Mammoth Lakes weather in December 2019

  • 4°C maximum daytime temperature in December in Mammoth Lakes4
    4°C max day temperature
  • 6 hours of sunshine per day
  • 6 days with some rainfall in December in Mammoth Lakes6
    6 days with some rainfall
  • -9°C minimum night-time temperature in December in Mammoth Lakes-9
    -9°C min night temperature
  • 10 hours of daylight per day in December in Mammoth Lakes10
    10 hours of daylight per day
  • No heat & humidity in December in Mammoth Lakes0
    No heat & humidity
  • 119 mm monthly rainfall in December in Mammoth Lakes119
    119 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in December in Mammoth Lakes2
    2 (Low) UV index

Going to Mammoth Lakes? Find the best month to visit Mammoth Lakes based on the weather.

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Expect 4°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Mammoth Lakes in December. Check more long-term weather averages for Mammoth Lakes in December before you book your next holiday to California in 2019/2020.

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More about Mammoth Lakes

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The December weather guide for Mammoth Lakes, California shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

Guide to Mammoth Lakes weather in December

The average maximum daytime temperature in Mammoth Lakes in December is a cold 4°C (39°F). The average night-time temperature is usually a very cold -9°C (16°F). There are usually 6 hours of bright sunshine each day, which represents 62% of the 10 hours of daylight.

Expect 119mm (4.7 inches) of rainfall across the whole of December with 6 days with some rain falling. Maximum UV levels will be low (2 UV index) at midday when the skies are clear.

Mammoth Lakes sunrise & sunset times for December 2019

Browse the sunrise & sunset times for Mammoth Lakes in December 2019. Select a month to view Mammoth Lakes sunrise & sunset times for the next twelve months.


Date Sunrise times Sunset times
Sunday, 1st December 2019 06:52 16:38
Monday, 2nd December 2019 06:53 16:37
Tuesday, 3rd December 2019 06:54 16:37
Wednesday, 4th December 2019 06:55 16:37
Thursday, 5th December 2019 06:56 16:37
Friday, 6th December 2019 06:57 16:37
Saturday, 7th December 2019 06:57 16:37
Sunday, 8th December 2019 06:58 16:37
Monday, 9th December 2019 06:59 16:37
Tuesday, 10th December 2019 07:00 16:37
Wednesday, 11th December 2019 07:01 16:38
Thursday, 12th December 2019 07:01 16:38
Friday, 13th December 2019 07:02 16:38
Saturday, 14th December 2019 07:03 16:38
Sunday, 15th December 2019 07:04 16:38
Monday, 16th December 2019 07:04 16:39
Tuesday, 17th December 2019 07:05 16:39
Wednesday, 18th December 2019 07:05 16:40
Thursday, 19th December 2019 07:06 16:40
Friday, 20th December 2019 07:07 16:40
Saturday, 21st December 2019 07:07 16:41
Sunday, 22nd December 2019 07:08 16:41
Monday, 23rd December 2019 07:08 16:42
Tuesday, 24th December 2019 07:09 16:42
Wednesday, 25th December 2019 07:09 16:43
Thursday, 26th December 2019 07:09 16:44
Friday, 27th December 2019 07:10 16:44
Saturday, 28th December 2019 07:10 16:45
Sunday, 29th December 2019 07:10 16:46
Monday, 30th December 2019 07:11 16:46
Tuesday, 31st December 2019 07:11 16:47
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