December weather forecast
Dooley, MT

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Weather in December

December, the first month of the winter in Dooley, is also a subzero cold month, with an average temperature fluctuating between 21.9°F (-5.6°C) and 10°F (-12.2°C).

Temperature

The shift from November to December is characterized by a clear decrease in the average high-temperature, reducing from an icy 36.3°F (2.4°C) to a subzero cold 21.9°F (-5.6°C). December nights cool down to an average low-temperature of 10°F (-12.2°C).

Humidity

The average relative humidity in December in Dooley is 87%.

Rainfall

In Dooley, in December, it is raining for 3.6 days, with typically 0.51" (13mm) of accumulated precipitation. In Dooley, Montana, during the entire year, the rain falls for 93.3 days and collects up to 12.01" (305mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Dooley. In December, it is snowing for 13 days. Throughout December, 3.19" (81mm) of snow is accumulated. Throughout the year, there are 66.5 snowfall days, and 19.02" (483mm) of snow is accumulated.

Daylight

With an average of 8h and 18min of daylight, December has the shortest days of the year in Dooley.
On the first day of the month, sunrise is at 7:30 am and sunset at 4:03 pm. On the last day of December, in Dooley, sunrise is at 7:50 am and sunset at 4:10 pm MST.

Sunshine

In Dooley, the average sunshine in December is 4.2h.

UV index

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 2 in December transforms into the following instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

How cold is December in Dooley?

During December, Dooley experiences an average high-temperature of 21.9°F (-5.6°C) and a low-temperature of 10°F (-12.2°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is computed to be 82.4°F (28°C).

What is the average humidity in December in Dooley?

The average relative humidity in December in Dooley is 87%.

How many days does it rain in December in Dooley?

In Dooley, Montana, in December, it is raining for 3.6 days, with typically 0.51" (13mm) of accumulated precipitation.

How many days does it snow in December in Dooley?

In December, in Dooley, it is snowing for 13 days. Throughout December, 3.19" (81mm) of snow is accumulated.

What is the month with the shortest days in Dooley?

The month with the shortest days is December, with an average of 8h and 18min of daylight.

How many hours of daylight does Dooley have in December?

The average day length in December in Dooley is 8h and 20min.

When are sunrise and sunset in December in Dooley?

On the first day of December in Dooley, Montana, sunrise is at 7:30 am and sunset at 4:03 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 4:10 pm MST.

How many hours of sunshine does Dooley have in December?

In December, the average sunshine duration in Dooley, Montana, is 4.2h.

How high is the UV index in December in Dooley?

In December, the average daily maximum UV index in Dooley, Montana, is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's 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
Dooley, MT

Average temperature in December - Dooley, MT
  • Average high temperature in December: 21.9°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is February (19.8°F).

  • Average low temperature in December: 10°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is February (6.3°F).

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Average pressure in December
Dooley, MT

Average pressure in December - Dooley, MT
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

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Average wind speed in December
Dooley, MT

Average wind speed in December - Dooley, MT
  • Average wind speed in December: 9.9mph

The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is February (9.2mph).

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Average humidity in December
Dooley, MT

Average humidity in December - Dooley, MT
  • Average humidity in December: 87%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is August (46%).

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Average rainfall in December
Dooley, MT

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

The wettest month (with the highest rainfall) is June (2.17").
The driest month (with the least rainfall) is February (0.47").

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Average rainfall days in December
Dooley, MT

Average rainfall days in December - Dooley, MT
  • Average rainfall days in December: 3.6 days

The month with the highest number of rainy days is June (13.9 days).
The month with the least rainy days is February (2.6 days).

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Average snowfall in December
Dooley, MT

Average snowfall in December - Dooley, MT
  • Average snowfall in December: 3.19"

The month with the highest snowfall is November (3.74").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Dooley, MT

Average snowfall days in December - Dooley, MT
  • Average snowfall days in December: 13 days

The month with the highest number of snowfall days is February (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

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Average sunshine days in December
Dooley, MT

Average sunshine days in December - Dooley, MT
  • Average sunshine days in December: 17.2 days

The month with the most sunshine days is August (20.1 days).
The months with the least sunshine days are February and June (13.8 days).

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Average UV index in December
Dooley, MT

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

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).

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Average cloud cover in December
Dooley, MT

Average cloud cover in December - Dooley, MT
  • Average cloud cover in December: 56

The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 19).

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Average visibility in December
Dooley, MT

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

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

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Dooley, Montana, USA

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