December weather forecast
Laramie, WY

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A broken pulley in front of a farmhouse in a ranch in Laramie, Wyoming
A broken pulley in front of a farmhouse in a ranch in Laramie, Wyoming

Weather in December

Winter in Laramie, Wyoming, comes full circle with the arrival of December. The city transforms into a winterscape, complete with snow-dusted trees and frosted streets. The drop in temperature solidifies the winter mood, varying from 28.2°F (-2.1°C) during the day to a frigid 14.4°F (-9.8°C) at night. The year ends with shortened days and extended cold nights, highlighting the serene beauty of winter nights under clear skies. With a mug of steaming hot beverage, locals find pleasure in the cozy indoors, embracing the cold Laramie weather in December.

Temperature

In Laramie, the month of December is known for its lowest average temperatures, reaching a high of 28.2°F (-2.1°C) and a low of 14.4°F (-9.8°C).

Humidity

The average relative humidity in December is 74%.

Rainfall

In Laramie, in December, it is raining for 3.2 days, with typically 0.51" (13mm) of accumulated precipitation. In Laramie, during the entire year, the rain falls for 101.6 days and collects up to 14.33" (364mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall in Laramie. In Laramie, during December, snow falls for 8.8 days and regularly aggregates up to 3.46" (88mm) of snow. Throughout the year, there are 77.7 snowfall days, and 44.8" (1138mm) 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 December, sunrise is at 7:09 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:43 pm MST.

Sunshine

The months with the least sunshine are February and December, with an average of 6.5h of sunshine.

UV index

The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Jun 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year in Laramie?

December is the coldest month, with an average high-temperature of 28.2°F (-2.1°C) and an average low-temperature of 14.4°F (-9.8°C).

How cold is it in December?

The high-temperature, in December, in Laramie, records 28.2°F (-2.1°C), while the low-temperature is 14.4°F (-9.8°C).

What is the average humidity in December?

In Laramie, the average relative humidity in December is 74%.

How many days does it rain in December?

In December, the rain falls for 3.2 days. Throughout December, 0.51" (13mm) of precipitation is accumulated.

How much does it snow in December?

In Laramie, in December, snow falls for 8.8 days, with typically accumulated 3.46" (88mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 18min of daylight.

What is the average length of the day in December?

In December, the average day length is 9h and 15min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:09 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:43 pm MST.

What are the months with the least sunshine in Laramie?

February and December, with an average of 6.5h of sunshine, are months with the least sunshine.

How many hours of sunshine does Laramie have in December?

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

What are the months with 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.

How high is the UV index in December?

The average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health threat 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
Laramie, WY

Average temperature in December - Laramie, WY
  • Average high temperature in December: 28.2°F

The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is December (28.2°F).

  • Average low temperature in December: 14.4°F

The month with the highest average low temperature is July (54.1°F).
The coldest month (with the lowest average low temperature) is December (14.4°F).

Average pressure in December
Laramie, WY

Average pressure in December - Laramie, WY
  • Average pressure in December: 30.15"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in December
Laramie, WY

Average wind speed in December - Laramie, WY
  • Average wind speed in December: 14.1mph

The windiest month (with the highest average wind speed) is January (14.5mph).
The calmest month (with the lowest average wind speed) is July (9.3mph).

Average humidity in December
Laramie, WY

Average humidity in December - Laramie, WY
  • Average humidity in December: 74%

The months with the highest relative humidity are January and February (75%).
The month with the lowest relative humidity is August (43%).

Average rainfall in December
Laramie, WY

Average rainfall in December - Laramie, WY
  • Average rainfall in December: 0.51"

The wettest month (with the highest rainfall) is May (2.68").
The driest month (with the least rainfall) is January (0.35").

Average rainfall days in December
Laramie, WY

Average rainfall days in December - Laramie, WY
  • Average rainfall days in December: 3.2 days

The months with the highest number of rainy days are May and July (15.1 days).
The months with the least rainy days are January, February and November (2.9 days).

Average snowfall in December
Laramie, WY

Average snowfall in December - Laramie, WY
  • Average snowfall in December: 3.46"

The month with the highest snowfall is April (9.76").
The months with the least snowfall are July and August (0").

Average snowfall days in December
Laramie, WY

Average snowfall days in December - Laramie, WY
  • Average snowfall days in December: 8.8 days

The month with the highest number of snowfall days is April (12.5 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in December / Average sunshine in December - Laramie, 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 3min

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

Average sunshine days in December
Laramie, WY

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

The month with the most sunshine days is January (21.4 days).
The month with the least sunshine days is May (8.9 days).

Average UV index in December
Laramie, WY

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

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

Average cloud cover in December
Laramie, WY

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

The month with the most cloud cover is February (Cloud cover 34).
The month with the least cloud cover is September (Cloud cover 17).

Average visibility in December
Laramie, WY

Average visibility in December - Laramie, 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).

Laramie, Wyoming, USA

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