December weather forecast
Ferndale, WA

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Weather in December

December, the first month of the winter in Ferndale, is also an icy month, with an average temperature fluctuating between 41.9°F (5.5°C) and 35.4°F (1.9°C).

Temperature

The month of December, characterized by an average high of 41.9°F (5.5°C) and a low of 35.4°F (1.9°C), is recognized as the coldest.

Humidity

The average relative humidity in December in Ferndale is 82%.

Rainfall

In Ferndale, during December, the rain falls for 18.3 days and regularly aggregates up to 4.76" (121mm) of precipitation. Throughout the year, there are 178.6 rainfall days, and 37.32" (948mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Ferndale, Washington, are January through April, November and December. In Ferndale, Washington, during December, snow falls for 1.8 days and regularly aggregates up to 0.59" (15mm) of snow. In Ferndale, during the entire year, snow falls for 10.7 days and aggregates up to 6.57" (167mm) of snow.

Daylight

With an average of 8h and 18min of daylight, December has the shortest days of the year in Ferndale, Washington.
On the first day of the month, sunrise is at 7:43 am and sunset at 4:16 pm. On the last day of December, in Ferndale, Washington, sunrise is at 8:03 am and sunset at 4:23 pm PST.

Sunshine

January and December, with an average of 4.2h of sunshine, are months with the least sunshine in Ferndale.

UV index

The months with the lowest UV index in Ferndale, Washington, are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in Ferndale?

Ferndale's coldest temperatures are experienced in December, with average high temperatures of 41.9°F (5.5°C) and lows of 35.4°F (1.9°C).

Is it cold in Ferndale during December?

In Ferndale, 41.9°F (5.5°C) is the average high-temperature and 35.4°F (1.9°C) is the average low-temperature during December.

What is the average humidity in December in Ferndale?

In Ferndale, the average relative humidity in December is 82%.

How much does it rain in Ferndale in December?

In December, the rain falls for 18.3 days. Throughout December, 4.76" (121mm) of precipitation is accumulated.

How many days does it snow in December in Ferndale?

In Ferndale, in December, snow falls for 1.8 days, with typically accumulated 0.59" (15mm) of snow.

What is the month with the shortest days in Ferndale?

December has the shortest days of the year in Ferndale, Washington, with an average of 8h and 18min of daylight.

What is the average length of the day in December in Ferndale?

In December, the average day length is 8h and 20min.

When is the sunrise / sunset in December in Ferndale?

On the first day of December, sunrise is at 7:43 am and sunset at 4:16 pm. On the last day of the month, sunrise is at 8:03 am and sunset at 4:23 pm PST.

What are the months with the least sunshine in Ferndale?

The months with the least sunshine in Ferndale are January and December, with an average of 4.2h of sunshine.

How long on average sun shines in December in Ferndale?

The average sunshine duration in December in Ferndale, Washington, is 4.2h.

When is the lowest UV index in Ferndale?

The months with the lowest UV index in Ferndale are January, February, November and December, with an average maximum UV index of 2.

What is the UV index intensity in December in Ferndale?

In December, the average daily maximum UV index in Ferndale is 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Ferndale, WA

Average temperature in December - Ferndale, WA
  • Average high temperature in December: 41.9°F

The warmest month (with the highest average high temperature) is August (71.1°F).
The month with the lowest average high temperature is December (41.9°F).

  • Average low temperature in December: 35.4°F

The month with the highest average low temperature is August (53.8°F).
The coldest month (with the lowest average low temperature) is February (35.2°F).

Average pressure in December
Ferndale, WA

Average pressure in December - Ferndale, WA
  • Average pressure in December: 30.07"Hg

The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is March (30"Hg).

Average wind speed in December
Ferndale, WA

Average wind speed in December - Ferndale, WA
  • Average wind speed in December: 6.1mph

The windiest month (with the highest average wind speed) is November (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity in December
Ferndale, WA

Average humidity in December - Ferndale, WA
  • Average humidity in December: 82%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is July (74%).

Average rainfall in December
Ferndale, WA

Average rainfall in December - Ferndale, WA
  • Average rainfall in December: 4.76"

The wettest month (with the highest rainfall) is November (5.71").
The driest month (with the least rainfall) is July (0.67").

Average rainfall days in December
Ferndale, WA

Average rainfall days in December - Ferndale, WA
  • Average rainfall days in December: 18.3 days

The month with the highest number of rainy days is November (20.1 days).
The month with the least rainy days is August (7.3 days).

Average snowfall in December
Ferndale, WA

Average snowfall in December - Ferndale, WA
  • Average snowfall in December: 0.59"

The month with the highest snowfall is February (2.56").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Ferndale, WA

Average snowfall days in December - Ferndale, WA
  • Average snowfall days in December: 1.8 days

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Ferndale, WA
  • Average daylight in December: 8h and 2min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in December: 4h and 1min

The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The months with the least sunshine are January and December (Average sunshine: 4h and 12min).

Average sunshine days in December
Ferndale, WA

Average sunshine days in December - Ferndale, WA
  • Average sunshine days in December: 11.2 days

The month with the most sunshine days is August (21.9 days).
The month with the least sunshine days is November (8.5 days).

Average UV index in December
Ferndale, WA

Average UV index in December - Ferndale, WA
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Ferndale, WA

Average cloud cover in December - Ferndale, WA
  • Average cloud cover in December: 56

The months with the most cloud cover are January and December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in December
Ferndale, WA

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

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

Ferndale, Washington, USA

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