Weather in Mammoth Lakes: December
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Average day temperature: | 36.6°F |
| Average night temperature: | 22.9°F | |
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Number of sunny days: | 15 days |
| Day length: | 9.6 - 9.7 hours | |
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Number of days with precipitation: | 3 days |
| Precipitation totals: | 1.3 in. | |
| more information | ||
14 days
forecast
forecast
| Mammoth Lakes |
weather in
January
January
| Mammoth Lakes |
Air temperature in December, °F
Show year:
2025
2024
2023
The highest day temperature during December of 2025 was 54°F. At the same time the lowest night temperature was 2°F. Daily and nightly averages during December were 42.3°F and 29.1°F.
Sunny, partly cloudy and cloudy days
Mostly all days in December are sunny but cloudy days are also possible.
Precipitation total in December, in.
Precipitation total value in Mammoth Lakes in December is 1.3 in. Other months of the year show relatively similar values.
Wind speed in December, mph
The average wind speed value in December is 5.5 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 6.4.
Best time for vacation in Mammoth Lakes
Mammoth Lakes on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Mammoth Lakes
Local time: 22:43
December 29, monday
0000
9°F
S
3 mph
3 mph
0300
10°F
E
1 mph
1 mph
0600
12°F
SE
1 mph
1 mph
0900
16°F
S
1 mph
1 mph
1200
30°F
SW
5 mph
5 mph
1500
32°F
SW
4 mph
4 mph
1800
23°F
E
0 mph
0 mph
2100
19°F
NE
1 mph
1 mph
