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
December, characterized by an average high temperature of 29.7°F (-1.3°C) and a low temperature of 15.6°F (-9.1°C), is generally the coldest month in Powell.Humidity
In Powell, Wyoming, the average relative humidity in December is 74%.Rainfall
In December, in Powell, the rain falls for 4.9 days. Throughout December, 0.35" (9mm) of precipitation is accumulated. Throughout the year, in Powell, there are 105.7 rainfall days, and 8.19" (208mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. In December, in Powell, it is snowing for 7.5 days. Throughout December, 2.01" (51mm) of snow is accumulated. In Powell, during the entire year, snow falls for 52.1 days and aggregates up to 16.97" (431mm) of snow.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year in Powell.On the first day of the month, sunrise is at 7:32 am and sunset at 4:35 pm. On the last day of December, sunrise is at 7:52 am and sunset at 4:44 pm MST.
Sunshine
The months with the least sunshine in Powell are January, February and December, with an average of 6.7h of sunshine.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index, 2 during December, leads to the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Powell?
How cold is December in Powell?
What is the average humidity in December in Powell?
How many days does it rain in December in Powell?
How much does it snow in Powell in December?
What is the month with the shortest days in Powell?
What is the average length of the day in December in Powell?
When is the sunrise / sunset in December in Powell?
What are the months with the least sunshine in Powell?
How long on average sun shines in December in Powell?
What are the months with the lowest UV index in Powell?
What is the UV index reading in December in Powell?
Average temperature in December
Powell, WY
- Average high temperature in December: 29.7°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 (29.7°F).
- Average low temperature in December: 15.6°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is December (15.6°F).
Average pressure in December
Powell, WY
- Average pressure in December: 30.16"Hg
The months with the highest atmospheric pressure are January and December (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Powell, WY
- Average wind speed in December: 6.5mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in December
Powell, WY
- Average humidity in December: 74%
The month with the highest relative humidity is January (76%).
The months with the lowest relative humidity are July and August (37%).
Average rainfall in December
Powell, WY
- Average rainfall in December: 0.35"
The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is January (0.31").
Average rainfall days in December
Powell, WY
- Average rainfall days in December: 4.9 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is December (4.9 days).
Average snowfall in December
Powell, WY
- Average snowfall in December: 2.01"
The month with the highest snowfall is February (3.9").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Powell, WY
- Average snowfall days in December: 7.5 days
The month with the highest number of snowfall days is February (11 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Powell, 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: 6h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 42min).
Average sunshine days in December
Powell, WY
- Average sunshine days in December: 21.7 days
The month with the most sunshine days is December (21.7 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in December
Powell, WY
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Powell, WY
- Average cloud cover in December: 28
The month with the most cloud cover is February (Cloud cover 32).
The month with the least cloud cover is July (Cloud cover 13).
Average visibility in December
Powell, 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).
Powell, Wyoming, USA
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