December weather forecast
Elk River, ID

Share

Weather in December

December, the first month of the winter in Elk River, is still a cold month, with temperature in the range of an average high of 33.1°F (0.6°C) and an average low of 21.9°F (-5.6°C).

Temperature

With its high average temperature of 33.1°F (0.6°C) and a low of 21.9°F (-5.6°C), December is regarded as the coldest month.

Humidity

In Elk River, Idaho, the average relative humidity in December is 88%.

Rainfall

In Elk River, during December, the rain falls for 12.6 days and regularly aggregates up to 1.57" (40mm) of precipitation. In Elk River, during the entire year, the rain falls for 147.4 days and collects up to 14.72" (374mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. The month with the most snowfall in Elk River is December, when snow falls for 9.7 days and typically aggregates up to 3.74" (95mm) of snow.

Daylight

December has the shortest days of the year, with an average of 8h and 36min of daylight.
On the first day of December, sunrise is at 7:09 am and sunset at 3:58 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:06 pm PST.

Sunshine

The months with the least sunshine are January and December, with an average of 4.1h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 1 during December leads to these advisories:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

The coldest period is December, when temperatures fluctuate between an average high of 33.1°F (0.6°C) and a low of 21.9°F (-5.6°C).

How cold is it in December?

December temperatures in Elk River vary between a high-temperature of 33.1°F (0.6°C) and a low-temperature of 21.9°F (-5.6°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 84.2°F (29°C).

What is the average humidity in December?

The average relative humidity in December is 88%.

How many days does it rain in December?

In December, the rain falls for 12.6 days. Throughout December, 1.57" (40mm) of precipitation is accumulated.

When does it snow the most?

The month with the most snowfall is December, when snow falls for 9.7 days and typically aggregates up to 3.74" (95mm) of snow.

How much does it snow in Elk River in December?

In December, it is snowing for 9.7 days. Throughout December, 3.74" (95mm) of snow is accumulated.

What is the month with the shortest days?

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

How many hours of daylight does Elk River have in December?

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

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:09 am and sunset at 3:58 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:06 pm PST.

What is the month with the least sunshine?

The months with the least sunshine are January and December, with an average of 4.1h of sunshine.

How long on average sun shines in December?

In Elk River, the average sunshine duration in December is 4.1h.

What are the months with the lowest UV index?

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

What is the UV index reading in December?

In Elk River, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents 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
Elk River, ID

Average temperature in December - Elk River, ID
  • Average high temperature in December: 33.1°F

The warmest month (with the highest average high temperature) is August (83.5°F).
The month with the lowest average high temperature is December (33.1°F).

  • Average low temperature in December: 21.9°F

The month with the highest average low temperature is August (51.3°F).
The coldest month (with the lowest average low temperature) is December (21.9°F).

Average pressure in December
Elk River, ID

Average pressure in December - Elk River, ID
  • Average pressure in December: 30.18"Hg

The month with the highest atmospheric pressure is January (30.2"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).

Average wind speed in December
Elk River, ID

Average wind speed in December - Elk River, ID
  • Average wind speed in December: 3.8mph

The windiest month (with the highest average wind speed) is April (4.5mph).
The calmest month (with the lowest average wind speed) is September (3.6mph).

Average humidity in December
Elk River, ID

Average humidity in December - Elk River, ID
  • Average humidity in December: 88%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (48%).

Average rainfall in December
Elk River, ID

Average rainfall in December - Elk River, ID
  • Average rainfall in December: 1.57"

The wettest month (with the highest rainfall) is January (1.69").
The driest month (with the least rainfall) is August (0.35").

Average rainfall days in December
Elk River, ID

Average rainfall days in December - Elk River, ID
  • Average rainfall days in December: 12.6 days

The month with the highest number of rainy days is March (17.7 days).
The month with the least rainy days is August (4.9 days).

Average snowfall in December
Elk River, ID

Average snowfall in December - Elk River, ID
  • Average snowfall in December: 3.74"

The month with the highest snowfall is December (3.74").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Elk River, ID

Average snowfall days in December - Elk River, ID
  • Average snowfall days in December: 9.7 days

The month with the highest number of snowfall days is December (9.7 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in December /
Average sunshine in December
Elk River, ID

Average daylight in December / Average sunshine in December - Elk River, 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 1min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 4h and 6min).

Average sunshine days in December
Elk River, ID

Average sunshine days in December - Elk River, ID
  • Average sunshine days in December: 12.8 days

The month with the most sunshine days is August (23.5 days).
The month with the least sunshine days is February (9.1 days).

Average UV index in December
Elk River, ID

Average UV index in December - Elk River, ID
  • 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 January, February, November and December (UV index 1).

Average cloud cover in December
Elk River, ID

Average cloud cover in December - Elk River, ID
  • Average cloud cover in December: 57

The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 13).

Average visibility in December
Elk River, ID

Average visibility in December - Elk River, ID
  • Average visibility in December: 4mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).

Elk River, Idaho, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location