December weather forecast
Douglas, WY

Weather in December

December, the first month of the winter in Douglas, is also a subzero cold month, with an average temperature fluctuating between 31.3°F (-0.4°C) and 18.1°F (-7.7°C).

Temperature

December is the coldest month, with an average high-temperature of 31.3°F (-0.4°C) and an average low-temperature of 18.1°F (-7.7°C).

Humidity

In Douglas, the average relative humidity in December is 71%.

Rainfall

In Douglas, in December, during 5 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. In Douglas, during the entire year, the rain falls for 93.9 days and collects up to 12.09" (307mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall in Douglas. In Douglas, during December, snow falls for 11.5 days and regularly aggregates up to 4.21" (107mm) of snow. In Douglas, during the entire year, snow falls for 60.9 days and aggregates up to 34.21" (869mm) of snow.

Daylight

With an average of 9h and 6min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:12 am and sunset at 4:28 pm. On the last day of December, in Douglas, sunrise is at 7:31 am and sunset at 4:37 pm MST.

Sunshine

In December, the average sunshine in Douglas, Wyoming, is 6.6h.

UV index

January, February, April, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Douglas. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 2 in December interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. 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 Douglas?

The coldest month in Douglas, Wyoming, is December, with an average high-temperature of 31.3°F (-0.4°C) and an average low-temperature of 18.1°F (-7.7°C).

What is the average humidity in December in Douglas?

In December, the average relative humidity in Douglas, Wyoming, is 71%.

How many days does it rain in December in Douglas?

In Douglas, Wyoming, in December, during 5 rainfall days, 0.71" (18mm) of precipitation is typically accumulated.

How many days does it snow in December in Douglas?

In Douglas, Wyoming, during December, snow falls for 11.5 days and regularly aggregates up to 4.21" (107mm) of snow.

What is the month with the shortest days in Douglas?

With an average of 9h and 6min of daylight, December has the shortest days of the year in Douglas, Wyoming.

How many hours of daylight does Douglas have in December?

The average day length in December in Douglas, Wyoming, is 9h and 6min.

When are sunrise and sunset in December in Douglas?

In December, on the first day of the month, sunrise is at 7:12 am and sunset at 4:28 pm. On the last day of the month, in Douglas, sunrise is at 7:31 am and sunset at 4:37 pm MST.

How long on average sun shines in December in Douglas?

In December, the average sunshine duration is 6.6h.

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

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

How high is the UV index in December in Douglas?

The average daily maximum UV index in December in Douglas, Wyoming, 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
Douglas, WY

Average temperature in December - Douglas, WY
  • Average high temperature in December: 31.3°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is December (31.3°F).

  • Average low temperature in December: 18.1°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is December (18.1°F).

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Average pressure in December
Douglas, WY

Average pressure in December - Douglas, WY
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in December
Douglas, WY

Average wind speed in December - Douglas, WY
  • Average wind speed in December: 12.2mph

The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).

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Average humidity in December
Douglas, WY

Average humidity in December - Douglas, WY
  • Average humidity in December: 71%

The month with the highest relative humidity is February (73%).
The month with the lowest relative humidity is August (40%).

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Average rainfall in December
Douglas, WY

Average rainfall in December - Douglas, WY
  • Average rainfall in December: 0.71"

The wettest month (with the highest rainfall) is May (2.28").
The driest month (with the least rainfall) is September (0.43").

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Average rainfall days in December
Douglas, WY

Average rainfall days in December - Douglas, WY
  • Average rainfall days in December: 5 days

The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (4.3 days).

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Average snowfall in December
Douglas, WY

Average snowfall in December - Douglas, WY
  • Average snowfall in December: 4.21"

The month with the highest snowfall is April (5.59").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Douglas, WY

Average snowfall days in December - Douglas, WY
  • Average snowfall days in December: 11.5 days

The month with the highest number of snowfall days is February (12.2 days).
The 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
Douglas, WY

Average daylight in December / Average sunshine in December - Douglas, WY
  • Average daylight in December: 9h and 6min

The month with the longest days is June (Average daylight: 15h and 17min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in December: 6h and 36min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).

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Average sunshine days in December
Douglas, WY

Average sunshine days in December - Douglas, WY
  • Average sunshine days in December: 18.4 days

The month with the most sunshine days is October (21.6 days).
The month with the least sunshine days is April (11.3 days).

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Average UV index in December
Douglas, WY

Average UV index in December - Douglas, WY
  • Average UV index in December: 2

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, April, November and December (UV index 2).

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Average cloud cover in December
Douglas, WY

Average cloud cover in December - Douglas, WY
  • Average cloud cover in December: 30

The month with the most cloud cover is February (Cloud cover 34).
The month with the least cloud cover is August (Cloud cover 13).

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Average visibility in December
Douglas, WY

Average visibility in December - Douglas, WY
  • 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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