December weather forecast
French Gulch, CA

Weather in December

The first month of the winter, December, is also a frosty month in French Gulch, California, with average temperature fluctuating between 35.2°F (1.8°C) and 49.3°F (9.6°C).

Temperature

With an average high-temperature of 49.3°F (9.6°C) and an average low-temperature of 35.2°F (1.8°C), December is the coldest month.

Humidity

In December, the average relative humidity is 73%.

Rainfall

In December, the rain falls for 13.9 days. Throughout December, 4.69" (119mm) of precipitation is accumulated. In French Gulch, during the entire year, the rain falls for 99.5 days and collects up to 30.43" (773mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall in French Gulch. December is the month with the most snowfall in French Gulch. Snow falls for 0.8 days and accumulates 0.63" (16mm) of snow.

Daylight

With an average of 9.3h of daylight, December has the shortest days of the year in French Gulch.

Sunshine

With an average of 5.5h of sunshine, December has the least sunshine of the year.

UV index

Months with the lowest UV index in French Gulch are February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 2 interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. 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 French Gulch?

With an average high-temperature of 49.3°F (9.6°C) and an average low-temperature of 35.2°F (1.8°C), December is the coldest month in French Gulch.

What is the average humidity in December in French Gulch?

In December, the average relative humidity in French Gulch, California, is 73%.

How much does it rain in French Gulch in December?

In December, in French Gulch, the rain falls for 13.9 days. Throughout December, 4.69" (119mm) of precipitation is accumulated.

When does it snow the most in French Gulch?

December is the month with the most snowfall in French Gulch. Snow falls for 0.8 days and accumulates 0.63" (16mm) of snow.

How many days does it snow in December in French Gulch?

In December, in French Gulch, it is snowing for 0.8 days. Throughout December, 0.63" (16mm) of snow is accumulated.

What is the month with the shortest days in French Gulch?

December has the shortest days of the year, with an average of 9.3h of daylight.

What is the average length of the day in December in French Gulch?

In French Gulch, the average length of the day in December is 9.3h.

What is the month with the least sunshine in French Gulch?

With an average of 5.5h of sunshine, December has the least sunshine of the year.

How long on average sun shines in December in French Gulch?

The average sunshine in December in French Gulch is 5.5h.

What is the month with the lowest UV index in French Gulch?

February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in French Gulch.

How high is the UV index in December in French Gulch?

The average daily maximum UV index in December in French Gulch is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV rays.

Average temperature in December
French Gulch, CA

Average temperature in December - French Gulch, CA
  • Average high temperature in December: 49.3°F

The warmest month (with the highest average high temperature) is July (92.3°F).
The month with the lowest average high temperature is December (49.3°F).

  • Average low temperature in December: 35.2°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is December (35.2°F).

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Average pressure in December
French Gulch, CA

Average pressure in December - French Gulch, CA
  • Average pressure in December: 30.14"

The month with the highest atmospheric pressure is January (30.16").
Months with the lowest atmospheric pressure are June and August (29.92").

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Average wind speed in December
French Gulch, CA

Average wind speed in December - French Gulch, CA
  • Average wind speed in December: 4.5mph

The windiest months (with the highest average wind speed) are March, April, June and October (5.2mph).
The calmest months (with the lowest average wind speed) are August and November (4.4mph).

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Average humidity in December
French Gulch, CA

Average humidity in December - French Gulch, CA
  • Average humidity in December: 73%

The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is August (35%).

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Average rainfall in December
French Gulch, CA

Average rainfall in December - French Gulch, CA
  • Average rainfall in December: 4.69"

The wettest month (with the highest rainfall) is March (5.91").
The driest month (with the least rainfall) is July (0.08").

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Average rainfall days in December
French Gulch, CA

Average rainfall days in December - French Gulch, CA
  • Average rainfall days in December: 13.9 days

The month with the highest number of rainy days is March (16.8 days).
The month with the least rainy days is August (1.6 days).

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Average snowfall in December
French Gulch, CA

Average snowfall in December - French Gulch, CA
  • Average snowfall in December: 0.63"

The month with the highest snowfall is December (0.63").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
French Gulch, CA

Average snowfall days in December - French Gulch, CA
  • Average snowfall days in December: 0.8 days

The month with the highest number of snowfall days is February (1.1 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
French Gulch, CA

Average daylight in December / Average sunshine in December - French Gulch, CA
  • Average daylight in December: 9.3h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in December: 5.5h

The month with the most sunshine is July (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 5.5h).

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Average sunshine days in December
French Gulch, CA

Average sunshine days in December - French Gulch, CA
  • Average sunshine days in December: 16 days

The month with the most sunshine days is August (27.3 days).
The month with the least sunshine days is March (12.7 days).

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Average UV index in December
French Gulch, CA

Average UV index in December - French Gulch, CA
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 7).
Months with the lowest UV index are February, November and December (UV index 2).

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Average cloud cover in December
French Gulch, CA

Average cloud cover in December - French Gulch, CA
  • Average cloud cover in December: 40

The month with the most cloud cover is March (Cloud cover 43).
Months with the least cloud cover are July and August (Cloud cover 5).

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Average visibility in December
French Gulch, CA

Average visibility in December - French Gulch, 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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