December weather forecast and climate
Big Sky, MT

A beautiful view of the scenery in Big Sky, Montana, vast fields, and planted forests near the scenic mountainous region, scattered clouds above
A beautiful view of the scenery in Big Sky, Montana, vast fields, and planted forests near the scenic mountainous region, scattered clouds above

Temperature

With an average high-temperature of 29.5°F (-1.4°C) and an average low-temperature of 6.6°F (-14.1°C), December is the coldest month.

Rainfall

Throughout December, 1.4" (35.6mm) of precipitation is accumulated. During the entire year, Big Sky aggregates up to 19.9" (506.1mm) of precipitation.

Snowfall

Months with snowfall are January through July, September through December.

Daylight

December has the shortest days of the year, with an average of 8.8h of daylight.

What is the coldest month in Big Sky?

December is the coldest month, with an average high-temperature of 29.5°F (-1.4°C) and an average low-temperature of 6.6°F (-14.1°C).

What is the temperature in December in Big Sky?

In December, in Big Sky, the average high-temperature is 29.5°F (-1.4°C), and the average low-temperature is 6.6°F (-14.1°C).

How much does it rain in Big Sky in December?

During December, Big Sky regularly aggregates up to 1.4" (35.6mm) of precipitation.

How much does it snow in Big Sky in December?

During December, Big Sky regularly aggregates up to 31.4" (797.6mm) of snow.

What is the month with the shortest days in Big Sky?

The month with the shortest days is December, with an average of 8.8h of daylight.

How many hours of daylight does Big Sky have in December?

The average length of the day in December in Big Sky is 8.8h.
Average temperature in December - Big Sky, MT
  • Average high temperature in December: 29.5°F

The warmest month (with the highest average high temperature) is August (78°F).
The month with the lowest average high temperature is December (29.5°F).

  • Average low temperature in December: 6.6°F

The month with the highest average low temperature is July (40.1°F).
The coldest month (with the lowest average low temperature) is December (6.6°F).

Average rainfall in December - Big Sky, MT
  • Average rainfall in December: 1.4"

Wettest months (with the highest rainfall) are May and June (2.8").
Driest months (with the lowest rainfall) are February and March (1.2").

Average snowfall in December - Big Sky, MT
  • Average snowfall in December: 31.4"

The month with the highest snowfall is January (31.9").
The month with the lowest snowfall is August (0").

Average daylight in December - Big Sky, MT
  • Average daylight in December: 8.8h

The month with the longest days is June (Average daylight: 15.6h).
The month with shortest days is December (Average daylight: 8.8h).

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