December weather forecast
Moscow, ID

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Clean paths and scenic, neat lawns surrounding lone red barn in a field in Moscow, Idaho
Clean paths and scenic, neat lawns surrounding lone red barn in a field in Moscow, Idaho

Weather in December

December showers Moscow in a wintry ambiance, celebrating the holiday spirit with cooler temperatures and a flurry of snow. The city is cloaked in a winter veil, with extended hours of darkness painting a twilight scene. The wind contributes to the chill and occasional snowfall graces the city skylines. The considerable drop in temperatures makes staying indoors a popular choice, especially when temperatures tumble between 24.1°F (-4.4°C) and 34°F (1.1°C), culminating in the year on a wintry high.

Temperature

December, with average temperatures reaching a high of 34°F (1.1°C) and a low of 24.1°F (-4.4°C), is the coldest month.

Humidity

In Moscow, the average relative humidity in December is 86%.

Rainfall

The month with the most rainfall in Moscow is December, when the rain falls for 11.6 days and typically aggregates up to 2.68" (68mm) of precipitation.

Snowfall

Months with snowfall in Moscow are January through May, September through December. In Moscow, during December, snow falls for 14.1 days and regularly aggregates up to 11.14" (283mm) of snow. Throughout the year, there are 60.2 snowfall days, and 47.24" (1200mm) of snow is accumulated.

Daylight

With an average of 8h and 36min of daylight, December has the shortest days of the year in Moscow, Idaho.
On the first day of the month, sunrise is at 7:12 am and sunset at 4:01 pm. On the last day of December, in Moscow, sunrise is at 7:32 am and sunset at 4:10 pm PST.

Sunshine

The months with the least sunshine in Moscow are January, February and December, with an average of 4.5h of sunshine.

UV index

In Moscow, Idaho, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: A typical high UV index of 2 in December suggests the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Resources | Updated: Feb 12, 2024 | Published by: Weather Atlas

Frequently asked questions

What is the coldest time of year in Moscow?

The month of December sees the average lowest temperatures in Moscow, reaching 34°F (1.1°C) at the peak and 24.1°F (-4.4°C) at the low.

How cold is it in Moscow in December?

An average high-temperature, in December, in Moscow, is 34°F (1.1°C) and the average low-temperature is 24.1°F (-4.4°C). The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 82.4°F (28°C).

What is the average humidity in December in Moscow?

In December, the average relative humidity in Moscow, Idaho, is 86%.

What is the wettest month in Moscow?

The month with the most rainfall in Moscow, Idaho, is December, when the rain falls for 11.6 days and typically aggregates up to 2.68" (68mm) of precipitation.

How many days does it rain in December in Moscow?

In December, the rain falls for 11.6 days. Throughout December, 2.68" (68mm) of precipitation is accumulated.

How many days does it snow in December in Moscow?

In Moscow, Idaho, in December, during 14.1 snowfall days, 11.14" (283mm) of snow is typically accumulated.

What is the month with the shortest days in Moscow?

With an average of 8h and 36min of daylight, December has the shortest days of the year in Moscow.

How many hours of daylight does Moscow have in December?

In December, the average day length in Moscow is 8h and 37min.

What time are sunrise and sunset in December in Moscow?

In December, on the first day of the month, sunrise is at 7:12 am and sunset at 4:01 pm. On the last day of the month, in Moscow, Idaho, sunrise is at 7:32 am and sunset at 4:10 pm PST.

What is the month with the least sunshine in Moscow?

The months with the least sunshine in Moscow, Idaho, are January, February and December, with an average of 4.5h of sunshine.

How many hours of sunshine does Moscow have in December?

The average sunshine duration in December in Moscow, Idaho, is 4.5h.

What is the UV index intensity in December in Moscow?

The average daily maximum UV index in December in Moscow, Idaho, is 2. A UV Index value of 2, and less, symbolizes a low health risk 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
Moscow, ID

Average temperature in December - Moscow, ID
  • Average high temperature in December: 34°F

The warmest month (with the highest average high temperature) is August (83.7°F).
The month with the lowest average high temperature is December (34°F).

  • Average low temperature in December: 24.1°F

The month with the highest average low temperature is August (58.1°F).
The coldest month (with the lowest average low temperature) is December (24.1°F).

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Average pressure in December
Moscow, ID

Average pressure in December - Moscow, ID
  • Average pressure in December: 30.17"Hg

The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

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Average wind speed in December
Moscow, ID

Average wind speed in December - Moscow, ID
  • Average wind speed in December: 5.6mph

The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are July, August and September (4.8mph).

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Average humidity in December
Moscow, ID

Average humidity in December - Moscow, ID
  • Average humidity in December: 86%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (40%).

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Average rainfall in December
Moscow, ID

Average rainfall in December - Moscow, ID
  • Average rainfall in December: 2.68"

The wettest month (with the highest rainfall) is December (2.68").
The driest months (with the least rainfall) are July and August (0.47").

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Average rainfall days in December
Moscow, ID

Average rainfall days in December - Moscow, ID
  • Average rainfall days in December: 11.6 days

The month with the highest number of rainy days is April (18.1 days).
The months with the least rainy days are July and August (5.9 days).

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Average snowfall in December
Moscow, ID

Average snowfall in December - Moscow, ID
  • Average snowfall in December: 11.14"

The month with the highest snowfall is January (12.56").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Moscow, ID

Average snowfall days in December - Moscow, ID
  • Average snowfall days in December: 14.1 days

The month with the highest number of snowfall days is December (14.1 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
Moscow, ID

Average daylight in December / Average sunshine in December - Moscow, ID
  • 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 3min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 4h and 30min).

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Average sunshine days in December
Moscow, ID

Average sunshine days in December - Moscow, ID
  • Average sunshine days in December: 11.8 days

The month with the most sunshine days is July (23.3 days).
The month with the least sunshine days is February (9.2 days).

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Average UV index in December
Moscow, ID

Average UV index in December - Moscow, ID
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).

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Average cloud cover in December
Moscow, ID

Average cloud cover in December - Moscow, ID
  • Average cloud cover in December: 52

The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 12).

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Average visibility in December
Moscow, ID

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

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 and December (4mi).

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Moscow, Idaho, USA

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