December weather forecast and climate
Rathdrum, ID

Weather in December

The first month of the winter, December, is also a subzero cold month in Rathdrum, Idaho, with average temperature ranging between min 21.2°F (-6°C) and max 31.3°F (-0.4°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 21.2°F (-6°C).

Humidity

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

Rainfall

In Rathdrum, in December, it is raining for 10.8 days, with typically 3.15" (80mm) of accumulated precipitation. In Rathdrum, Idaho, during the entire year, the rain falls for 141.2 days and collects up to 22.6" (574mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. In December, it is snowing for 16.9 days. Throughout December, 13.66" (347mm) of snow is accumulated. Throughout the year, there are 71.8 snowfall days, and 56.54" (1436mm) of snow is accumulated.

Daylight

With an average of 8.5h of daylight, December has the shortest days of the year.

Sunshine

The month with the least sunshine in Rathdrum, Idaho, is December, with an average of 3.4h of sunshine.

UV index

February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 1 in December interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 Rathdrum?

With an average high-temperature of 31.3°F (-0.4°C) and an average low-temperature of 21.2°F (-6°C), December is the coldest month in Rathdrum.

What is the average humidity in December in Rathdrum?

In December, the average relative humidity is 90%.

How many days does it rain in December in Rathdrum?

In December, in Rathdrum, Idaho, the rain falls for 10.8 days. Throughout December, 3.15" (80mm) of precipitation is accumulated.

How much does it snow in Rathdrum in December?

In Rathdrum, in December, snow falls for 16.9 days, with typically accumulated 13.66" (347mm) of snow.

What is the month with the shortest days in Rathdrum?

The month with the shortest days in Rathdrum, Idaho, is December, with an average of 8.5h of daylight.

How many hours of daylight does Rathdrum have in December?

In December, the average length of the day is 8.5h.

What is the month with the least sunshine in Rathdrum?

With an average of 3.4h of sunshine, December has the least sunshine of the year in Rathdrum.

How long on average sun shines in December in Rathdrum?

In December, the average sunshine in Rathdrum, Idaho, is 3.4h.

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

Months with the lowest UV index are February, November and December, with an average maximum UV index of 1.

What is the UV index reading in December in Rathdrum?

In December, the average daily maximum UV index in Rathdrum, Idaho, is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV rays.

Average temperature in December
Rathdrum, ID

Average temperature in December - Rathdrum, ID
  • 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: 21.2°F

The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is December (21.2°F).

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Average pressure in December
Rathdrum, ID

Average pressure in December - Rathdrum, ID
  • Average pressure in December: 30.17"

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

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Average wind speed in December
Rathdrum, ID

Average wind speed in December - Rathdrum, ID
  • Average wind speed in December: 3.9mph

The windiest month (with the highest average wind speed) is April (5mph).
The calmest month (with the lowest average wind speed) is December (3.9mph).

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Average humidity in December
Rathdrum, ID

Average humidity in December - Rathdrum, ID
  • 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
Rathdrum, ID

Average rainfall in December - Rathdrum, ID
  • Average rainfall in December: 3.15"

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
Rathdrum, ID

Average rainfall days in December - Rathdrum, ID
  • Average rainfall days in December: 10.8 days

The month with the highest number of rainy days is March (17.5 days).
The month with the least rainy days is August (5.6 days).

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Average snowfall in December
Rathdrum, ID

Average snowfall in December - Rathdrum, ID
  • Average snowfall in December: 13.66"

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

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Average snowfall days in December
Rathdrum, ID

Average snowfall days in December - Rathdrum, ID
  • Average snowfall days in December: 16.9 days

The month with the highest number of snowfall days is December (16.9 days).
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
Rathdrum, ID

Average daylight in December / Average sunshine in December - Rathdrum, ID
  • Average daylight in December: 8.5h

The month with the longest days is June (Average daylight: 16h).
The month with the shortest days is December (Average daylight: 8.5h).

  • Average sunshine in December: 3.4h

The month with the most sunshine is August (Average sunshine: 11.9h).
The month with the least sunshine is December (Average sunshine: 3.4h).

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Average sunshine days in December
Rathdrum, ID

Average sunshine days in December - Rathdrum, ID
  • Average sunshine days in December: 9.9 days

The month with the most sunshine days is July (23.9 days).
The month with the least sunshine days is February (8.6 days).

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Average UV index in December
Rathdrum, ID

Average UV index in December - Rathdrum, ID
  • Average UV index in December: 1

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

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Average cloud cover in December
Rathdrum, ID

Average cloud cover in December - Rathdrum, ID
  • Average cloud cover in December: 64

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

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Average visibility in December
Rathdrum, ID

Average visibility in December - Rathdrum, ID
  • Average visibility in December: 4mi

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

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