December weather forecast
Kalaloch, WA

Weather in December

December, the first month of the winter in Kalaloch, is also a frosty month, with an average temperature ranging between min 39.2°F (4°C) and max 45.1°F (7.3°C).

Temperature

December is the coldest month, with an average high-temperature of 45.1°F (7.3°C) and an average low-temperature of 39.2°F (4°C).

Humidity

The months with the highest humidity in Kalaloch are January, November and December, with an average relative humidity of 84%.

Rainfall

In Kalaloch, during 18.5 rainfall days, 6.1" (155mm) of precipitation is typically accumulated. In Kalaloch, during the entire year, the rain falls for 169.3 days and collects up to 37.83" (961mm) of precipitation.

Snowfall

January through March and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.5 snowfall days, it receives 0.16" (4mm) of snow. In Kalaloch, during the entire year, snow falls for 3.9 days and aggregates up to 1.5" (38mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 31min of daylight.
On the first day of December in Kalaloch, sunrise is at 7:44 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 4:35 pm PST.

Sunshine

In Kalaloch, the average sunshine in December is 4.1h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Kalaloch?

The coldest month is December, with an average high-temperature of 45.1°F (7.3°C) and an average low-temperature of 39.2°F (4°C).

What is the temperature in December in Kalaloch?

In December, the average high-temperature is 45.1°F (7.3°C), and the average low-temperature is 39.2°F (4°C).

What are the most humid months in Kalaloch?

The months with the highest humidity are January, November and December, with an average relative humidity of 84%.

What is the average humidity in December in Kalaloch?

The average relative humidity in December is 84%.

How much does it rain in Kalaloch in December?

In Kalaloch, Washington, in December, during 18.5 rainfall days, 6.1" (155mm) of precipitation is typically accumulated.

When does it start to snow in Kalaloch?

December is the first month it typically snows in Kalaloch, Washington. Throughout December, in the average 0.5 snowfall days, it receives 0.16" (4mm) of snow.

What is the month with the shortest days in Kalaloch?

The month with the shortest days is December, with an average of 8h and 31min of daylight.

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

The average day length in December in Kalaloch, Washington, is 8h and 31min.

When are sunrise and sunset in December in Kalaloch?

In December, on the first day of the month, sunrise is at 7:44 am and sunset at 4:28 pm. On the last day of the month, in Kalaloch, sunrise is at 8:05 am and sunset at 4:35 pm PST.

How many hours of sunshine does Kalaloch have in December?

The average sunshine duration in December in Kalaloch, Washington, is 4.1h.

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

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

What is the UV index intensity in December in Kalaloch?

In Kalaloch, Washington, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Kalaloch, WA

Average temperature in December - Kalaloch, WA
  • Average high temperature in December: 45.1°F

The warmest month (with the highest average high temperature) is August (65.8°F).
The month with the lowest average high temperature is December (45.1°F).

  • Average low temperature in December: 39.2°F

The month with the highest average low temperature is August (52.5°F).
The coldest month (with the lowest average low temperature) is February (38.7°F).

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Average pressure in December
Kalaloch, WA

Average pressure in December - Kalaloch, WA
  • Average pressure in December: 30.03"Hg

The month with the highest atmospheric pressure is July (30.08"Hg).
The month with the lowest atmospheric pressure is March (29.99"Hg).

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Average wind speed in December
Kalaloch, WA

Average wind speed in December - Kalaloch, WA
  • Average wind speed in December: 8.8mph

The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in December
Kalaloch, WA

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

The months with the highest relative humidity are January, November and December (84%).
The month with the lowest relative humidity is May (80%).

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Average rainfall in December
Kalaloch, WA

Average rainfall in December - Kalaloch, WA
  • Average rainfall in December: 6.1"

The wettest month (with the highest rainfall) is January (6.89").
The driest month (with the least rainfall) is July (0.51").

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Average rainfall days in December
Kalaloch, WA

Average rainfall days in December - Kalaloch, WA
  • Average rainfall days in December: 18.5 days

The month with the highest number of rainy days is November (19.4 days).
The month with the least rainy days is August (6.8 days).

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Average snowfall in December
Kalaloch, WA

Average snowfall in December - Kalaloch, WA
  • Average snowfall in December: 0.16"

The month with the highest snowfall is February (0.59").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in December
Kalaloch, WA

Average snowfall days in December - Kalaloch, WA
  • Average snowfall days in December: 0.5 days

The month with the highest number of snowfall days is February (1.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Kalaloch, WA
  • Average daylight in December: 8h and 31min

The month with the longest days is June (Average daylight: 15h and 55min).
The month with the shortest days is December (Average daylight: 8h and 31min).

  • Average sunshine in December: 4h and 6min

The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in December
Kalaloch, WA

Average sunshine days in December - Kalaloch, WA
  • Average sunshine days in December: 10.4 days

The month with the most sunshine days is August (21.4 days).
The month with the least sunshine days is November (9.4 days).

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Average UV index in December
Kalaloch, WA

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

The months with the highest UV index are May, June, July, August and September (UV index 4).
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
Kalaloch, WA

Average cloud cover in December - Kalaloch, WA
  • Average cloud cover in December: 58

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in December
Kalaloch, WA

Average visibility in December - Kalaloch, WA
  • Average visibility in December: 6mi

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

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