December weather forecast
Wellpinit, WA

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Weather in December

December, the first month of the winter in Wellpinit, is also a subzero cold month, with an average temperature varying between 31.5°F (-0.3°C) and 21.9°F (-5.6°C).

Temperature

With its high average temperature of 31.5°F (-0.3°C) and a low of 21.9°F (-5.6°C), December is regarded as the coldest month.

Humidity

In Wellpinit, the average relative humidity in December is 86%.

Rainfall

In Wellpinit, in December, during 9.1 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. In Wellpinit, during the entire year, the rain falls for 127.9 days and collects up to 15.71" (399mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. In Wellpinit, in December, during 15.9 snowfall days, 9.02" (229mm) of snow is typically accumulated. In Wellpinit, during the entire year, snow falls for 65.1 days and aggregates up to 37.36" (949mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 30min of daylight.
On the first day of the month, sunrise is at 7:21 am and sunset at 4:01 pm. On the last day of December, in Wellpinit, sunrise is at 7:41 am and sunset at 4:09 pm PST.

Sunshine

December has the least sunshine of the year in Wellpinit, Washington, with an average of 4.1h of sunshine.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 2 during December leads to these advisories:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
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Frequently asked questions

What is the coldest month in Wellpinit?

December, characterized by an average high temperature of 31.5°F (-0.3°C) and a low temperature of 21.9°F (-5.6°C), is generally the coldest month.

How cold is it in Wellpinit in December?

The average high-temperature and low-temperature in Wellpinit, Washington, during December are 31.5°F (-0.3°C) and 21.9°F (-5.6°C) respectively.

What is the average humidity in December in Wellpinit?

In Wellpinit, the average relative humidity in December is 86%.

How much does it rain in Wellpinit in December?

In Wellpinit, Washington, during December, the rain falls for 9.1 days and regularly aggregates up to 1.89" (48mm) of precipitation.

How many days does it snow in December in Wellpinit?

In Wellpinit, Washington, in December, during 15.9 snowfall days, 9.02" (229mm) of snow is typically accumulated.

What is the month with the shortest days in Wellpinit?

December has the shortest days of the year in Wellpinit, Washington, with an average of 8h and 30min of daylight.

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

The average day length in December in Wellpinit is 8h and 28min.

When is the sunrise / sunset in December in Wellpinit?

In December, on the first day of the month, sunrise is at 7:21 am and sunset at 4:01 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 4:09 pm PST.

What is the month with the least sunshine in Wellpinit?

December has the least sunshine of the year in Wellpinit, Washington, with an average of 4.1h of sunshine.

How many hours of sunshine does Wellpinit have in December?

In Wellpinit, the average sunshine duration in December is 4.1h.

When is the lowest UV index in Wellpinit?

The months with the lowest UV index in Wellpinit are January through March, October through December, with an average maximum UV index of 2.

What is the UV index intensity in December in Wellpinit?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from 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
Wellpinit, WA

Average temperature in December - Wellpinit, WA
  • Average high temperature in December: 31.5°F

The warmest months (with the highest average high temperature) are July and August (83.3°F).
The month with the lowest average high temperature is December (31.5°F).

  • Average low temperature in December: 21.9°F

The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is December (21.9°F).

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Average pressure in December
Wellpinit, WA

Average pressure in December - Wellpinit, WA
  • Average pressure in December: 30.16"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.9"Hg).

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Average wind speed in December
Wellpinit, WA

Average wind speed in December - Wellpinit, WA
  • Average wind speed in December: 6.6mph

The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

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Average humidity in December
Wellpinit, WA

Average humidity in December - Wellpinit, WA
  • Average humidity in December: 86%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (37%).

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Average rainfall in December
Wellpinit, WA

Average rainfall in December - Wellpinit, WA
  • Average rainfall in December: 1.89"

The wettest month (with the highest rainfall) is March (1.97").
The driest months (with the least rainfall) are July and August (0.31").

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Average rainfall days in December
Wellpinit, WA

Average rainfall days in December - Wellpinit, WA
  • Average rainfall days in December: 9.1 days

The month with the highest number of rainy days is March (16.3 days).
The month with the least rainy days is August (5.2 days).

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Average snowfall in December
Wellpinit, WA

Average snowfall in December - Wellpinit, WA
  • Average snowfall in December: 9.02"

The month with the highest snowfall is January (10").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Wellpinit, WA

Average snowfall days in December - Wellpinit, WA
  • Average snowfall days in December: 15.9 days

The month with the highest number of snowfall days is December (15.9 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Wellpinit, WA
  • Average daylight in December: 8h and 3min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).

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Average sunshine days in December
Wellpinit, WA

Average sunshine days in December - Wellpinit, WA
  • Average sunshine days in December: 12.8 days

The month with the most sunshine days is July (23.7 days).
The month with the least sunshine days is March (10.2 days).

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Average UV index in December
Wellpinit, WA

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

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

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Average cloud cover in December
Wellpinit, WA

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

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 12).

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Average visibility in December
Wellpinit, WA

Average visibility in December - Wellpinit, WA
  • Average visibility in December: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

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Wellpinit, Washington, USA

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