December weather forecast
Bone, ID

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Weather in December

December, the first month of the winter in Bone, is still a freezing cold month, with temperature in the range of an average high of 27°F (-2.8°C) and an average low of 14.4°F (-9.8°C).

Temperature

The lowest temperatures are recorded in December, with averages reaching a high of 27°F (-2.8°C) and a low of 14.4°F (-9.8°C).

Humidity

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

Rainfall

In December, the rain falls for 5.3 days. Throughout December, 0.98" (25mm) of precipitation is accumulated. In Bone, during the entire year, the rain falls for 101.4 days and collects up to 12.72" (323mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. In December, in Bone, Idaho, it is snowing for 16.9 days. Throughout December, 7.28" (185mm) of snow is accumulated. In Bone, Idaho, during the entire year, snow falls for 85.8 days and aggregates up to 40.94" (1040mm) of snow.

Daylight

December has the shortest days of the year in Bone, with an average of 9h and 0min of daylight.
On the first day of December in Bone, sunrise is at 7:40 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:59 am and sunset at 5:01 pm MST.

Sunshine

In December, the average sunshine in Bone is 4.9h.

UV index

The months with the lowest UV index in Bone are January, February and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.
Note: The UV index of 1 in December translates into these instructions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
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Frequently asked questions

What are the coldest months in Bone?

December is Bone's coldest month, registering average high temperatures of 27°F (-2.8°C) and lows of 14.4°F (-9.8°C).

How cold is it in Bone in December?

The high-temperature, in December, in Bone, records 27°F (-2.8°C), while the low-temperature is 14.4°F (-9.8°C). In July, 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 calculated to be 82.4°F (28°C).

What is the average humidity in December in Bone?

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

How many days does it rain in December in Bone?

In December, the rain falls for 5.3 days. Throughout December, 0.98" (25mm) of precipitation is accumulated.

How many days does it snow in December in Bone?

In Bone, Idaho, during December, snow falls for 16.9 days and regularly aggregates up to 7.28" (185mm) of snow.

What is the month with the shortest days in Bone?

December has the shortest days of the year in Bone, with an average of 9h and 0min of daylight.

How many hours of daylight does Bone have in December?

The average day length in December is 9h and 2min.

When is the sunrise / sunset in December in Bone?

In December, on the first day of the month, sunrise is at 7:40 am and sunset at 4:52 pm. On the last day of the month, in Bone, sunrise is at 7:59 am and sunset at 5:01 pm MST.

How long on average sun shines in December in Bone?

In Bone, the average sunshine duration in December is 4.9h.

When is the lowest UV index in Bone?

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

What is the UV index reading in December in Bone?

In December, the average daily maximum UV index in Bone is 1. A UV Index reading of 2, and below, represents a minimal hazard to health from exposure to the Sun's 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
Bone, ID

Average temperature in December - Bone, ID
  • Average high temperature in December: 27°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is December (27°F).

  • Average low temperature in December: 14.4°F

The month with the highest average low temperature is July (52.7°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).

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Average pressure in December
Bone, ID

Average pressure in December - Bone, ID
  • Average pressure in December: 30.26"Hg

The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in December
Bone, ID

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

The windiest month (with the highest average wind speed) is June (7.8mph).
The calmest month (with the lowest average wind speed) is January (5.5mph).

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Average humidity in December
Bone, ID

Average humidity in December - Bone, ID
  • Average humidity in December: 88%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (39%).

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Average rainfall in December
Bone, ID

Average rainfall in December - Bone, ID
  • Average rainfall in December: 0.98"

The wettest month (with the highest rainfall) is May (1.54").
The driest month (with the least rainfall) is July (0.55").

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Average rainfall days in December
Bone, ID

Average rainfall days in December - Bone, ID
  • Average rainfall days in December: 5.3 days

The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is January (3 days).

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Average snowfall in December
Bone, ID

Average snowfall in December - Bone, ID
  • Average snowfall in December: 7.28"

The month with the highest snowfall is January (8.11").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Bone, ID

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

The month with the highest number of snowfall days is December (16.9 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in December / Average sunshine in December - Bone, ID
  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

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Average sunshine days in December
Bone, ID

Average sunshine days in December - Bone, ID
  • Average sunshine days in December: 13.2 days

The month with the most sunshine days is July (19.8 days).
The month with the least sunshine days is February (10.3 days).

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Average UV index in December
Bone, ID

Average UV index in December - Bone, 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 and December (UV index 1).

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Average cloud cover in December
Bone, ID

Average cloud cover in December - Bone, ID
  • Average cloud cover in December: 53

The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 12).

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Average visibility in December
Bone, ID

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

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

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Bone, Idaho, USA

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