December weather forecast
Wilborn, MT

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Weather in December

December, the first month of the winter in Wilborn, is also a subzero cold month, with an average temperature fluctuating between 13.1°F (-10.5°C) and 26.2°F (-3.2°C).

Temperature

Wilborn experiences its lowest temperatures in December, with an average peak of 26.2°F (-3.2°C) and a low of 13.1°F (-10.5°C).

Humidity

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

Rainfall

January and December are months with the least rain in Wilborn when the rain falls for 6.7 days and typically aggregates up to 0.59" (15mm) of rain.

Snowfall

Months with snowfall are January through June, September through December. In Wilborn, in December, during 13.6 snowfall days, 4.61" (117mm) of snow is typically accumulated. In Wilborn, during the entire year, snow falls for 92.7 days and aggregates up to 45.59" (1158mm) of snow.

Daylight

With an average of 8h and 36min of daylight, December has the shortest days of the year in Wilborn.
On the first day of December, sunrise is at 7:54 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 8:14 am and sunset at 4:50 pm MST.

Sunshine

January and December, with an average of 5.6h of sunshine, are months with the least sunshine.

UV index

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.
Note: In December, the UV index of 2 transforms into the following advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. It's recommended to limit sun exposure when its radiation is at its peak during midday. Enhance your sun protection with tightly woven, yet airy clothing. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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Frequently asked questions

What are the coldest months in Wilborn?

December tends to be the coldest month in Wilborn, Montana, with temperatures averaging a daily high of 26.2°F (-3.2°C) and a low of 13.1°F (-10.5°C).

How cold is December in Wilborn?

The average high-temperature and low-temperature during December are 26.2°F (-3.2°C) and 13.1°F (-10.5°C) respectively.

What is the average humidity in December in Wilborn?

The average relative humidity in December is 86%.

What is the driest month in Wilborn?

January and December are months with the least rain when the rain falls for 6.7 days and typically aggregates up to 0.59" (15mm) of rain.

How much does it rain in Wilborn in December?

In December, the rain falls for 6.7 days. Throughout December, 0.59" (15mm) of precipitation is accumulated.

How much does it snow in Wilborn in December?

In Wilborn, in December, snow falls for 13.6 days, with typically accumulated 4.61" (117mm) of snow.

What is the month with the shortest days in Wilborn?

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

How many hours of daylight does Wilborn have in December?

The average day length in December in Wilborn, Montana, is 8h and 36min.

When are sunrise and sunset in December in Wilborn?

In December, on the first day of the month, sunrise is at 7:54 am and sunset at 4:42 pm. On the last day of the month, in Wilborn, Montana, sunrise is at 8:14 am and sunset at 4:50 pm MST.

What are the months with the least sunshine in Wilborn?

The months with the least sunshine are January and December, with an average of 5.6h of sunshine.

How long on average sun shines in December in Wilborn?

The average sunshine duration in December in Wilborn, Montana, is 5.6h.

What is the UV index intensity in December in Wilborn?

In Wilborn, Montana, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unsafe exposure to Sun's UV rays.
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
Wilborn, MT

Average temperature in December - Wilborn, MT
  • Average high temperature in December: 26.2°F

The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is December (26.2°F).

  • Average low temperature in December: 13.1°F

The month with the highest average low temperature is August (49.3°F).
The coldest month (with the lowest average low temperature) is December (13.1°F).

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Average pressure in December
Wilborn, MT

Average pressure in December - Wilborn, MT
  • Average pressure in December: 30.16"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in December
Wilborn, MT

Average wind speed in December - Wilborn, MT
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is November (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in December
Wilborn, MT

Average humidity in December - Wilborn, MT
  • Average humidity in December: 86%

The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are July and August (48%).

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Average rainfall in December
Wilborn, MT

Average rainfall in December - Wilborn, MT
  • Average rainfall in December: 0.59"

The wettest month (with the highest rainfall) is June (2.6").
The driest months (with the least rainfall) are January and December (0.59").

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Average rainfall days in December
Wilborn, MT

Average rainfall days in December - Wilborn, MT
  • Average rainfall days in December: 6.7 days

The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is January (4.8 days).

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Average snowfall in December
Wilborn, MT

Average snowfall in December - Wilborn, MT
  • Average snowfall in December: 4.61"

The month with the highest snowfall is February (7.13").
The months with the least snowfall are July and August (0").

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Average snowfall days in December
Wilborn, MT

Average snowfall days in December - Wilborn, MT
  • Average snowfall days in December: 13.6 days

The month with the highest number of snowfall days is February (15.1 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
Wilborn, MT

Average daylight in December / Average sunshine in December - Wilborn, MT
  • 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: 5h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).

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Average sunshine days in December
Wilborn, MT

Average sunshine days in December - Wilborn, MT
  • Average sunshine days in December: 16.5 days

The month with the most sunshine days is July (18.8 days).
The month with the least sunshine days is May (10.6 days).

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Average UV index in December
Wilborn, MT

Average UV index in December - Wilborn, MT
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is February (UV index 1).

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Average cloud cover in December
Wilborn, MT

Average cloud cover in December - Wilborn, MT
  • Average cloud cover in December: 46

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 14).

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Average visibility in December
Wilborn, MT

Average visibility in December - Wilborn, MT
  • Average visibility in December: 5mi

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, February and December (5mi).

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Wilborn, Montana, USA

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