December weather forecast
Trout Creek, MT

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Weather in December

December, the first month of the winter in Trout Creek, is also a subzero cold month, with an average temperature varying between 28.9°F (-1.7°C) and 16.2°F (-8.8°C).

Temperature

With average temperatures fluctuating between a high of 28.9°F (-1.7°C) and a low of 16.2°F (-8.8°C), December stands out as the coldest month.

Humidity

In Trout Creek, the average relative humidity in December is 91%.

Rainfall

In Trout Creek, during December, the rain falls for 12.2 days and regularly aggregates up to 2.99" (76mm) of precipitation. In Trout Creek, during the entire year, the rain falls for 152.1 days and collects up to 22.09" (561mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. In December, it is snowing for 20.4 days. Throughout December, 13.35" (339mm) of snow is accumulated. Throughout the year, there are 90.2 snowfall days, and 58.15" (1477mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 8h and 30min of daylight.
On the first day of December in Trout Creek, Montana, sunrise is at 8:11 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 8:31 am and sunset at 5:00 pm MST.

Sunshine

In Trout Creek, the average sunshine in December is 3.8h.

UV index

The months with the lowest UV index in Trout Creek are January, February, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 1 in December interprets into the following advice:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. When the Sun is at its strongest around midday, find shade and limit exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Updated: Jun 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

The lowest temperatures are recorded in December, with averages reaching a high of 28.9°F (-1.7°C) and a low of 16.2°F (-8.8°C).

How cold is December?

In December, the average high-temperature and low-temperature are 28.9°F (-1.7°C) and 16.2°F (-8.8°C) respectively.

What is the average humidity in December?

In Trout Creek, the average relative humidity in December is 91%.

How many days does it rain in December?

In Trout Creek, Montana, in December, it is raining for 12.2 days, with typically 2.99" (76mm) of accumulated precipitation.

How many days does it snow in December?

In Trout Creek, in December, snow falls for 20.4 days, with typically accumulated 13.35" (339mm) of snow.

What is the month with the shortest days?

With an average of 8h and 30min of daylight, December has the shortest days of the year.

How many hours of daylight does Trout Creek have in December?

The average day length in December is 8h and 28min.

When are sunrise and sunset in December?

On the first day of December in Trout Creek, sunrise is at 8:11 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 8:31 am and sunset at 5:00 pm MST.

How many hours of sunshine does Trout Creek have in December?

In Trout Creek, the average sunshine duration in December is 3.8h.

When is the lowest UV index?

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

What is the UV index reading in December in Trout Creek?

In Trout Creek, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to 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
Trout Creek, MT

Average temperature in December - Trout Creek, MT
  • Average high temperature in December: 28.9°F

The warmest months (with the highest average high temperature) are July and August (78.8°F).
The month with the lowest average high temperature is December (28.9°F).

  • Average low temperature in December: 16.2°F

The month with the highest average low temperature is August (45.7°F).
The coldest month (with the lowest average low temperature) is December (16.2°F).

Average pressure in December
Trout Creek, MT

Average pressure in December - Trout Creek, MT
  • Average pressure in December: 30.17"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Trout Creek, MT

Average wind speed in December - Trout Creek, MT
  • Average wind speed in December: 4mph

The windiest month (with the highest average wind speed) is April (4.9mph).
The calmest month (with the lowest average wind speed) is December (4mph).

Average humidity in December
Trout Creek, MT

Average humidity in December - Trout Creek, MT
  • Average humidity in December: 91%

The month with the highest relative humidity is January (93%).
The months with the lowest relative humidity are July and August (53%).

Average rainfall in December
Trout Creek, MT

Average rainfall in December - Trout Creek, MT
  • Average rainfall in December: 2.99"

The wettest month (with the highest rainfall) is January (3.11").
The driest month (with the least rainfall) is August (0.39").

Average rainfall days in December
Trout Creek, MT

Average rainfall days in December - Trout Creek, MT
  • Average rainfall days in December: 12.2 days

The month with the highest number of rainy days is March (19.9 days).
The month with the least rainy days is August (5.9 days).

Average snowfall in December
Trout Creek, MT

Average snowfall in December - Trout Creek, MT
  • Average snowfall in December: 13.35"

The month with the highest snowfall is February (15.12").
The months with the least snowfall are June, July and August (0").

Average snowfall days in December
Trout Creek, MT

Average snowfall days in December - Trout Creek, MT
  • Average snowfall days in December: 20.4 days

The month with the highest number of snowfall days is December (20.4 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in December /
Average sunshine in December
Trout Creek, MT

Average daylight in December / Average sunshine in December - Trout Creek, MT
  • Average daylight in December: 8h and 3min

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 30min).

  • Average sunshine in December: 3h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in December
Trout Creek, MT

Average sunshine days in December - Trout Creek, MT
  • Average sunshine days in December: 8.1 days

The months with the most sunshine days are July and August (23.3 days).
The month with the least sunshine days is March (5.8 days).

Average UV index in December
Trout Creek, MT

Average UV index in December - Trout Creek, MT
  • 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, November and December (UV index 1).

Average cloud cover in December
Trout Creek, MT

Average cloud cover in December - Trout Creek, MT
  • Average cloud cover in December: 63

The month with the most cloud cover is February (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 15).

Average visibility in December
Trout Creek, MT

Average visibility in December - Trout Creek, MT
  • Average visibility in December: 3mi

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

Trout Creek, Montana, USA

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