Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Devils Tower's December weather, with an average high temperature of 30.9°F (-0.6°C) and an average low temperature of 18.5°F (-7.5°C), tends to be the coldest of the year.Humidity
In Devils Tower, the average relative humidity in December is 76%.Rainfall
In Devils Tower, in December, during 3.5 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. Throughout the year, there are 99.6 rainfall days, and 15.71" (399mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. In Devils Tower, in December, snow falls for 9 days, with typically accumulated 4.09" (104mm) of snow. Throughout the year, in Devils Tower, there are 57 snowfall days, and 36.46" (926mm) of snow is accumulated.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year.On the first day of December in Devils Tower, sunrise is at 7:16 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 4:28 pm MST.
Sunshine
February and December, with an average of 5.7h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index are January, February, April, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: A maximum UV index of 2 in December translates into the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Frequently asked questions
What is the coldest month in Devils Tower?
How cold is it in Devils Tower in December?
What is the average humidity in December in Devils Tower?
How many days does it rain in December in Devils Tower?
How much does it snow in Devils Tower in December?
What is the month with the shortest days in Devils Tower?
How many hours of daylight does Devils Tower have in December?
When are sunrise and sunset in December in Devils Tower?
What are the months with the least sunshine in Devils Tower?
How many hours of sunshine does Devils Tower have in December?
When is the lowest UV index in Devils Tower?
What is the UV index reading in December in Devils Tower?
Average temperature in December
Devils Tower, WY
- Average high temperature in December: 30.9°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is December (30.9°F).
- Average low temperature in December: 18.5°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is February (16.2°F).
Average pressure in December
Devils Tower, 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 (29.84"Hg).
Average wind speed in December
Devils Tower, WY
- Average wind speed in December: 9.9mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (8mph).
Average humidity in December
Devils Tower, WY
- Average humidity in December: 76%
The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are August and September (49%).
Average rainfall in December
Devils Tower, WY
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is May (2.32").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in December
Devils Tower, WY
- Average rainfall days in December: 3.5 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in December
Devils Tower, WY
- Average snowfall in December: 4.09"
The month with the highest snowfall is April (7.36").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Devils Tower, WY
- Average snowfall days in December: 9 days
The month with the highest number of snowfall days is February (11.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Devils Tower, WY
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The months with the least sunshine are February and December (Average sunshine: 5h and 42min).
Average sunshine days in December
Devils Tower, WY
- Average sunshine days in December: 19.9 days
The months with the most sunshine days are September and November (20.3 days).
The month with the least sunshine days is May (12.7 days).
Average UV index in December
Devils Tower, 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, April, November and December (UV index 2).
Average cloud cover in December
Devils Tower, WY
- Average cloud cover in December: 39
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in December
Devils Tower, 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).
Devils Tower, Wyoming, USA
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