December weather forecast
Egbert, WY

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Weather in December

The first month of the winter, December, is also an icy month in Egbert, Wyoming, with an average temperature fluctuating between 34.7°F (1.5°C) and 20.3°F (-6.5°C).

Temperature

December brings the lowest temperatures, with an average high of 34.7°F (1.5°C) and an average low of 20.3°F (-6.5°C).

Humidity

In Egbert, the average relative humidity in December is 63%.

Rainfall

In Egbert, during December, the rain falls for 5.5 days and regularly aggregates up to 0.59" (15mm) of precipitation. In Egbert, during the entire year, the rain falls for 116 days and collects up to 14.57" (370mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Egbert, in December, snow falls for 9.6 days, with typically accumulated 2.8" (71mm) of snow. Throughout the year, there are 62 snowfall days, and 30.51" (775mm) of snow is accumulated.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:03 am and sunset at 4:28 pm. On the last day of December, sunrise is at 7:22 am and sunset at 4:38 pm MST.

Sunshine

In December, the average sunshine is 6.6h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, a daily UV index of 2 turns into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Aug 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

With average high temperatures of 34.7°F (1.5°C) and lows of 20.3°F (-6.5°C), December is the coldest month.

How cold is it in December?

In December, in Egbert, the average high-temperature is 34.7°F (1.5°C), and the average low-temperature is 20.3°F (-6.5°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is estimated at 80.6°F (27°C).

What is the average humidity in December?

In Egbert, the average relative humidity in December is 63%.

How much does it rain in December?

In Egbert, in December, it is raining for 5.5 days, with typically 0.59" (15mm) of accumulated precipitation.

How many days does it snow in December?

In Egbert, in December, snow falls for 9.6 days, with typically accumulated 2.8" (71mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 18min of daylight.

What is the average length of the day in December?

In Egbert, the average day length in December is 9h and 16min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:03 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:38 pm MST.

How long on average sun shines in December in Egbert?

The average sunshine duration in December is 6.6h.

What are the months with the lowest UV index?

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

What is the UV index intensity in December?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to Sun's UV rays.
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
Egbert, WY

Average temperature in December - Egbert, WY
  • Average high temperature in December: 34.7°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is December (34.7°F).

  • Average low temperature in December: 20.3°F

The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is December (20.3°F).

Average pressure in December
Egbert, WY

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in December
Egbert, WY

Average wind speed in December - Egbert, WY
  • Average wind speed in December: 13.1mph

The windiest month (with the highest average wind speed) is January (14.2mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).

Average humidity in December
Egbert, WY

Average humidity in December - Egbert, WY
  • Average humidity in December: 63%

The month with the highest relative humidity is February (64%).
The month with the lowest relative humidity is August (43%).

Average rainfall in December
Egbert, WY

Average rainfall in December - Egbert, WY
  • Average rainfall in December: 0.59"

The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days in December
Egbert, WY

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

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (4.7 days).

Average snowfall in December
Egbert, WY

Average snowfall in December - Egbert, WY
  • Average snowfall in December: 2.8"

The month with the highest snowfall is March (6.06").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Egbert, WY

Average snowfall days in December - Egbert, WY
  • Average snowfall days in December: 9.6 days

The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Egbert, WY
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 6h and 4min

The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 6h and 30min).

Average sunshine days in December
Egbert, WY

Average sunshine days in December - Egbert, WY
  • Average sunshine days in December: 19.5 days

The month with the most sunshine days is January (20.7 days).
The month with the least sunshine days is April (9.3 days).

Average UV index in December
Egbert, WY

Average UV index in December - Egbert, 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, November and December (UV index 2).

Average cloud cover in December
Egbert, WY

Average cloud cover in December - Egbert, WY
  • Average cloud cover in December: 28

The months with the most cloud cover are April and May (Cloud cover 32).
The month with the least cloud cover is September (Cloud cover 18).

Average visibility in December
Egbert, WY

Average visibility in December - Egbert, 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).

Egbert, Wyoming, USA

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