December weather forecast and climate
Osage, WY

Weather in December

December, the first month of the winter, in Osage, is also a subzero cold month, with average temperature fluctuating between 26.2°F (-3.2°C) and 11.7°F (-11.3°C).

Temperature

With an average high-temperature of 26.2°F (-3.2°C) and an average low-temperature of 11.7°F (-11.3°C), December is the coldest month.

Humidity

The average relative humidity in Osage is 81%.

Rainfall

The month with the least rainfall in Osage, Wyoming, is December when the rain falls for 4.3 days and typically collects 0.67" (17mm) of precipitation.

Snowfall

Months with snowfall in Osage, Wyoming, are January through June, September through December. In Osage, during 11.7 snowfall days, 3.98" (101mm) of snow is typically accumulated. In Osage, Wyoming, during the entire year, snow falls for 80.3 days, and aggregates up to 41.38" (1051mm) of snow.

Daylight

With an average of 9h of daylight, December has the shortest days of the year.

Sunshine

In December, the average sunshine in Osage is 5.8h.

UV index

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 2 in December interpret into the following advice:
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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. 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 Osage?

With an average high-temperature of 26.2°F (-3.2°C) and an average low-temperature of 11.7°F (-11.3°C), December is the coldest month in Osage, Wyoming.

What is the average humidity in December in Osage?

In December, the average relative humidity is 81%.

What is the driest month in Osage?

December is the month with the least rainfall in Osage, Wyoming. Rain falls for 4.3 days and accumulates 0.67" (17mm) of precipitation.

How much does it rain in Osage in December?

In December, the rain falls for 4.3 days. Throughout December, 0.67" (17mm) of precipitation is accumulated.

How much does it snow in Osage in December?

In Osage, during December, snow falls for 11.7 days and regularly aggregates up to 3.98" (101mm) of snow.

What is the month with the shortest days in Osage?

The month with the shortest days is December, with an average of 9h of daylight.

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

In Osage, Wyoming, the average length of the day in December is 9h.

How many hours of sunshine does Osage have in December?

The average sunshine in December in Osage, Wyoming, is 5.8h.

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

Months with the lowest UV index in Osage are January through April, October through December, with an average maximum UV index of 2.

How high is the UV index in December in Osage?

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV rays.

Average temperature in December
Osage, WY

Average temperature in December - Osage, WY
  • Average high temperature in December: 26.2°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is December (26.2°F).

  • Average low temperature in December: 11.7°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is February (10.8°F).

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Average pressure in December
Osage, WY

Average pressure in December - Osage, WY
  • Average pressure in December: 30.13"

Months with the highest atmospheric pressure are January and December (30.13").
The month with the lowest atmospheric pressure is June (29.84").

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Average wind speed in December
Osage, WY

Average wind speed in December - Osage, WY
  • Average wind speed in December: 8.3mph

The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).

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Average humidity in December
Osage, WY

Average humidity in December - Osage, WY
  • Average humidity in December: 81%

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is August (53%).

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Average rainfall in December
Osage, WY

Average rainfall in December - Osage, WY
  • Average rainfall in December: 0.67"

The wettest months (with the highest rainfall) are June and July (2.68").
The driest month (with the least rainfall) is December (0.67").

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Average rainfall days in December
Osage, WY

Average rainfall days in December - Osage, WY
  • Average rainfall days in December: 4.3 days

The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is February (3.7 days).

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Average snowfall in December
Osage, WY

Average snowfall in December - Osage, WY
  • Average snowfall in December: 3.98"

The month with the highest snowfall is April (8.82").
Months with the least snowfall are July and August (0").

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Average snowfall days in December
Osage, WY

Average snowfall days in December - Osage, WY
  • Average snowfall days in December: 11.7 days

The month with the highest number of snowfall days is January (12.8 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
Osage, WY

Average daylight in December / Average sunshine in December - Osage, WY
  • Average daylight in December: 9h

The month with the longest days is June (Average daylight: 15.4h).
The month with the shortest days is December (Average daylight: 9h).

  • Average sunshine in December: 5.8h

The month with the most sunshine is August (Average sunshine: 11.8h).
The month with the least sunshine is February (Average sunshine: 5.6h).

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Average sunshine days in December
Osage, WY

Average sunshine days in December - Osage, WY
  • Average sunshine days in December: 17.9 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (9.7 days).

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Average UV index in December
Osage, WY

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

Months with the highest UV index are June, July and August (UV index 5).
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
Osage, WY

Average cloud cover in December - Osage, WY
  • Average cloud cover in December: 40

The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 17).

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Average visibility in December
Osage, WY

Average visibility in December - Osage, WY
  • Average visibility in December: 5mi

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

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