Weather in December
Temperature
The months of January and December bring the lowest temperatures, averaging a high of 37.4°F (3°C).Rainfall
In Olympic Valley, in December, it is raining for 9 days, with typically 6.81" (173mm) of accumulated precipitation. In Olympic Valley, during the entire year, the rain falls for 59 days and collects up to 47.8" (1214mm) of precipitation.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:02 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:48 pm PST.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
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Average temperature in December
Olympic Valley, CA
- Average high temperature in December: 37.4°F
The warmest months (with the highest average high temperature) are July and August (75.2°F).
The months with the lowest average high temperature are January and December (37.4°F).
- Average low temperature in December: 15.8°F
The month with the highest average low temperature is July (44.6°F).
The coldest months (with the lowest average low temperature) are January and December (15.8°F).
Average rainfall in December
Olympic Valley, CA
- Average rainfall in December: 6.8"
The wettest month (with the highest rainfall) is January (10.1").
The driest month (with the least rainfall) is August (0.3").
Average rainfall days in December
Olympic Valley, CA
- Average rainfall days in December: 9 days
The month with the highest number of rainy days is January (10 days).
The months with the least rainy days are August and October (1 days).
Average daylight in December
Olympic Valley, CA
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
Olympic Valley, California, USA
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