Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
In Mountain Pass, December is the month with the lowest recorded average temperatures, measuring a high of 50.9°F (10.5°C) and a low of 38.8°F (3.8°C).Humidity
In Mountain Pass, the average relative humidity in December is 46%.Rainfall
In Mountain Pass, California, during December, the rain falls for 3.9 days and regularly aggregates up to 0.31" (8mm) of precipitation. Throughout the year, in Mountain Pass, California, there are 42.9 rainfall days, and 3.23" (82mm) of precipitation is accumulated.Snowfall
January, March through December are months without snowfall.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year.On the first day of December in Mountain Pass, California, sunrise is at 6:33 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 4:39 pm PST.
Sunshine
The month with the least sunshine in Mountain Pass, California, is December, with an average of 7h of sunshine.UV index
December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 2 suggests this advice:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. To protect against the Sun's most potent rays, avoid direct exposure around midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Frequently asked questions
What part of the year is the coldest in Mountain Pass?
What is the average December temperature in Mountain Pass?
What is the average humidity in December in Mountain Pass?
How much does it rain in Mountain Pass in December?
When it does not snow in Mountain Pass?
What is the month with the shortest days in Mountain Pass?
How many hours of daylight does Mountain Pass have in December?
When are sunrise and sunset in December in Mountain Pass?
What is the month with the least sunshine in Mountain Pass?
How long on average sun shines in December in Mountain Pass?
When is the lowest UV index in Mountain Pass?
What is the UV index reading in December in Mountain Pass?
Average temperature in December
Mountain Pass, CA
- Average high temperature in December: 50.9°F
The warmest month (with the highest average high temperature) is July (98.4°F).
The month with the lowest average high temperature is December (50.9°F).
- Average low temperature in December: 38.8°F
The months with the highest average low temperature are July and August (78.4°F).
The coldest month (with the lowest average low temperature) is December (38.8°F).
Average pressure in December
Mountain Pass, CA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.76"Hg).
Average wind speed in December
Mountain Pass, CA
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is January (5.4mph).
Average humidity in December
Mountain Pass, CA
- Average humidity in December: 46%
The month with the highest relative humidity is January (47%).
The month with the lowest relative humidity is June (15%).
Average rainfall in December
Mountain Pass, CA
- Average rainfall in December: 0.31"
The wettest months (with the highest rainfall) are July and August (0.55").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in December
Mountain Pass, CA
- Average rainfall days in December: 3.9 days
The month with the highest number of rainy days is July (6.1 days).
The month with the least rainy days is June (0.9 days).
Average snowfall in December
Mountain Pass, CA
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.24").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Mountain Pass, CA
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Mountain Pass, CA
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 7h and 0min
The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in December
Mountain Pass, CA
- Average sunshine days in December: 25.6 days
The month with the most sunshine days is June (27.6 days).
The month with the least sunshine days is July (18.7 days).
Average UV index in December
Mountain Pass, CA
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Mountain Pass, CA
- Average cloud cover in December: 19
The months with the most cloud cover are January and December (Cloud cover 19).
The months with the least cloud cover are June and August (Cloud cover 6).
Average visibility in December
Mountain Pass, CA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Mountain Pass, California, USA
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