December weather forecast
Worland, WY

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Weather in December

December makes its arrival known with noticeable colder temperatures compared to November. The year wraps up with the average maximum temperature further dropping down to 29.3°F (-1.5°C), reinstating the character of winter. The daylight hours reach their minimum with 9 hours, while the relative humidity sees an upsurge to 75%, pushing dewfall. Families often enjoy indoor activities such as fireplace meets and indoor games due to the cold outside. Organized city decorations and the holiday season bring a wave of joy despite the intense winter chill.

Temperature

The coldest period tends to be December, when average temperatures fluctuate between a high of 29.3°F (-1.5°C) and a low of 14.4°F (-9.8°C).

Humidity

In December, the average relative humidity is 75%.

Rainfall

January and December are months with the least rain in Worland when the rain falls for 5.5 days and typically aggregates up to 0.31" (8mm) of rain.

Snowfall

Months with snowfall in Worland are January through May, October through December. In Worland, in December, snow falls for 8.9 days, with typically accumulated 1.65" (42mm) of snow. Throughout the year, in Worland, there are 44.9 snowfall days, and 14.49" (368mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 0min of daylight.
On the first day of December, sunrise is at 7:27 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 4:43 pm MST.

Sunshine

In Worland, the average sunshine in December is 6.5h.

UV index

The months with the lowest UV index in Worland are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 2 during December leads to these instructions:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.

Frequently asked questions

What is the coldest month?

December, having an average high-temperature of 29.3°F (-1.5°C) and an average low-temperature of 14.4°F (-9.8°C), is the coldest month.

How cold is it in December?

The average high-temperature, in December, in Worland, is 29.3°F (-1.5°C), while the average low-temperature is 14.4°F (-9.8°C).

What is the average humidity in December?

In December, the average relative humidity is 75%.

What is the driest month?

The months with the least rainfall are January and December Rain falls for 5.5 days and accumulates 0.31" (8mm) of rain.

How much does it rain in December?

In Worland, in December, it is raining for 5.5 days, with typically 0.31" (8mm) of accumulated precipitation.

How much does it snow in December?

In Worland, in December, snow falls for 8.9 days, with typically accumulated 1.65" (42mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 0min of daylight.

How many hours of daylight does Worland have in December?

The average day length in December is 8h and 57min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:27 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 4:43 pm MST.

How long on average sun shines in December?

In Worland, the average sunshine duration in December is 6.5h.

When is the lowest UV index?

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

How high is the UV index in December?

The average daily maximum UV index in December is 2. A UV Index 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
Worland, WY

Average temperature in December - Worland, WY
  • Average high temperature in December: 29.3°F

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is December (29.3°F).

  • Average low temperature in December: 14.4°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).

Average pressure in December
Worland, WY

Average pressure in December - Worland, WY
  • Average pressure in December: 30.16"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in December
Worland, WY

Average wind speed in December - Worland, WY
  • Average wind speed in December: 5.7mph

The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest month (with the lowest average wind speed) is January (5.3mph).

Average humidity in December
Worland, WY

Average humidity in December - Worland, WY
  • Average humidity in December: 75%

The month with the highest relative humidity is January (81%).
The months with the lowest relative humidity are July and August (32%).

Average rainfall in December
Worland, WY

Average rainfall in December - Worland, WY
  • Average rainfall in December: 0.31"

The wettest month (with the highest rainfall) is May (1.42").
The driest months (with the least rainfall) are January and December (0.31").

Average rainfall days in December
Worland, WY

Average rainfall days in December - Worland, WY
  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is May (12.6 days).
The month with the least rainy days is November (4.4 days).

Average snowfall in December
Worland, WY

Average snowfall in December - Worland, WY
  • Average snowfall in December: 1.65"

The month with the highest snowfall is February (3.9").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Worland, WY

Average snowfall days in December - Worland, WY
  • Average snowfall days in December: 8.9 days

The month with the highest number of snowfall days is February (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Worland, WY

Average daylight in December / Average sunshine in December - Worland, WY
  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 6h and 3min

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

Average sunshine days in December
Worland, WY

Average sunshine days in December - Worland, WY
  • Average sunshine days in December: 20.6 days

The month with the most sunshine days is October (22.5 days).
The month with the least sunshine days is April (13.5 days).

Average UV index in December
Worland, WY

Average UV index in December - Worland, WY
  • 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, November and December (UV index 2).

Average cloud cover in December
Worland, WY

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

The month with the most cloud cover is February (Cloud cover 34).
The months with the least cloud cover are July and August (Cloud cover 12).

Average visibility in December
Worland, WY

Average visibility in December - Worland, 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).

Worland, Wyoming, USA

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