers | -3° /-13° | 5.4 mm | 3.9 cm | |
| Dec. 10 | Moderate snow | -8° /-17° | 0.9 mm | 0.6 cm | |
| Dec. 11 |  Blizzard | -8° /-18° | 3.3 mm | 1.7 cm | |
| Dec. 12 | Heavy snow | -9° /-22° | 3.4 mm | 2.4 cm | |
| Dec. 13 | Moderate or heavy snow showers | -6° /-19° | 5.4 mm | 3.9 cm | |
| Dec. 14 |  Light snow | -7° /-20° | 0.3 mm | 0.2 cm | |
| Dec. 15 | Moderate snow | -3° /-8° | 8.3 mm | 3.8 cm | |
| Dec. 16 | Patchy moderate snow | -4° /-11° | 11.2 mm | 7 cm | |
| Dec. 17 | Moderate snow | -1° /-6° | 14.4 mm | 9.5 cm | |
| Dec. 18 | Light freezing rain | 1° /-6° | 0.7 mm | 0 cm | |
| Dec. 19 |  Overcast | 0° /-12° | 0 mm | 0 cm | |
| Dec. 20 | Partly cloudy | 3° /-13° | 0 mm | 0 cm | |
| Dec. 21 |  Cloudy | 3° /-11° | 0.5 mm | 0 cm | |
| Dec. 22 | Light freezing rain | 1° /-4° | 0.7 mm | 0 cm | |
| Dec. 23 | Moderate snow | 0° /-2° | 7.2 mm | 3.8 cm | |
| Dec. 24 | Overcast | 0° /-5° | 1.4 mm | 0.8 cm | |
| Dec. 25 | Light freezing rain | 0° /-5° | 1.5 mm | 0 cm | |
| Dec. 26 | Moderate snow | -2° /-8° | 8.2 mm | 3.8 cm | |
| Dec. 27 | Light freezing rain | -3° /-6° | 3.6 mm | 0 cm | |
| Dec. 28 | Moderate or heavy snow showers | 0° /-4° | 24.2 mm | 15.7 cm | |
| Dec. 29 | Moderate or heavy snow showers | 2° /-4° | 23 mm | 15.7 cm | |
| Dec. 30 | Light freezing rain | -3° /-10° | 7.4 mm | 4.3 cm | |
| Dec. 31 |  Freezing fog | -8° /-16° | 0 mm | 0 cm | |
| Next | |||||
Important Notice
Our weather forecast for Grand Teton National Park 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 Grand Teton National Park forecast closer to your planned date for the most up-to-date weather information.
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Grand Teton National Park in December - FAQ
What are the expected maximum and minimum temperatures in Grand Teton National Park during December?
Brace for cold days with temperatures not exceeding -1° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Grand Teton National Park during December?
Significant rainfall exceeding 133.6 mm is expected in Grand Teton National Park during December, occurring over more than 6 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Grand Teton National Park in December 2025?
Grand Teton National Park experiences an average snowfall of 76 cm during December, occurring over 12 days.
What are the typical wind conditions in Grand Teton National Park during December?
The average wind speed in Grand Teton National Park during December is 8 km/h, suggesting breezy to windy conditions, depending on your activities.
Grand Teton National Park snow forecast December 2025
Track daily snowfall levels and discover Grand Teton National Park’s snowy potential this December ❄️
On average, Grand Teton National Park sees 12 snowy days during December, with approximately 76 cm of total snowfall.
December rainfall patterns in Grand Teton National Park
Explore the daily rainfall trends and prepare for Grand Teton National Parks December weather 💧
Typically, Grand Teton National Park has 6 rainy days in December with a total of 133.6 mm of rainfall.
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Where is Grand Teton National Park?Get accurate weather forecasts for Grand Teton National Park, located at latitude 43.79 and longitude -110.682. Stay updated with localized weather information tailored for Grand Teton National Park.
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