December weather forecast
Colfax, WA

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Weather in December

The first month of the winter, December, is also a wintry month in Colfax, Washington, with an average temperature ranging between min 24.6°F (-4.1°C) and max 34.7°F (1.5°C).

Temperature

The month of December sees the lowest average temperatures, reaching 34.7°F (1.5°C) at the peak and 24.6°F (-4.1°C) at the low.

Humidity

In Colfax, the average relative humidity in December is 84%.

Rainfall

The month with the most rainfall in Colfax is December, when the rain falls for 9.5 days and typically aggregates up to 1.93" (49mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. In Colfax, in December, during 9.6 snowfall days, 4.65" (118mm) of snow is typically accumulated. Throughout the year, in Colfax, there are 39.6 snowfall days, and 22.68" (576mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Colfax, Washington, with an average of 8h and 36min of daylight.
On the first day of the month, sunrise is at 7:14 am and sunset at 4:02 pm. On the last day of December, in Colfax, sunrise is at 7:34 am and sunset at 4:11 pm PST.

Sunshine

January and December, with an average of 4.6h of sunshine, are months with the least sunshine.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Colfax. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 2 in December translates into this advice:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. To avoid the Sun's strongest rays, limit exposure around the mid-day period. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest in Colfax?

December is the coldest month in Colfax, Washington, with an average high-temperature of 34.7°F (1.5°C) and an average low-temperature of 24.6°F (-4.1°C).

How cold is it in Colfax in December?

The high-temperature, in December, in Colfax, is 34.7°F (1.5°C), while the low-temperature averages to 24.6°F (-4.1°C). In July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, is estimated at 82.4°F (28°C).

What is the average humidity in December in Colfax?

The average relative humidity in December is 84%.

What is the rainiest month in Colfax?

The month with the most rainfall is December, when the rain falls for 9.5 days and typically aggregates up to 1.93" (49mm) of precipitation.

How many days does it rain in December in Colfax?

In Colfax, Washington, in December, it is raining for 9.5 days, with typically 1.93" (49mm) of accumulated precipitation.

How many days does it snow in December in Colfax?

In December, it is snowing for 9.6 days. Throughout December, 4.65" (118mm) of snow is accumulated.

What is the month with the shortest days in Colfax?

The month with the shortest days in Colfax, Washington, is December, with an average of 8h and 36min of daylight.

How many hours of daylight does Colfax have in December?

The average day length in December in Colfax is 8h and 36min.

When are sunrise and sunset in December in Colfax?

On the first day of December in Colfax, Washington, sunrise is at 7:14 am and sunset at 4:02 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 4:11 pm PST.

What is the month with the least sunshine in Colfax?

The months with the least sunshine are January and December, with an average of 4.6h of sunshine.

How long on average sun shines in December in Colfax?

In Colfax, Washington, the average sunshine duration in December is 4.6h.

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

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

What is the UV index reading in December in Colfax?

The average daily maximum UV index in December in Colfax, Washington, is 2. A UV Index reading of 2, and below, represents a low health threat 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
Colfax, WA

Average temperature in December - Colfax, WA
  • Average high temperature in December: 34.7°F

The warmest month (with the highest average high temperature) is August (83.5°F).
The month with the lowest average high temperature is December (34.7°F).

  • Average low temperature in December: 24.6°F

The month with the highest average low temperature is August (60.4°F).
The coldest month (with the lowest average low temperature) is December (24.6°F).

Average pressure in December
Colfax, WA

Average pressure in December - Colfax, WA
  • Average pressure in December: 30.17"Hg

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

Average wind speed in December
Colfax, WA

Average wind speed in December - Colfax, WA
  • Average wind speed in December: 7mph

The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

Average humidity in December
Colfax, WA

Average humidity in December - Colfax, WA
  • Average humidity in December: 84%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (37%).

Average rainfall in December
Colfax, WA

Average rainfall in December - Colfax, WA
  • Average rainfall in December: 1.93"

The wettest month (with the highest rainfall) is December (1.93").
The driest month (with the least rainfall) is July (0.28").

Average rainfall days in December
Colfax, WA

Average rainfall days in December - Colfax, WA
  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is April (14.6 days).
The month with the least rainy days is July (4.5 days).

Average snowfall in December
Colfax, WA

Average snowfall in December - Colfax, WA
  • Average snowfall in December: 4.65"

The month with the highest snowfall is February (6.69").
The months with the least snowfall are June, July and August (0").

Average snowfall days in December
Colfax, WA

Average snowfall days in December - Colfax, WA
  • Average snowfall days in December: 9.6 days

The months with the highest number of snowfall days are February and December (9.6 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Colfax, WA
  • Average daylight in December: 8h and 4min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in December: 4h and 4min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 4h and 36min).

Average sunshine days in December
Colfax, WA

Average sunshine days in December - Colfax, WA
  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is July (24.6 days).
The month with the least sunshine days is February (12.2 days).

Average UV index in December
Colfax, WA

Average UV index in December - Colfax, 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, November and December (UV index 2).

Average cloud cover in December
Colfax, WA

Average cloud cover in December - Colfax, WA
  • Average cloud cover in December: 53

The months with the most cloud cover are January and December (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 11).

Average visibility in December
Colfax, WA

Average visibility in December - Colfax, 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 months with the lowest visibility are January, February and December (5mi).

Colfax, Washington, USA

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