December weather forecast
Kapowsin, WA

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Weather in December

December, the first month of the winter in Kapowsin, is also an icy month, with temperature in the range of an average low of 31.1°F (-0.5°C) and an average high of 41.2°F (5.1°C).

Temperature

December is the month when Kapowsin experiences its coldest temperatures, averaging a high of 41.2°F (5.1°C) and a low of 31.1°F (-0.5°C).

Humidity

In Kapowsin, the average relative humidity in December is 87%.

Rainfall

December is the month with the most rainfall. Rain falls for 18.6 days and accumulates 5.71" (145mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Kapowsin. In Kapowsin, during December, snow falls for 3.8 days and regularly aggregates up to 1.54" (39mm) of snow. In Kapowsin, during the entire year, snow falls for 20.4 days and aggregates up to 13.62" (346mm) of snow.

Daylight

With an average of 8h and 36min of daylight, December has the shortest days of the year in Kapowsin.
On the first day of December, sunrise is at 7:34 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:54 am and sunset at 4:30 pm PST.

Sunshine

The month with the least sunshine in Kapowsin is December, with an average of 4.1h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Kapowsin. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
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Frequently asked questions

What are the coldest months in Kapowsin?

The coldest time of the year is December, with temperatures averaging a high of 41.2°F (5.1°C) and a low of 31.1°F (-0.5°C).

How cold does it get in Kapowsin in December?

In December, the average high-temperature and low-temperature are 41.2°F (5.1°C) and 31.1°F (-0.5°C) respectively.

What is the average humidity in December in Kapowsin?

In Kapowsin, Washington, the average relative humidity in December is 87%.

What is the wettest month in Kapowsin?

December is the month with the most rainfall in Kapowsin, Washington. Rain falls for 18.6 days and accumulates 5.71" (145mm) of precipitation.

How many days does it rain in December in Kapowsin?

In Kapowsin, Washington, during December, the rain falls for 18.6 days and regularly aggregates up to 5.71" (145mm) of precipitation.

How many days does it snow in December in Kapowsin?

In Kapowsin, Washington, during December, snow falls for 3.8 days and regularly aggregates up to 1.54" (39mm) of snow.

What is the month with the shortest days in Kapowsin?

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

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

In Kapowsin, the average day length in December is 8h and 35min.

What time are sunrise and sunset in December in Kapowsin?

In December, on the first day of the month, sunrise is at 7:34 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:54 am and sunset at 4:30 pm PST.

What is the month with the least sunshine in Kapowsin?

With an average of 4.1h of sunshine, December has the least sunshine of the year.

How long on average sun shines in December in Kapowsin?

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

What are the months with the lowest UV index in Kapowsin?

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

What is the UV index intensity in December in Kapowsin?

In Kapowsin, Washington, the average daily maximum UV index in December is 2. A UV Index 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
Kapowsin, WA

Average temperature in December - Kapowsin, WA
  • Average high temperature in December: 41.2°F

The warmest month (with the highest average high temperature) is August (75°F).
The month with the lowest average high temperature is December (41.2°F).

  • Average low temperature in December: 31.1°F

The month with the highest average low temperature is August (49.5°F).
The coldest month (with the lowest average low temperature) is December (31.1°F).

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Average pressure in December
Kapowsin, WA

Average pressure in December - Kapowsin, WA
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

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Average wind speed in December
Kapowsin, WA

Average wind speed in December - Kapowsin, WA
  • Average wind speed in December: 4.8mph

The windiest month (with the highest average wind speed) is January (5mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

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Average humidity in December
Kapowsin, WA

Average humidity in December - Kapowsin, WA
  • Average humidity in December: 87%

The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is July (70%).

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Average rainfall in December
Kapowsin, WA

Average rainfall in December - Kapowsin, WA
  • Average rainfall in December: 5.71"

The wettest month (with the highest rainfall) is December (5.71").
The driest month (with the least rainfall) is July (0.43").

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Average rainfall days in December
Kapowsin, WA

Average rainfall days in December - Kapowsin, WA
  • Average rainfall days in December: 18.6 days

The month with the highest number of rainy days is March (20.2 days).
The month with the least rainy days is August (6.1 days).

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Average snowfall in December
Kapowsin, WA

Average snowfall in December - Kapowsin, WA
  • Average snowfall in December: 1.54"

The month with the highest snowfall is February (4.84").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Kapowsin, WA

Average snowfall days in December - Kapowsin, WA
  • Average snowfall days in December: 3.8 days

The month with the highest number of snowfall days is February (6 days).
The months with the least snowfall days are June, July, August and October (0 days).

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

Average daylight in December / Average sunshine in December - Kapowsin, 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 1min

The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).

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Average sunshine days in December
Kapowsin, WA

Average sunshine days in December - Kapowsin, WA
  • Average sunshine days in December: 10.6 days

The month with the most sunshine days is August (22.9 days).
The month with the least sunshine days is February (8 days).

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Average UV index in December
Kapowsin, WA

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

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

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Average cloud cover in December
Kapowsin, WA

Average cloud cover in December - Kapowsin, WA
  • Average cloud cover in December: 57

The months with the most cloud cover are January, February, March and December (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in December
Kapowsin, WA

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

The months with the highest visibility are April, May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, November and December (4mi).

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Kapowsin, Washington, USA

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