December weather forecast
Kaycee, WY

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Weather in December

Kaycee welcomes December and with it, the chilly onset of winter. The mercury drops with average temperatures hovering between 15.4°F (-9.2°C) and 29.1°F (-1.6°C). Additionally, a notable weather pattern occurs this month, with snowfall reaching up to 2.64" (67mm) over 10.7 days. The short daylight hours and increased cloud cover result in crisp and cold winter days. As December concludes, residents brace themselves for the continuing snowfall and freezing temperatures characteristic of January.

Temperature

The arrival of December corresponds with a temperature reduction, down from November's icy 39.4°F (4.1°C) to a subzero cold 29.1°F (-1.6°C). Kaycee witnesses a consistent average low-temperature of 15.4°F (-9.2°C) throughout December.

Humidity

The average relative humidity in December in Kaycee, Wyoming, is 71%.

Rainfall

December is the month with the least rainfall. Rain falls for 5 days and accumulates 0.47" (12mm) of precipitation.

Snowfall

Months with snowfall are January through June, September through December. In Kaycee, in December, during 10.7 snowfall days, 2.64" (67mm) of snow is typically accumulated. In Kaycee, Wyoming, during the entire year, snow falls for 78 days and aggregates up to 39.13" (994mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 0min of daylight.
On the first day of the month, sunrise is at 7:21 am and sunset at 4:30 pm. On the last day of December, sunrise is at 7:40 am and sunset at 4:39 pm MST.

Sunshine

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

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 exposure to the Sun's UV radiation for the average person.
Note: An average maximum UV index of 2 in December leads to these recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

The high-temperature in Kaycee during December is 29.1°F (-1.6°C) and the low-temperature is 15.4°F (-9.2°C).

What is the average humidity in December?

In December, the average relative humidity is 71%.

What is the driest month?

December is the month with the least rainfall. Rain falls for 5 days and accumulates 0.47" (12mm) of precipitation.

How much does it rain in December?

In Kaycee, during December, the rain falls for 5 days and regularly aggregates up to 0.47" (12mm) of precipitation.

How much does it snow in Kaycee in December?

In Kaycee, in December, during 10.7 snowfall days, 2.64" (67mm) of snow is typically accumulated.

What is the month with the shortest days?

With an average of 9h and 0min of daylight, December has the shortest days of the year.

How many hours of daylight does Kaycee have in December?

The average day length in December is 8h and 59min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:21 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 4:39 pm MST.

How many hours of sunshine does Kaycee have in December?

The average sunshine duration in December is 6.5h.

When is the lowest UV index?

The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2.

What is the UV index reading in December?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat from unprotected exposure to 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
Kaycee, WY

Average temperature in December - Kaycee, WY
  • Average high temperature in December: 29.1°F

The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is February (28.9°F).

  • Average low temperature in December: 15.4°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 (14°F).

Average pressure in December
Kaycee, WY

Average pressure in December - Kaycee, WY
  • Average pressure in December: 30.13"Hg

The months with the highest atmospheric pressure are January and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in December
Kaycee, WY

Average wind speed in December - Kaycee, WY
  • Average wind speed in December: 7.1mph

The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in December
Kaycee, WY

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

The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (44%).

Average rainfall in December
Kaycee, WY

Average rainfall in December - Kaycee, WY
  • Average rainfall in December: 0.47"

The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is December (0.47").

Average rainfall days in December
Kaycee, WY

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

The month with the highest number of rainy days is May (21.2 days).
The month with the least rainy days is December (5 days).

Average snowfall in December
Kaycee, WY

Average snowfall in December - Kaycee, WY
  • Average snowfall in December: 2.64"

The month with the highest snowfall is April (7.05").
The months with the least snowfall are July and August (0").

Average snowfall days in December
Kaycee, WY

Average snowfall days in December - Kaycee, WY
  • Average snowfall days in December: 10.7 days

The month with the highest number of snowfall days is February (13.7 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in December / Average sunshine in December - Kaycee, 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: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).

Average sunshine days in December
Kaycee, WY

Average sunshine days in December - Kaycee, WY
  • Average sunshine days in December: 19.4 days

The month with the most sunshine days is December (19.4 days).
The month with the least sunshine days is May (5.5 days).

Average UV index in December
Kaycee, WY

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

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

Average cloud cover in December
Kaycee, WY

Average cloud cover in December - Kaycee, WY
  • Average cloud cover in December: 31

The month with the most cloud cover is April (Cloud cover 38).
The months with the least cloud cover are July and September (Cloud cover 17).

Average visibility in December
Kaycee, WY

Average visibility in December - Kaycee, 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).

Kaycee, Wyoming, USA

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