Mammoth Lakes
December
Weather in Mammoth Lakes for December 2025
Your guide to Mammoth Lakes weather in December - trends and predictions
Mammoth Lakes typically experiences moderate snowfall in December, with an average of 7 snowy days.
In general, the average temperature in Mammoth Lakes at the beginning of December is 4.3 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 0.9 °F by the end of December.
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Snow Forecast ❄️
Temperatures
More
24
Dry days
0
Rainy days
7
Snow days
2°/-6°
Temperatures
12 km/h
Avg max wind
62 %
Avg humidity
Mammoth Lakes Weather December
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  6° | 2  6° | 3 4° | 4 4° | 5 4° | 6 4° | |
| 7  2° | 8 3° | 9 0° | 10 3° | 11 9° | 12  -3° | 13 2° |
| 14  -1° | 15  1° | 16 1° | 17 4° | 18 4° | 19 4° | 20 1° |
| 21 2° | 22 1° | 23 2° | 24  -1° | 25  1° | 26 1° | 27 2° |
| 28 1° | 29 0° | 30 0° | 31 1° |
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Access Mammoth Lakes weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during December in Mammoth Lakes
See the weather trend as well as the moving average line
December weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 | Cloudy | 6° /-2° | 0 mm | 0 cm | |
| Dec. 2 | Sunny | 6° /-4° | 0 mm | 0 cm | |
| Dec. 3 | Cloudy | 4° /-3° | 0 mm | 0 cm | |
| Dec. 4 | Sunny | 4° /-4° | 0 mm | 0 cm | |
| Dec. 5 | Cloudy | 4° /-3° | 0 mm | 0 cm | |
| Dec. 6 | Sunny | 4° /-5° | 0 mm | 0 cm | |
| Dec. 7 | Overcast | 2° /-6° | 0 mm | 0 cm | |
| Dec. 8 | Cloudy | 3° /-2° | 0 mm | 0 cm | |
| Dec. 9 | Sunny | 0° /-7° | 0 mm | 0 cm | |
| Dec. 10 | Sunny | 3° /-7° | 0 mm | 0 cm | |
| Dec. 11 | Cloudy | 9° /-2° | 0 mm | 0 cm | |
| Dec. 12 | Moderate snow | -3° /-10° | 5.5 mm | 4 cm | |
| Dec. 13 | Cloudy | 2° /-13° | 0 mm | 0 cm | |
| Dec. 14 | Blizzard | -1° /-13° | 72.5 mm | 2.5 cm | |
| Dec. 15 | Partly cloudy | 1° /-13° | 1.8 mm | 1.3 cm | |
| Dec. 16 | Cloudy | 1° /-5° | 0 mm | 0 cm | |
| Dec. 17 | Partly cloudy | 4° /-5° | 2.8 mm | 2 cm | |
| Dec. 18 | Overcast | 4° /-3° | 0 mm | 0 cm | |
| Dec. 19 | Cloudy | 4° /-1° | 0 mm | 0 cm | |
| Dec. 20 | Partly cloudy | 1° /-1° | 0 mm | 0 cm | |
| Dec. 21 | Sunny | 2° /-4° | 0 mm | 0 cm | |
| Dec. 22 | Moderate snow | 1° /-3° | 4.6 mm | 3.3 cm | |
| Dec. 23 | Overcast | 2° /-2° | 0 mm | 0 cm | |
| Dec. 24 | Moderate or heavy snow showers | -1° /-11° | 32.6 mm | 23.5 cm | |
| Dec. 25 | Mist | 1° /-10° | 0 mm | 0 cm | |
| Dec. 26 | Overcast | 1° /-3° | 0 mm | 0 cm | |
| Dec. 27 | Moderate snow | 2° /-3° | 5.6 mm | 4 cm | |
| Dec. 28 | Overcast | 1° /-3° | 0 mm | 0 cm | |
| Dec. 29 | Partly cloudy | 0° /-6° | 0 mm | 0 cm | |
| Dec. 30 | Overcast | 0° /-9° | 0 mm | 0 cm | |
| Dec. 31 | Cloudy | 1° /-10° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for Mammoth Lakes 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 Mammoth Lakes forecast closer to your planned date for the most up-to-date weather information.
Mammoth Lakes in December - FAQ
What are the expected maximum and minimum temperatures in Mammoth Lakes 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 Mammoth Lakes during December?
Significant rainfall exceeding 125.3 mm is expected in Mammoth Lakes during December, occurring over more than 0 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Mammoth Lakes in December 2025?
Mammoth Lakes experiences an average snowfall of 40.6 cm during December, occurring over 7 days.
What are the typical wind conditions in Mammoth Lakes during December?
The average wind speed in Mammoth Lakes during December is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
Mammoth Lakes snow forecast December 2025
Track daily snowfall levels and discover Mammoth Lakes’s snowy potential this December ❄️
December rainfall patterns in Mammoth Lakes
Explore the daily rainfall trends and prepare for Mammoth Lakess December weather 💧
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Where is Mammoth Lakes?Get accurate weather forecasts for Mammoth Lakes, located at latitude 37.649 and longitude -118.972. Stay updated with localized weather information tailored for Mammoth Lakes.
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