Mountain Pass
California, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Mountain Pass, CA

The first month of the winter, December, is still a cool month in Mountain Pass, California, with average temperature ranging between min 30.2°F (-1°C) and max 51.1°F (10.6°C).

Temperature

In December, the average high-temperature marginally drops, from a moderate 58.8°F (14.9°C) in November, to a cool 51.1°F (10.6°C). The average low-temperature, in December, is 30.2°F (-1°C).

Rainfall

Throughout December, 0.6" (16mm) of precipitation is accumulated. Throughout the year, 8.4" (212.4mm) of rain is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Mountain Pass, 1.5" (38.1mm) of snow is typically accumulated. Throughout the year, 9.3" (236.2mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Mountain Pass, California, with an average of 9.8h of daylight.

What is the temperature in December in Mountain Pass?

In Mountain Pass, in December, the average high-temperature is 51.1°F (10.6°C), and the average low-temperature is 30.2°F (-1°C).

How much does it rain in Mountain Pass in December?

Throughout December, in Mountain Pass, California, 0.6" (16mm) of precipitation is accumulated.

How much does it snow in Mountain Pass in December?

Throughout December, 1.5" (38.1mm) of snow is accumulated.

What is the month with the shortest days in Mountain Pass?

December has the shortest days of the year, with an average of 9.8h of daylight.

What is the average length of the day in December in Mountain Pass?

In December, the average length of the day is 9.8h.
Average temperature in December - Mountain Pass, CA
  • Average high temperature in December: 51.1°F

The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is January (50.4°F).

  • Average low temperature in December: 30.2°F

The month with the highest average low temperature is July (66.5°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).

Average rainfall in December - Mountain Pass, CA
  • Average rainfall in December: 0.6"

The wettest month (with the highest rainfall) is August (1.2").
The driest month (with the lowest rainfall) is June (0.2").

Average snowfall in December - Mountain Pass, CA
  • Average snowfall in December: 1.5"

The month with the highest snowfall is January (2.7").
Months with the lowest snowfall are June, July, August and September (0").

Average daylight in December - Mountain Pass, CA
  • Average daylight in December: 9.8h

The month with the longest days is June (Average daylight: 14.5h).
The month with shortest days is December (Average daylight: 9.8h).