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 brings the lowest temperatures, with an average high of 18.9°F (-7.3°C) and an average low of 2.5°F (-16.4°C).Humidity
In December, the average relative humidity is 92%.Rainfall
In Yanceys, in December, it is raining for 4.8 days, with typically 1.85" (47mm) of accumulated precipitation. In Yanceys, during the entire year, the rain falls for 102.8 days and collects up to 23.98" (609mm) of precipitation.Snowfall
Months with snowfall are January through December. In Yanceys, in December, during 24.2 snowfall days, 13.74" (349mm) of snow is typically accumulated. In Yanceys, during the entire year, snow falls for 186.1 days and aggregates up to 135.16" (3433mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:40 am and sunset at 4:41 pm. On the last day of December, sunrise is at 7:59 am and sunset at 4:50 pm MST.
Sunshine
With an average of 3.6h of sunshine, December has the least sunshine of the year.UV index
January through April, October through December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the maximum UV index of 1 suggests these recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Frequently asked questions
What are the coldest months in Yanceys?
How cold is December in Yanceys?
What is the average humidity in December in Yanceys?
How many days does it rain in December in Yanceys?
How many days does it snow in December in Yanceys?
What is the month with the shortest days in Yanceys?
What is the average length of the day in December in Yanceys?
When are sunrise and sunset in December in Yanceys?
What is the month with the least sunshine in Yanceys?
How many hours of sunshine does Yanceys have in December?
What is the month with the lowest UV index in Yanceys?
What is the UV index intensity in December in Yanceys?
Average temperature in December
Yanceys, WY
- Average high temperature in December: 18.9°F
The warmest month (with the highest average high temperature) is July (70.9°F).
The month with the lowest average high temperature is December (18.9°F).
- Average low temperature in December: 2.5°F
The month with the highest average low temperature is July (43.2°F).
The coldest month (with the lowest average low temperature) is December (2.5°F).
Average pressure in December
Yanceys, WY
- Average pressure in December: 30.22"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Yanceys, WY
- Average wind speed in December: 6.6mph
The windiest months (with the highest average wind speed) are February and June (7.3mph).
The calmest month (with the lowest average wind speed) is May (6mph).
Average humidity in December
Yanceys, WY
- Average humidity in December: 92%
The months with the highest relative humidity are February and March (93%).
The months with the lowest relative humidity are July and August (51%).
Average rainfall in December
Yanceys, WY
- Average rainfall in December: 1.85"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is July (1.02").
Average rainfall days in December
Yanceys, WY
- Average rainfall days in December: 4.8 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (2.8 days).
Average snowfall in December
Yanceys, WY
- Average snowfall in December: 13.74"
The month with the highest snowfall is April (19.69").
The month with the least snowfall is July (0.24").
Average snowfall days in December
Yanceys, WY
- Average snowfall days in December: 24.2 days
The month with the highest number of snowfall days is March (25.6 days).
The month with the least snowfall days is July (0.4 days).
Average daylight in December /
Average sunshine in December
Yanceys, 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 48min).
- Average sunshine in December: 3h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in December
Yanceys, WY
- Average sunshine days in December: 7.6 days
The month with the most sunshine days is September (15.6 days).
The month with the least sunshine days is May (3.1 days).
Average UV index in December
Yanceys, WY
- Average UV index in December: 1
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).
Average cloud cover in December
Yanceys, WY
- Average cloud cover in December: 67
The month with the most cloud cover is February (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility in December
Yanceys, WY
- Average visibility in December: 4mi
The months with the highest visibility are June, July, August and September (6mi).
The month with the lowest visibility is February (3mi).
Yanceys, Wyoming, USA
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