December weather forecastFerndale, WA
December
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 8h and 18min
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 12min
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: 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: 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: 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: 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).
