December weather forecast
Colville, WA

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Weather in December

The first month of the winter, December, is also a subzero cold month in Colville, Washington, with an average temperature ranging between min 17.6°F (-8°C) and max 29.3°F (-1.5°C).

Temperature

December is the coldest month, exhibiting average temperatures of 29.3°F (-1.5°C) at the peak and 17.6°F (-8°C) at the base.

Humidity

In Colville, the average relative humidity in December is 90%.

Rainfall

The wettest months are November and December, with an average 1.54" (39mm) of rainfall.

Snowfall

Months with snowfall are January through April, September through December. In December, in Colville, Washington, it is snowing for 13.9 days. Throughout December, 6.93" (176mm) of snow is accumulated. In Colville, during the entire year, snow falls for 57.6 days and aggregates up to 27.87" (708mm) of snow.

Daylight

With an average of 8h and 24min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:23 am and sunset at 3:58 pm. On the last day of December, in Colville, Washington, sunrise is at 7:43 am and sunset at 4:06 pm PST.

Sunshine

The average sunshine in December is 4.2h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In December, the maximum UV index of 1 transforms into these recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

What are the coldest months in Colville?

December, on average, is the coldest month in Colville, Washington, registering a high temperature of 29.3°F (-1.5°C) and a low of 17.6°F (-8°C).

How cold is it in Colville in December?

The average high-temperature and low-temperature in Colville, Washington, during December are 29.3°F (-1.5°C) and 17.6°F (-8°C) respectively. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is evaluated at 82.4°F (28°C).

What is the average humidity in December in Colville?

In December, the average relative humidity in Colville is 90%.

What is the rainiest month in Colville?

The months with the most rainfall in Colville are November and December, with an average 1.54" (39mm) of precipitation.

How much does it rain in Colville in December?

In Colville, in December, it is raining for 9.1 days, with typically 1.54" (39mm) of accumulated precipitation.

How much does it snow in Colville in December?

In Colville, Washington, in December, snow falls for 13.9 days, with typically accumulated 6.93" (176mm) of snow.

What is the month with the shortest days in Colville?

The month with the shortest days in Colville, Washington, is December, with an average of 8h and 24min of daylight.

How many hours of daylight does Colville have in December?

In December, the average day length in Colville, Washington, is 8h and 23min.

What time are sunrise and sunset in December in Colville?

In December, on the first day of the month, sunrise is at 7:23 am and sunset at 3:58 pm. On the last day of the month, in Colville, Washington, sunrise is at 7:43 am and sunset at 4:06 pm PST.

How many hours of sunshine does Colville have in December?

In December, the average sunshine duration in Colville is 4.2h.

When is the lowest UV index in Colville?

The months with the lowest UV index in Colville are January, February, November and December, with an average maximum UV index of 1.

What is the UV index reading in December in Colville?

In December, the average daily maximum UV index in Colville is 1. A UV Index reading of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
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
Colville, WA

Average temperature in December - Colville, WA
  • Average high temperature in December: 29.3°F

The warmest month (with the highest average high temperature) is August (82.6°F).
The month with the lowest average high temperature is December (29.3°F).

  • Average low temperature in December: 17.6°F

The month with the highest average low temperature is August (50°F).
The coldest month (with the lowest average low temperature) is February (16.7°F).

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Average pressure in December
Colville, WA

Average pressure in December - Colville, WA
  • Average pressure in December: 30.18"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in December
Colville, WA

Average wind speed in December - Colville, WA
  • Average wind speed in December: 3.1mph

The windiest month (with the highest average wind speed) is April (4mph).
The calmest months (with the lowest average wind speed) are January and December (3.1mph).

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Average humidity in December
Colville, WA

Average humidity in December - Colville, WA
  • Average humidity in December: 90%

The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is August (49%).

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Average rainfall in December
Colville, WA

Average rainfall in December - Colville, WA
  • Average rainfall in December: 1.54"

The wettest months (with the highest rainfall) are November and December (1.54").
The driest month (with the least rainfall) is August (0.28").

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Average rainfall days in December
Colville, WA

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

The month with the highest number of rainy days is April (16.1 days).
The month with the least rainy days is August (4.1 days).

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Average snowfall in December
Colville, WA

Average snowfall in December - Colville, WA
  • Average snowfall in December: 6.93"

The month with the highest snowfall is January (7.8").
The months with the least snowfall are May, June, July and August (0").

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Average snowfall days in December
Colville, WA

Average snowfall days in December - Colville, WA
  • Average snowfall days in December: 13.9 days

The month with the highest number of snowfall days is December (13.9 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
Colville, WA

Average daylight in December / Average sunshine in December - Colville, 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 24min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in December
Colville, WA

Average sunshine days in December - Colville, WA
  • Average sunshine days in December: 14.4 days

The month with the most sunshine days is August (24.8 days).
The month with the least sunshine days is March (11.2 days).

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Average UV index in December
Colville, WA

Average UV index in December - Colville, WA
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

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Average cloud cover in December
Colville, WA

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

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 14).

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Average visibility in December
Colville, WA

Average visibility in December - Colville, WA
  • Average visibility in December: 4mi

The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).

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Colville, Washington, USA

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