Mono County (Mammoth Lakes)
December
Weather in Mono County for December 2025
Your guide to Mono County weather in December - trends and predictions
Mono County typically experiences moderate snowfall in December, with an average of 7 snowy days.
In general, the average temperature in Mono County 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
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24
Dry days
0
Rainy days
7
Snow days
2°/-6°
Temperatures
12 km/h
Avg max wind
62 %
Avg humidity
Mono County 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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Temperatures trend during December in Mono County
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 Mono County 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 Mono County forecast closer to your planned date for the most up-to-date weather information.
Mono County in December - FAQ
What are the expected maximum and minimum temperatures in Mono County 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 Mono County during December?
Significant rainfall exceeding 125.3 mm is expected in Mono County during December, occurring over more than 0 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Mono County in December 2025?
Mono County experiences an average snowfall of 40.6 cm during December, occurring over 7 days.
What are the typical wind conditions in Mono County during December?
The average wind speed in Mono County during December is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
Mono County snow forecast December 2025
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December rainfall patterns in Mono County
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Where is Mono County?Get accurate weather forecasts for Mono County, located at latitude 37.649 and longitude -118.972. Stay updated with localized weather information tailored for Mono County.
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