December weather forecast
Whitefish, MT

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Weather in December

December plunges Whitefish into the full swing of winter with a drop in temperatures, reduced daylight hours, and more frequent snowfall. The city dons a pristine white coat, with frozen landscapes echoing the quiet, serene ambiance of winter. As temperatures continue to drop and hover between 16°F (-8.9°C) and 30°F (-1.1°C), residents and visitors alike find themselves amidst the coldest month of the year. December also sees increased precipitation levels at 2" (51mm), predominantly as snow, across 15 days. The 8.4 daylight hours, further reinforce December's role as a harbinger of winter season.

Temperature

December in Whitefish heralds a minor drop in average high-temperature, sliding from November's icy 37.4°F (3°C) to a freezing cold 30.2°F (-1°C). Whitefish records an average low of 15.8°F (-9°C) throughout the nights in December.

Rainfall

In Whitefish, during December, the rain falls for 15 days and regularly aggregates up to 1.97" (50mm) of precipitation. In Whitefish, during the entire year, the rain falls for 131 days and collects up to 19.8" (503mm) of precipitation.

Daylight

December has the shortest days of the year, with an average of 8h and 24min of daylight.
On the first day of the month, sunrise is at 8:08 am and sunset at 4:44 pm. On the last day of December, sunrise is at 8:28 am and sunset at 4:52 pm MST.

Sunshine

January and December, with an average of 2h of sunshine, are months with the least sunshine.

UV index

The months with the lowest UV index are January, November 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 radiation for average individuals.
Note: In December, the maximum UV index of 1 transforms into these recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Whitefish in December?

The high-temperature, in December, in Whitefish, records 30.2°F (-1°C), while the low-temperature is 15.8°F (-9°C).

How much does it rain in Whitefish in December?

In Whitefish, Montana, during December, the rain falls for 15 days and regularly aggregates up to 1.97" (50mm) of precipitation.

What is the month with the shortest days in Whitefish?

The month with the shortest days in Whitefish is December, with an average of 8h and 24min of daylight.

How many hours of daylight does Whitefish have in December?

The average day length in December in Whitefish, Montana, is 8h and 24min.

When is the sunrise / sunset in December in Whitefish?

In December, on the first day of the month, sunrise is at 8:08 am and sunset at 4:44 pm. On the last day of the month, in Whitefish, sunrise is at 8:28 am and sunset at 4:52 pm MST.

What is the month with the least sunshine in Whitefish?

The months with the least sunshine in Whitefish, Montana, are January and December, with an average of 2h of sunshine.

How long on average sun shines in December in Whitefish?

In Whitefish, the average sunshine duration in December is 2h.

What is the month with the lowest UV index in Whitefish?

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

What is the UV index reading in December in Whitefish?

In December, the average daily maximum UV index in Whitefish, Montana, is 1. A UV Index reading of 2, and below, represents a low health threat from unsafe exposure to Sun's UV rays.
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in December
Whitefish, MT

Average temperature in December - Whitefish, MT
  • Average high temperature in December: 30°F

The warmest months (with the highest average high temperature) are July and August (79°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in December: 16°F

The months with the highest average low temperature are July and August (46°F).
The coldest month (with the lowest average low temperature) is January (12°F).

Average rainfall in December
Whitefish, MT

Average rainfall in December - Whitefish, MT
  • Average rainfall in December: 2"

The wettest month (with the highest rainfall) is June (2.4").
The driest month (with the least rainfall) is October (1.2").

Average rainfall days in December
Whitefish, MT

Average rainfall days in December - Whitefish, MT
  • Average rainfall days in December: 15 days

The month with the highest number of rainy days is December (15 days).
The months with the least rainy days are July and September (8 days).

Average daylight in December /
Average sunshine in December
Whitefish, MT

Average daylight in December / Average sunshine in December - Whitefish, MT
  • Average daylight in December: 8h and 2min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in December: 2h

The month with the most sunshine is July (Average sunshine: 12h).
The months with the least sunshine are January and December (Average sunshine: 2h).

Average UV index in December
Whitefish, MT

Average UV index in December - Whitefish, MT
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are January, November and December (UV index 1).

Whitefish, Montana, USA

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