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
Temperature records mark December as the coldest month, with highs averaging 27.1°F (-2.7°C) and lows at 13.5°F (-10.3°C).Humidity
The average relative humidity in December is 79%.Rainfall
In December, the rain falls for 4.2 days. Throughout December, 0.63" (16mm) of precipitation is accumulated. Throughout the year, there are 84.4 rainfall days, and 8.78" (223mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. December is the month with the most snowfall. Snow falls for 10 days and accumulates 4.65" (118mm) of snow.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 7:17 am and sunset at 4:34 pm. On the last day of December, sunrise is at 7:36 am and sunset at 4:43 pm MST.
Sunshine
In Alcova, the average sunshine in December is 6.3h.UV index
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 translates into these guidelines:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
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 in Alcova?
How much does it rain in December?
When does it snow the most?
How much does it snow in December?
What is the month with the shortest days in Alcova?
How many hours of daylight does Alcova have in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Alcova, WY
- Average high temperature in December: 27.1°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (27.1°F).
- Average low temperature in December: 13.5°F
The month with the highest average low temperature is July (59.2°F).
The coldest months (with the lowest average low temperature) are January and December (13.5°F).
Average pressure in December
Alcova, WY
- Average pressure in December: 30.17"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
Alcova, WY
- Average wind speed in December: 10.9mph
The windiest months (with the highest average wind speed) are January and November (11.1mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity in December
Alcova, WY
- Average humidity in December: 79%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (35%).
Average rainfall in December
Alcova, WY
- Average rainfall in December: 0.63"
The wettest month (with the highest rainfall) is May (1.34").
The driest month (with the least rainfall) is August (0.35").
Average rainfall days in December
Alcova, WY
- Average rainfall days in December: 4.2 days
The month with the highest number of rainy days is May (12.4 days).
The month with the least rainy days is January (3.7 days).
Average snowfall in December
Alcova, WY
- Average snowfall in December: 4.65"
The month with the highest snowfall is December (4.65").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Alcova, WY
- Average snowfall days in December: 10 days
The month with the highest number of snowfall days is February (10.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Alcova, 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: 6h and 2min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 6min).
Average sunshine days in December
Alcova, WY
- Average sunshine days in December: 20 days
The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is April (13.3 days).
Average UV index in December
Alcova, WY
- Average UV index in December: 2
The months with the highest UV index are July and August (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
Alcova, WY
- Average cloud cover in December: 35
The month with the most cloud cover is February (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in December
Alcova, 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).
Alcova, Wyoming, USA
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