December weather forecast
Spencer, ID

Weather in December

The first month of the winter, December, is also a subzero cold month in Spencer, Idaho, with average temperature ranging between max 22.3°F (-5.4°C) and min 6.8°F (-14°C).

Temperature

December is the coldest month, with an average high-temperature of 22.3°F (-5.4°C) and an average low-temperature of 6.8°F (-14°C).

Humidity

In December, the average relative humidity in Spencer is 92%.

Rainfall

In Spencer, Idaho, during December, the rain falls for 5.4 days and regularly aggregates up to 1.97" (50mm) of precipitation. Throughout the year, there are 106.1 rainfall days, and 20.83" (529mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Spencer are January through July, September through December. In Spencer, in December, during 23 snowfall days, 16.5" (419mm) of snow is typically accumulated. In Spencer, during the entire year, snow falls for 138.1 days, and aggregates up to 107.64" (2734mm) of snow.

Daylight

December has the shortest days of the year in Spencer, with an average of 8.9h of daylight.

Sunshine

In December, the average sunshine is 4.2h.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Spencer. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: In December, the average maximum UV index of 1 translate into the following recommendations:
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.
[Resources]

FAQ

What is the coldest month in Spencer?

December is the coldest month in Spencer, with an average high-temperature of 22.3°F (-5.4°C) and an average low-temperature of 6.8°F (-14°C).

What is the average humidity in December in Spencer?

The average relative humidity in December is 92%.

How much does it rain in Spencer in December?

In Spencer, in December, it is raining for 5.4 days, with typically 1.97" (50mm) of accumulated precipitation.

How much does it snow in Spencer in December?

In December, in Spencer, Idaho, it is snowing for 23 days. Throughout December, 16.5" (419mm) of snow is accumulated.

What is the month with the shortest days in Spencer?

December has the shortest days of the year, with an average of 8.9h of daylight.

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

In December, the average length of the day in Spencer is 8.9h.

How many hours of sunshine does Spencer have in December?

In Spencer, the average sunshine in December is 4.2h.

What are the months with the lowest UV index in Spencer?

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

How high is the UV index in December in Spencer?

In December, the average daily maximum UV index in Spencer is 1. A UV Index reading of 2, and below, represents a low health risk from the exposure to the Sun's UV radiation.

Average temperature in December
Spencer, ID

Average temperature in December - Spencer, ID
  • Average high temperature in December: 22.3°F

The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is December (22.3°F).

  • Average low temperature in December: 6.8°F

The month with the highest average low temperature is August (46.6°F).
The coldest months (with the lowest average low temperature) are January and December (6.8°F).

[Resources]

Average pressure in December
Spencer, ID

Average pressure in December - Spencer, ID
  • Average pressure in December: 30.24"

The month with the highest atmospheric pressure is January (30.26").
The month with the lowest atmospheric pressure is June (29.92").

[Resources]

Average wind speed in December
Spencer, ID

Average wind speed in December - Spencer, ID
  • Average wind speed in December: 4.5mph

The windiest month (with the highest average wind speed) is June (6.3mph).
The calmest month (with the lowest average wind speed) is January (4.4mph).

[Resources]

Average humidity in December
Spencer, ID

Average humidity in December - Spencer, ID
  • Average humidity in December: 92%

Months with the highest relative humidity are January and February (94%).
The month with the lowest relative humidity is August (47%).

[Resources]

Average rainfall in December
Spencer, ID

Average rainfall in December - Spencer, ID
  • Average rainfall in December: 1.97"

The wettest month (with the highest rainfall) is February (2.64").
The driest month (with the least rainfall) is July (0.47").

[Resources]

Average rainfall days in December
Spencer, ID

Average rainfall days in December - Spencer, ID
  • Average rainfall days in December: 5.4 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (3.8 days).

[Resources]

Average snowfall in December
Spencer, ID

Average snowfall in December - Spencer, ID
  • Average snowfall in December: 16.5"

The month with the highest snowfall is January (19.84").
The month with the least snowfall is August (0").

[Resources]

Average snowfall days in December
Spencer, ID

Average snowfall days in December - Spencer, ID
  • Average snowfall days in December: 23 days

The month with the highest number of snowfall days is December (23 days).
The month with the least snowfall days is August (0 days).

[Resources]

Average daylight in December /
Average sunshine in December
Spencer, ID

Average daylight in December / Average sunshine in December - Spencer, ID
  • Average daylight in December: 8.9h

The month with the longest days is June (Average daylight: 15.5h).
The month with the shortest days is December (Average daylight: 8.9h).

  • Average sunshine in December: 4.2h

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is January (Average sunshine: 3.8h).

[Resources]

Average sunshine days in December
Spencer, ID

Average sunshine days in December - Spencer, ID
  • Average sunshine days in December: 7.7 days

The month with the most sunshine days is July (21.2 days).
The month with the least sunshine days is February (5.9 days).

[Resources]

Average UV index in December
Spencer, ID

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

Months with the highest UV index are June and July (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 1).

[Resources]

Average cloud cover in December
Spencer, ID

Average cloud cover in December - Spencer, ID
  • Average cloud cover in December: 61

The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 13).

[Resources]

Average visibility in December
Spencer, ID

Average visibility in December - Spencer, ID
  • Average visibility in December: 3mi

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

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location