December weather forecast and climate
Fairmont, CA

Weather in December

December, the first month of the winter, in Fairmont, is also a fresh month, with average temperature fluctuating between 38.3°F (3.5°C) and 54.7°F (12.6°C).

Temperature

December is the coldest month, with an average high-temperature of 54.7°F (12.6°C) and an average low-temperature of 38.3°F (3.5°C).

Humidity

In December, the average relative humidity is 54%.

Rainfall

The month with the most rainfall in Fairmont is December when the rain falls for 5.8 days and typically aggregates up to 1.57" (40mm) of precipitation.

Snowfall

Months with snowfall in Fairmont are January through May, November and December. The month with the most snowfall is December when snow falls for 2.4 days and typically aggregates up to 5.31" (135mm) of snow.

Daylight

December has the shortest days of the year in Fairmont, with an average of 9.9h of daylight.

Sunshine

In December, the average sunshine is 7h.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to the UV radiation for the ordinary person.
Note: In December, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Fairmont?

December is the coldest month, with an average high-temperature of 54.7°F (12.6°C) and an average low-temperature of 38.3°F (3.5°C).

What is the temperature in December in Fairmont?

In Fairmont, in December, the average high-temperature is 54.7°F (12.6°C), and the average low-temperature is 38.3°F (3.5°C).

What is the average humidity in December in Fairmont?

In December, the average relative humidity in Fairmont, California, is 54%.

How many days does it rain in December in Fairmont?

In Fairmont, in December, during 5.8 rainfall days, 1.57" (40mm) of precipitation is typically accumulated.

What is the wettest month in Fairmont?

The month with the most rainfall in Fairmont is December when the rain falls for 5.8 days and typically aggregates up to 1.57" (40mm) of precipitation.

How much does it snow in Fairmont in December?

In December, in Fairmont, it is snowing for 2.4 days. Throughout December, 5.31" (135mm) of snow is accumulated.

What is the snowiest month in Fairmont?

The month with the most snowfall in Fairmont is December when snow falls for 2.4 days and typically aggregates up to 5.31" (135mm) of snow.

What is the month with the shortest days in Fairmont?

With an average of 9.9h of daylight, December has the shortest days of the year in Fairmont, California.

How many hours of daylight does Fairmont have in December?

In December, the average length of the day in Fairmont, California, is 9.9h.

How long on average sun shines in December in Fairmont?

In December, the average sunshine in Fairmont, California, is 7h.

When is the lowest UV index in Fairmont?

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Fairmont, California.

What is the UV index reading in December in Fairmont?

In December, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV rays.

Average temperature in December
Fairmont, CA

Average temperature in December - Fairmont, CA
  • Average high temperature in December: 54.7°F

The warmest month (with the highest average high temperature) is August (90.1°F).
The month with the lowest average high temperature is December (54.7°F).

  • Average low temperature in December: 38.3°F

The month with the highest average low temperature is August (62.1°F).
The coldest month (with the lowest average low temperature) is December (38.3°F).

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Average pressure in December
Fairmont, CA

Average pressure in December - Fairmont, CA
  • Average pressure in December: 30.09"

The month with the highest atmospheric pressure is January (30.11").
The month with the lowest atmospheric pressure is June (29.88").

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Average wind speed in December
Fairmont, CA

Average wind speed in December - Fairmont, CA
  • Average wind speed in December: 7.1mph

The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest months (with the lowest average wind speed) are August and September (5.3mph).

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Average humidity in December
Fairmont, CA

Average humidity in December - Fairmont, CA
  • Average humidity in December: 54%

Months with the highest relative humidity are February and March (56%).
The month with the lowest relative humidity is August (35%).

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Average rainfall in December
Fairmont, CA

Average rainfall in December - Fairmont, CA
  • Average rainfall in December: 1.57"

The wettest month (with the highest rainfall) is December (1.57").
The driest months (with the least rainfall) are June and August (0.04").

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Average rainfall days in December
Fairmont, CA

Average rainfall days in December - Fairmont, CA
  • Average rainfall days in December: 5.8 days

The month with the highest number of rainy days is March (7.3 days).
Months with the least rainy days are August and September (1.2 days).

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Average snowfall in December
Fairmont, CA

Average snowfall in December - Fairmont, CA
  • Average snowfall in December: 5.31"

The month with the highest snowfall is December (5.31").
Months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Fairmont, CA

Average snowfall days in December - Fairmont, CA
  • Average snowfall days in December: 2.4 days

The month with the highest number of snowfall days is February (2.8 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Fairmont, CA

Average daylight in December / Average sunshine in December - Fairmont, CA
  • Average daylight in December: 9.9h

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in December: 7h

The month with the most sunshine is July (Average sunshine: 12.2h).
Months with the least sunshine are January and February (Average sunshine: 6.8).

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Average sunshine days in December
Fairmont, CA

Average sunshine days in December - Fairmont, CA
  • Average sunshine days in December: 23.3 days

The month with the most sunshine days is August (29.2 days).
The month with the least sunshine days is February (20.8 days).

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Average UV index in December
Fairmont, CA

Average UV index in December - Fairmont, CA
  • Average UV index in December: 3

Months with the highest UV index are July and August (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in December
Fairmont, CA

Average cloud cover in December - Fairmont, CA
  • Average cloud cover in December: 21

The month with the most cloud cover is March (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 4).

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Average visibility in December
Fairmont, CA

Average visibility in December - Fairmont, CA
  • Average visibility in December: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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