December weather forecast
Anaconda, MT

Weather in December

The first month of the winter, December, is still a freezing cold month in Anaconda, Montana, with temperature in the range of an average high of 25.3°F (-3.7°C) and an average low of 10.8°F (-11.8°C).

Temperature

With an average high-temperature of 25.3°F (-3.7°C) and an average low-temperature of 10.8°F (-11.8°C), December is the coldest month.

Humidity

In December, the average relative humidity is 87%.

Rainfall

January and December are months with the least rain when the rain falls for 8.1 days and typically aggregates up to 0.94" (24mm) of rain.

Snowfall

Months with snowfall are January through June, September through December. In Anaconda, during December, snow falls for 17.2 days and regularly aggregates up to 7.4" (188mm) of snow. In Anaconda, during the entire year, snow falls for 117.3 days, and aggregates up to 65.47" (1663mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8.7h of daylight.

Sunshine

Months with the least sunshine in Anaconda are January and December, with an average of 5.4h of sunshine.

UV index

February and December, with an average maximum UV index of 1, are months with the lowest UV index in Anaconda. A UV Index of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV rays for average individuals.
Note: In December, the average maximum UV index of 1 translate into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. 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 coldest month in Anaconda?

December is the coldest month, with an average high-temperature of 25.3°F (-3.7°C) and an average low-temperature of 10.8°F (-11.8°C).

What is the average humidity in December in Anaconda?

The average relative humidity in December is 87%.

What is the driest month in Anaconda?

January and December are months with the least rain in Anaconda, Montana, when the rain falls for 8.1 days and typically aggregates up to 0.94" (24mm) of rain.

How much does it rain in Anaconda in December?

In Anaconda, Montana, in December, it is raining for 8.1 days, with typically 0.94" (24mm) of accumulated precipitation.

How many days does it snow in December in Anaconda?

In Anaconda, in December, during 17.2 snowfall days, 7.4" (188mm) of snow is typically accumulated.

What is the month with the shortest days in Anaconda?

December has the shortest days of the year in Anaconda, Montana, with an average of 8.7h of daylight.

How many hours of daylight does Anaconda have in December?

In Anaconda, Montana, the average length of the day in December is 8.7h.

What is the month with the least sunshine in Anaconda?

January and December, with an average of 5.4h of sunshine, are months with the least sunshine in Anaconda, Montana.

How many hours of sunshine does Anaconda have in December?

The average sunshine in December is 5.4h.

What are the months with the lowest UV index in Anaconda?

February and December, with an average maximum UV index of 1, are months with the lowest UV index in Anaconda, Montana.

What is the UV index intensity in December in Anaconda?

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

Average temperature in December
Anaconda, MT

Average temperature in December - Anaconda, MT
  • Average high temperature in December: 25.3°F

The warmest month (with the highest average high temperature) is July (75.4°F).
The month with the lowest average high temperature is December (25.3°F).

  • Average low temperature in December: 10.8°F

The month with the highest average low temperature is August (44.6°F).
The coldest month (with the lowest average low temperature) is December (10.8°F).

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Average pressure in December
Anaconda, MT

Average pressure in December - Anaconda, MT
  • Average pressure in December: 30.19"

The month with the highest atmospheric pressure is January (30.21").
The month with the lowest atmospheric pressure is June (29.92").

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Average wind speed in December
Anaconda, MT

Average wind speed in December - Anaconda, MT
  • Average wind speed in December: 6.5mph

The windiest months (with the highest average wind speed) are January and November (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in December
Anaconda, MT

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

The month with the highest relative humidity is February (89%).
Months with the lowest relative humidity are July and August (50%).

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Average rainfall in December
Anaconda, MT

Average rainfall in December - Anaconda, MT
  • Average rainfall in December: 0.94"

The wettest month (with the highest rainfall) is June (2.87").
The driest months (with the least rainfall) are January and December (0.94").

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Average rainfall days in December
Anaconda, MT

Average rainfall days in December - Anaconda, MT
  • Average rainfall days in December: 8.1 days

The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is November (7.9 days).

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Average snowfall in December
Anaconda, MT

Average snowfall in December - Anaconda, MT
  • Average snowfall in December: 7.4"

The month with the highest snowfall is February (11.93").
Months with the least snowfall are July and August (0").

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Average snowfall days in December
Anaconda, MT

Average snowfall days in December - Anaconda, MT
  • Average snowfall days in December: 17.2 days

The month with the highest number of snowfall days is February (20.2 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
Anaconda, MT

Average daylight in December / Average sunshine in December - Anaconda, MT
  • Average daylight in December: 8.7h

The month with the longest days is June (Average daylight: 15.7h).
The month with the shortest days is December (Average daylight: 8.7h).

  • Average sunshine in December: 5.4h

The month with the most sunshine is July (Average sunshine: 11.6h).
Months with the least sunshine are January and December (Average sunshine: 5.4).

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Average sunshine days in December
Anaconda, MT

Average sunshine days in December - Anaconda, MT
  • Average sunshine days in December: 13.9 days

The month with the most sunshine days is September (17.2 days).
Months with the least sunshine days are February and April (7.2 days).

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Average UV index in December
Anaconda, MT

Average UV index in December - Anaconda, MT
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 5).
Months with the lowest UV index are February and December (UV index 1).

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Average cloud cover in December
Anaconda, MT

Average cloud cover in December - Anaconda, MT
  • Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 16).

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Average visibility in December
Anaconda, MT

Average visibility in December - Anaconda, MT
  • Average visibility in December: 4mi

Months with the highest visibility are May, June, July, August, September and October (6mi).
Months with the lowest visibility are January, February, March and December (4mi).

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