December weather forecast
Busby, MT

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Weather in December

December, the first month of the winter in Busby, is also a subzero cold month, with temperature in the range of an average high of 30.4°F (-0.9°C) and an average low of 16.7°F (-8.5°C).

Temperature

Busby witnesses the coldest weather in December, with temperatures averaging a high of 30.4°F (-0.9°C) and a low of 16.7°F (-8.5°C).

Humidity

The average relative humidity in December in Busby is 77%.

Rainfall

December is the month with the least rainfall. Rain falls for 3.4 days and accumulates 0.47" (12mm) of precipitation.

Snowfall

Months with snowfall are January through June, September through December. In Busby, in December, snow falls for 9.3 days, with typically accumulated 3.15" (80mm) of snow. In Busby, Montana, during the entire year, snow falls for 55.2 days and aggregates up to 23.5" (597mm) of snow.

Daylight

December has the shortest days of the year, with an average of 8h and 48min of daylight.
On the first day of December in Busby, Montana, sunrise is at 7:28 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 4:34 pm MST.

Sunshine

In Busby, the average sunshine in December is 5.4h.

UV index

January through April, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Busby. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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Frequently asked questions

What is the coldest month in Busby?

Busby notes the coldest temperatures in December, with a average high of 30.4°F (-0.9°C) and a low of 16.7°F (-8.5°C).

How cold is it in Busby in December?

In December, in Busby, the average high-temperature is 30.4°F (-0.9°C), and the average low-temperature is 16.7°F (-8.5°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is evaluated at 82.4°F (28°C).

What is the average humidity in December in Busby?

The average relative humidity in December in Busby is 77%.

What is the driest month in Busby?

The month with the least rainfall in Busby, Montana, is December, when the rain falls for 3.4 days and typically collects 0.47" (12mm) of precipitation.

How many days does it rain in December in Busby?

In Busby, in December, it is raining for 3.4 days, with typically 0.47" (12mm) of accumulated precipitation.

How many days does it snow in December in Busby?

In Busby, in December, snow falls for 9.3 days, with typically accumulated 3.15" (80mm) of snow.

What is the month with the shortest days in Busby?

December has the shortest days of the year in Busby, with an average of 8h and 48min of daylight.

What is the average length of the day in December in Busby?

In Busby, Montana, the average day length in December is 8h and 46min.

When is the sunrise / sunset in December in Busby?

In December, on the first day of the month, sunrise is at 7:28 am and sunset at 4:25 pm. On the last day of the month, in Busby, Montana, sunrise is at 7:47 am and sunset at 4:34 pm MST.

How many hours of sunshine does Busby have in December?

In Busby, the average sunshine duration in December is 5.4h.

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

January through April, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Busby.

What is the UV index reading in December in Busby?

In December, the average daily maximum UV index in Busby is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Busby, MT

Average temperature in December - Busby, MT
  • Average high temperature in December: 30.4°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (30.4°F).

  • Average low temperature in December: 16.7°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (16°F).

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Average pressure in December
Busby, MT

Average pressure in December - Busby, MT
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in December
Busby, MT

Average wind speed in December - Busby, MT
  • Average wind speed in December: 8.2mph

The windiest month (with the highest average wind speed) is April (10mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).

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Average humidity in December
Busby, MT

Average humidity in December - Busby, MT
  • Average humidity in December: 77%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (42%).

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Average rainfall in December
Busby, MT

Average rainfall in December - Busby, MT
  • Average rainfall in December: 0.47"

The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is December (0.47").

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Average rainfall days in December
Busby, MT

Average rainfall days in December - Busby, MT
  • Average rainfall days in December: 3.4 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (2.8 days).

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Average snowfall in December
Busby, MT

Average snowfall in December - Busby, MT
  • Average snowfall in December: 3.15"

The month with the highest snowfall is February (4.33").
The months with the least snowfall are July and August (0").

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Average snowfall days in December
Busby, MT

Average snowfall days in December - Busby, MT
  • Average snowfall days in December: 9.3 days

The month with the highest number of snowfall days is February (10.4 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in December / Average sunshine in December - Busby, MT
  • Average daylight in December: 8h and 5min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in December
Busby, MT

Average sunshine days in December - Busby, MT
  • Average sunshine days in December: 20.5 days

The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (11.3 days).

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Average UV index in December
Busby, MT

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

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

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Average cloud cover in December
Busby, MT

Average cloud cover in December - Busby, MT
  • Average cloud cover in December: 45

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 15).

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Average visibility in December
Busby, MT

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

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

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Busby, Montana, USA

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