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
The coldest period tends to be December, when average temperatures fluctuate between a high of 28.4°F (-2°C) and a low of 13.1°F (-10.5°C).Humidity
The average relative humidity in December is 74%.Rainfall
In Fort Washakie, in December, during 6.8 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. Throughout the year, there are 92.3 rainfall days, and 9.92" (252mm) of precipitation is accumulated.Snowfall
Months with snowfall in Fort Washakie, Wyoming, are January through May, September through December. In December, it is snowing for 9.9 days. Throughout December, 3.58" (91mm) of snow is accumulated. Throughout the year, there are 56.6 snowfall days, and 39.65" (1007mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:27 am and sunset at 4:41 pm. On the last day of December, sunrise is at 7:46 am and sunset at 4:51 pm MST.
Sunshine
The average sunshine in December is 7h.UV index
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Fort Washakie. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 2 in December transforms into this advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
How cold is it in December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Fort Washakie have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Fort Washakie have in December?
What is the month with the lowest UV index in Fort Washakie?
What is the UV index intensity in December?
Average temperature in December
Fort Washakie, WY
- Average high temperature in December: 28.4°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (28.4°F).
- Average low temperature in December: 13.1°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is December (13.1°F).
Average pressure in December
Fort Washakie, WY
- Average pressure in December: 30.21"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Fort Washakie, WY
- Average wind speed in December: 7.2mph
The windiest month (with the highest average wind speed) is March (7.7mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in December
Fort Washakie, WY
- Average humidity in December: 74%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is August (34%).
Average rainfall in December
Fort Washakie, WY
- Average rainfall in December: 0.51"
The wettest month (with the highest rainfall) is April (1.81").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in December
Fort Washakie, WY
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is May (12.8 days).
The month with the least rainy days is November (4.8 days).
Average snowfall in December
Fort Washakie, WY
- Average snowfall in December: 3.58"
The month with the highest snowfall is April (8.15").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Fort Washakie, WY
- Average snowfall days in December: 9.9 days
The month with the highest number of snowfall days is February (10.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Fort Washakie, WY
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 7h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and February (Average sunshine: 6h and 54min).
Average sunshine days in December
Fort Washakie, WY
- Average sunshine days in December: 19.1 days
The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is April (12.3 days).
Average UV index in December
Fort Washakie, 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
Fort Washakie, WY
- Average cloud cover in December: 25
The months with the most cloud cover are February and April (Cloud cover 28).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in December
Fort Washakie, 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).
Fort Washakie, Wyoming, USA
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