December weather forecast
Coeur d'Alene, ID

Rocks, trees, and mountains on the shores of Lake Coeur d
Rocks, trees, and mountains on the shores of Lake Coeur d'Alene, in Idaho

Weather in December

The first month of the winter, December, is also a subzero cold month in Coeur d'Alene, Idaho, with temperature in the range of an average high of 31.3°F (-0.4°C) and an average low of 20.8°F (-6.2°C).

Temperature

The coldest month is December, with an average high-temperature of 31.3°F (-0.4°C) and an average low-temperature of 20.8°F (-6.2°C).

Humidity

The average relative humidity in December is 90%.

Rainfall

In Coeur d'Alene, it is raining for 10.4 days, with typically 2.8" (71mm) of accumulated precipitation. Throughout the year, in Coeur d'Alene, there are 139.7 rainfall days, and 22.2" (564mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Coeur d'Alene are January through May, September through December. In Coeur d'Alene, in December, during 16.5 snowfall days, 12.72" (323mm) of snow is typically accumulated. Throughout the year, there are 71.6 snowfall days, and 56.26" (1429mm) of snow is accumulated.

Daylight

The month with the shortest days in Coeur d'Alene is December, with an average of 8h and 30min of daylight.
On the first day of December in Coeur d'Alene, sunrise is at 7:14 am and sunset at 3:57 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 4:05 pm PST.

Sunshine

The month with the least sunshine in Coeur d'Alene, Idaho, is December, with an average of 3.3h of sunshine.

UV index

February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Coeur d'Alene. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The daily maximum UV index of 1 in December interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the coldest month in Coeur d'Alene?

The coldest month in Coeur d'Alene, Idaho, is December, with an average high-temperature of 31.3°F (-0.4°C) and an average low-temperature of 20.8°F (-6.2°C).

What is the average humidity in December in Coeur d'Alene?

In December, the average relative humidity in Coeur d'Alene is 90%.

How many days does it rain in December in Coeur d'Alene?

In Coeur d'Alene, Idaho, in December, during 10.4 rainfall days, 2.8" (71mm) of precipitation is typically accumulated.

How much does it snow in Coeur d'Alene in December?

In Coeur d'Alene, in December, during 16.5 snowfall days, 12.72" (323mm) of snow is typically accumulated.

What is the month with the shortest days in Coeur d'Alene?

December has the shortest days of the year in Coeur d'Alene, with an average of 8h and 30min of daylight.

How many hours of daylight does Coeur d'Alene have in December?

The average day length in December in Coeur d'Alene is 8h and 30min.

When is the sunrise / sunset in December in Coeur d'Alene?

On the first day of December in Coeur d'Alene, sunrise is at 7:14 am and sunset at 3:57 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 4:05 pm PST.

What is the month with the least sunshine in Coeur d'Alene?

The month with the least sunshine in Coeur d'Alene, Idaho, is December, with an average of 3.3h of sunshine.

How many hours of sunshine does Coeur d'Alene have in December?

The average sunshine duration in December in Coeur d'Alene, Idaho, is 3.3h.

What is the month with the lowest UV index in Coeur d'Alene?

The months with the lowest UV index in Coeur d'Alene, Idaho, are February, November and December, with an average maximum UV index of 1.

What is the UV index reading in December in Coeur d'Alene?

In December, the average daily maximum UV index in Coeur d'Alene is 1. A UV Index of 2, and less, symbolizes 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
Coeur d'Alene, ID

Average temperature in December - Coeur d
  • Average high temperature in December: 31.3°F

The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (31.3°F).

  • Average low temperature in December: 20.8°F

The month with the highest average low temperature is August (51.6°F).
The coldest month (with the lowest average low temperature) is December (20.8°F).

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Average pressure in December
Coeur d'Alene, ID

Average pressure in December - Coeur d
  • 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 August (29.91"Hg).

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Average wind speed in December
Coeur d'Alene, ID

Average wind speed in December - Coeur d
  • Average wind speed in December: 3.7mph

The windiest month (with the highest average wind speed) is April (5.1mph).
The calmest month (with the lowest average wind speed) is December (3.7mph).

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Average humidity in December
Coeur d'Alene, ID

Average humidity in December - Coeur d
  • Average humidity in December: 90%

The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (48%).

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Average rainfall in December
Coeur d'Alene, ID

Average rainfall in December - Coeur d
  • Average rainfall in December: 2.8"

The wettest month (with the highest rainfall) is January (3.27").
The driest months (with the least rainfall) are July and August (0.43").

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Average rainfall days in December
Coeur d'Alene, ID

Average rainfall days in December - Coeur d
  • Average rainfall days in December: 10.4 days

The month with the highest number of rainy days is March (17.5 days).
The month with the least rainy days is August (5.4 days).

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Average snowfall in December
Coeur d'Alene, ID

Average snowfall in December - Coeur d
  • Average snowfall in December: 12.72"

The month with the highest snowfall is January (16.57").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Coeur d'Alene, ID

Average snowfall days in December - Coeur d
  • Average snowfall days in December: 16.5 days

The month with the highest number of snowfall days is December (16.5 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
Coeur d'Alene, ID

Average daylight in December / Average sunshine in December - Coeur d
  • Average daylight in December: 8h and 30min

The month with the longest days is June (Average daylight: 15h and 56min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in December: 3h and 18min

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).

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Average sunshine days in December
Coeur d'Alene, ID

Average sunshine days in December - Coeur d
  • Average sunshine days in December: 10.2 days

The month with the most sunshine days is July (23.8 days).
The month with the least sunshine days is February (8.6 days).

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Average UV index in December
Coeur d'Alene, ID

Average UV index in December - Coeur d
  • 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 February, November and December (UV index 1).

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Average cloud cover in December
Coeur d'Alene, ID

Average cloud cover in December - Coeur d
  • Average cloud cover in December: 65

The months with the most cloud cover are January and December (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 13).

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Average visibility in December
Coeur d'Alene, ID

Average visibility in December - Coeur d
  • Average visibility in December: 4mi

The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).

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