December weather forecast and climate
Ferndale, CA

Weather in December

The first month of the winter, December, is still a cool month in Ferndale, California, with average temperature varying between 41.9°F (5.5°C) and 53.1°F (11.7°C).

Temperature

The coldest months are February and December, with an average high-temperature of 53.1°F (11.7°C).

Humidity

In Ferndale, the average relative humidity in December is 80%.

Rainfall

December is the month with the most rainfall in Ferndale. Rain falls for 14.9 days and accumulates 5.16" (131mm) of precipitation.

Snowfall

January, March through December are months without snowfall in Ferndale.

Daylight

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

Sunshine

With an average of 5.1h of sunshine, December has the least sunshine of the year.

UV index

Months with the lowest UV index in Ferndale, California, are January through March, November and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV rays for the average person.
Note: In December, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 Ferndale?

The coldest months in Ferndale, California, are February and December, with an average high-temperature of 53.1°F (11.7°C).

What is the temperature in December in Ferndale?

In Ferndale, in December, the average high-temperature is 53.1°F (11.7°C), and the average low-temperature is 41.9°F (5.5°C).

What is the average humidity in December in Ferndale?

In December, the average relative humidity is 80%.

How much does it rain in Ferndale in December?

In December, in Ferndale, California, the rain falls for 14.9 days. Throughout December, 5.16" (131mm) of precipitation is accumulated.

What is the rainiest month in Ferndale?

The month with the most rainfall is December when the rain falls for 14.9 days and typically aggregates up to 5.16" (131mm) of precipitation.

When it does not snow in Ferndale?

January, March through December are months without snowfall in Ferndale, California.

What is the month with the shortest days in Ferndale?

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

How many hours of daylight does Ferndale have in December?

The average length of the day in December is 9.3h.

What is the month with the least sunshine in Ferndale?

The month with the least sunshine in Ferndale is December, with an average of 5.1h of sunshine.

How long on average sun shines in December in Ferndale?

In December, the average sunshine in Ferndale, California, is 5.1h.

What is the month with the lowest UV index in Ferndale?

January through March, November and December, with an average maximum UV index of 3, are months with the lowest UV index.

How high is the UV index in December in Ferndale?

The average daily maximum UV index in December in Ferndale, California, is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV rays.

Average temperature in December
Ferndale, CA

Average temperature in December - Ferndale, CA
  • Average high temperature in December: 53.1°F

The warmest month (with the highest average high temperature) is August (71.6°F).
Months with the lowest average high temperature are February and December (53.1°F).

  • Average low temperature in December: 41.9°F

The month with the highest average low temperature is August (53.2°F).
The coldest month (with the lowest average low temperature) is February (41.7°F).

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Average pressure in December
Ferndale, CA

Average pressure in December - Ferndale, CA
  • Average pressure in December: 30.11"

The month with the highest atmospheric pressure is January (30.13").
The month with the lowest atmospheric pressure is August (29.96").

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Average wind speed in December
Ferndale, CA

Average wind speed in December - Ferndale, CA
  • Average wind speed in December: 7.8mph

The windiest months (with the highest average wind speed) are March and June (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

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Average humidity in December
Ferndale, CA

Average humidity in December - Ferndale, CA
  • Average humidity in December: 80%

Months with the highest relative humidity are February and March (82%).
Months with the lowest relative humidity are September and October (75%).

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Average rainfall in December
Ferndale, CA

Average rainfall in December - Ferndale, CA
  • Average rainfall in December: 5.16"

The wettest month (with the highest rainfall) is December (5.16").
The driest months (with the least rainfall) are July and August (0.12").

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Average rainfall days in December
Ferndale, CA

Average rainfall days in December - Ferndale, CA
  • Average rainfall days in December: 14.9 days

The month with the highest number of rainy days is March (16.8 days).
The month with the least rainy days is August (1.8 days).

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Average snowfall in December
Ferndale, CA

Average snowfall in December - Ferndale, CA
  • Average snowfall in December: 0"

The month with the highest snowfall is February (0.31").
Months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in December
Ferndale, CA

Average snowfall days in December - Ferndale, CA
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is February (0.3 days).
Months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).

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

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

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in December: 5.1h

Months with the most sunshine are July and August (Average sunshine: 11.6h).
The month with the least sunshine is December (Average sunshine: 5.1h).

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Average sunshine days in December
Ferndale, CA

Average sunshine days in December - Ferndale, CA
  • Average sunshine days in December: 15 days

The month with the most sunshine days is July (28.1 days).
The month with the least sunshine days is March (12.3 days).

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Average UV index in December
Ferndale, CA

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

Months with the highest UV index are June, July and August (UV index 5).
Months with the lowest UV index are January, February, March, November and December (UV index 3).

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Average cloud cover in December
Ferndale, CA

Average cloud cover in December - Ferndale, CA
  • Average cloud cover in December: 44

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 15).

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Average visibility in December
Ferndale, CA

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

Months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).

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