December weather forecast and climate
Cooke City, MT

Weather in December

December, the first month of the winter, in Cooke City, is still a freezing cold month, with average temperature ranging between min 14.9°F (-9.5°C) and max 27.5°F (-2.5°C).

Temperature

The coldest month is December, with an average high-temperature of 27.5°F (-2.5°C) and an average low-temperature of 14.9°F (-9.5°C).

Humidity

In Cooke City, the average relative humidity in December is 76%.

Rainfall

December is the month with the least rainfall in Cooke City. Rain falls for 8.5 days and accumulates 0.55" (14mm) of precipitation.

Snowfall

Months with snowfall in Cooke City are January through June, September through December. In Cooke City, in December, snow falls for 12.2 days, with typically accumulated 4.33" (110mm) of snow. In Cooke City, during the entire year, snow falls for 92.3 days, and aggregates up to 55.83" (1418mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8.8h of daylight.

Sunshine

In December, the average sunshine is 6.6h.

UV index

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Cooke City. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 2 in December transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Cooke City?

December is the coldest month, with an average high-temperature of 27.5°F (-2.5°C) and an average low-temperature of 14.9°F (-9.5°C).

What is the average humidity in December in Cooke City?

The average relative humidity in December in Cooke City, Montana, is 76%.

What is the driest month in Cooke City?

December is the month with the least rainfall in Cooke City. Rain falls for 8.5 days and accumulates 0.55" (14mm) of precipitation.

How many days does it rain in December in Cooke City?

In Cooke City, Montana, during December, the rain falls for 8.5 days and regularly aggregates up to 0.55" (14mm) of precipitation.

How much does it snow in Cooke City in December?

In Cooke City, during December, snow falls for 12.2 days and regularly aggregates up to 4.33" (110mm) of snow.

What is the month with the shortest days in Cooke City?

With an average of 8.8h of daylight, December has the shortest days of the year in Cooke City, Montana.

How many hours of daylight does Cooke City have in December?

The average length of the day in December is 8.8h.

How long on average sun shines in December in Cooke City?

In December, the average sunshine in Cooke City, Montana, is 6.6h.

When is the lowest UV index in Cooke City?

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Cooke City, Montana.

What is the UV index intensity in December in Cooke City?

In December, the average daily maximum UV index in Cooke City, Montana, is 2. A UV Index estimate of 2, and below, represents a low health risk from the exposure to the Sun's UV rays.

Average temperature in December
Cooke City, MT

Average temperature in December - Cooke City, MT
  • Average high temperature in December: 27.5°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is December (27.5°F).

  • Average low temperature in December: 14.9°F

The month with the highest average low temperature is July (56.1°F).
The coldest months (with the lowest average low temperature) are February and December (14.9°F).

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Average pressure in December
Cooke City, MT

Average pressure in December - Cooke City, MT
  • Average pressure in December: 30.15"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.88").

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Average wind speed in December
Cooke City, MT

Average wind speed in December - Cooke City, MT
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in December
Cooke City, MT

Average humidity in December - Cooke City, MT
  • Average humidity in December: 76%

The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is August (43%).

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Average rainfall in December
Cooke City, MT

Average rainfall in December - Cooke City, MT
  • Average rainfall in December: 0.55"

The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is December (0.55").

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Average rainfall days in December
Cooke City, MT

Average rainfall days in December - Cooke City, MT
  • Average rainfall days in December: 8.5 days

The month with the highest number of rainy days is May (20 days).
The month with the least rainy days is November (5.7 days).

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Average snowfall in December
Cooke City, MT

Average snowfall in December - Cooke City, MT
  • Average snowfall in December: 4.33"

The month with the highest snowfall is April (9.37").
Months with the least snowfall are July and August (0").

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Average snowfall days in December
Cooke City, MT

Average snowfall days in December - Cooke City, MT
  • Average snowfall days in December: 12.2 days

The month with the highest number of snowfall days is February (14.8 days).
Months with the least snowfall days are July and August (0 days).

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Average daylight in December /
Average sunshine in December
Cooke City, MT

Average daylight in December / Average sunshine in December - Cooke City, MT
  • Average daylight in December: 8.8h

The month with the longest days is June (Average daylight: 15.6h).
The month with the shortest days is December (Average daylight: 8.8h).

  • Average sunshine in December: 6.6h

The month with the most sunshine is July (Average sunshine: 11.9h).
The month with the least sunshine is February (Average sunshine: 6.5h).

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Average sunshine days in December
Cooke City, MT

Average sunshine days in December - Cooke City, MT
  • Average sunshine days in December: 17.4 days

The month with the most sunshine days is December (17.4 days).
The month with the least sunshine days is May (5.1 days).

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Average UV index in December
Cooke City, MT

Average UV index in December - Cooke City, MT
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

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Average cloud cover in December
Cooke City, MT

Average cloud cover in December - Cooke City, MT
  • Average cloud cover in December: 31

The month with the most cloud cover is February (Cloud cover 36).
Months with the least cloud cover are July and August (Cloud cover 16).

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Average visibility in December
Cooke City, MT

Average visibility in December - Cooke City, MT
  • Average visibility in December: 6mi

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

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