December weather forecast and climate
Thoeny, MT

Weather in December

December, the first month of the winter, in Thoeny, is still a freezing cold month, with average temperature ranging between min 12.7°F (-10.7°C) and max 24.8°F (-4°C).

Temperature

In December, the average high-temperature decreases, from a wintry 38.8°F (3.8°C) in November, to a freezing cold 24.8°F (-4°C). In Thoeny, Montana, the average low-temperature is 12.7°F (-10.7°C).

Humidity

The average relative humidity is 83%.

Rainfall

In Thoeny, in December, during 4.2 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. Throughout the year, in Thoeny, there are 91.8 rainfall days, and 10.63" (270mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Thoeny, Montana, are January through May, October through December. The month with the most snowfall is December when snow falls for 11.8 days and typically aggregates up to 3.43" (87mm) of snow.

Daylight

With an average of 8.3h of daylight, December has the shortest days of the year in Thoeny.

Sunshine

In December, the average sunshine is 4.8h.

UV index

Months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to the UV radiation for the average person.
Note: The average daily UV index of 2 in December transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Thoeny?

The average high-temperature, in December, is 24.8°F (-4°C), while the average low-temperature is 12.7°F (-10.7°C).

What is the average humidity in December in Thoeny?

In December, the average relative humidity in Thoeny, Montana, is 83%.

How many days does it rain in December in Thoeny?

In Thoeny, in December, during 4.2 rainfall days, 0.51" (13mm) of precipitation is typically accumulated.

How many days does it snow in December in Thoeny?

In Thoeny, Montana, in December, during 11.8 snowfall days, 3.43" (87mm) of snow is typically accumulated.

What is the snowiest month in Thoeny?

The month with the most snowfall in Thoeny is December when snow falls for 11.8 days and typically aggregates up to 3.43" (87mm) of snow.

What is the month with the shortest days in Thoeny?

With an average of 8.3h of daylight, December has the shortest days of the year in Thoeny.

How many hours of daylight does Thoeny have in December?

In Thoeny, the average length of the day in December is 8.3h.

How long on average sun shines in December in Thoeny?

The average sunshine in December in Thoeny, Montana, is 4.8h.

When is the lowest UV index in Thoeny?

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in December in Thoeny?

The average daily maximum UV index in December in Thoeny, Montana, is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from the exposure to the Sun's UV radiation.

Average temperature in December
Thoeny, MT

Average temperature in December - Thoeny, MT
  • Average high temperature in December: 24.8°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is February (24.4°F).

  • Average low temperature in December: 12.7°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is February (10°F).

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Average pressure in December
Thoeny, MT

Average pressure in December - Thoeny, MT
  • Average pressure in December: 30.12"

The month with the highest atmospheric pressure is February (30.15").
The month with the lowest atmospheric pressure is June (29.83").

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Average wind speed in December
Thoeny, MT

Average wind speed in December - Thoeny, MT
  • Average wind speed in December: 8.5mph

The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is February (8.3mph).

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Average humidity in December
Thoeny, MT

Average humidity in December - Thoeny, MT
  • Average humidity in December: 83%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (41%).

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Average rainfall in December
Thoeny, MT

Average rainfall in December - Thoeny, MT
  • Average rainfall in December: 0.51"

The wettest month (with the highest rainfall) is May (1.73").
The driest month (with the least rainfall) is February (0.43").

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Average rainfall days in December
Thoeny, MT

Average rainfall days in December - Thoeny, MT
  • Average rainfall days in December: 4.2 days

The month with the highest number of rainy days is May (12.7 days).
The month with the least rainy days is February (3.3 days).

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Average snowfall in December
Thoeny, MT

Average snowfall in December - Thoeny, MT
  • Average snowfall in December: 3.43"

The month with the highest snowfall is December (3.43").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Thoeny, MT

Average snowfall days in December - Thoeny, MT
  • Average snowfall days in December: 11.8 days

The month with the highest number of snowfall days is January (12.3 days).
Months with the least snowfall days are June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Thoeny, MT
  • Average daylight in December: 8.3h

The month with the longest days is June (Average daylight: 16.1h).
The month with the shortest days is December (Average daylight: 8.3h).

  • Average sunshine in December: 4.8h

The month with the most sunshine is July (Average sunshine: 11.7h).
The month with the least sunshine is February (Average sunshine: 4.6h).

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Average sunshine days in December
Thoeny, MT

Average sunshine days in December - Thoeny, MT
  • Average sunshine days in December: 17.3 days

The month with the most sunshine days is October (21 days).
The month with the least sunshine days is April (15.4 days).

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Average UV index in December
Thoeny, MT

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

The month with the highest UV index is July (UV index 7).
Months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in December
Thoeny, MT

Average cloud cover in December - Thoeny, MT
  • Average cloud cover in December: 49

The month with the most cloud cover is February (Cloud cover 50).
Months with the least cloud cover are July and August (Cloud cover 18).

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Average visibility in December
Thoeny, MT

Average visibility in December - Thoeny, MT
  • Average visibility in December: 6mi

Months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

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