December weather forecastMoran, WY
December
Weather in December
December, the first month of the winter in Moran, is still a freezing cold month, with an average temperature varying between 3.7°F (-15.7°C) and 21.7°F (-5.7°C).Temperature
December, with average temperatures reaching a high of 21.7°F (-5.7°C) and a low of 3.7°F (-15.7°C), is the coldest month.Humidity
In December, the average relative humidity is 91%.Rainfall
In Moran, Wyoming, in December, during 5.3 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. Throughout the year, in Moran, there are 111.3 rainfall days, and 29.09" (739mm) of precipitation is accumulated.Snowfall
January through July, September through December are months with snowfall. In Moran, in December, during 22.7 snowfall days, 23.74" (603mm) of snow is typically accumulated. In Moran, Wyoming, during the entire year, snow falls for 153.5 days and aggregates up to 167.44" (4253mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 0min of daylight.On the first day of December in Moran, sunrise is at 7:36 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 4:54 pm MST.
Sunshine
In December, the average sunshine is 4.3h.UV index
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.Note: The UV index of 1 during December translates into the following guidance:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. When the Sun is at its strongest around midday, find shade and limit exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Moran, WY
- Average high temperature in December: 21.7°F
The warmest month (with the highest average high temperature) is July (73.9°F).
The month with the lowest average high temperature is December (21.7°F).
- Average low temperature in December: 3.7°F
The month with the highest average low temperature is July (44.2°F).
The coldest month (with the lowest average low temperature) is December (3.7°F).
Average pressure in December
Moran, WY
- Average pressure in December: 30.24"Hg
The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Moran, WY
- Average wind speed in December: 4.6mph
The windiest month (with the highest average wind speed) is June (6.1mph).
The calmest months (with the lowest average wind speed) are January and December (4.6mph).
Average humidity in December
Moran, WY
- Average humidity in December: 91%
The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is August (49%).
Average rainfall in December
Moran, WY
- Average rainfall in December: 2.83"
The wettest month (with the highest rainfall) is February (3.54").
The driest months (with the least rainfall) are July and August (1.02").
Average rainfall days in December
Moran, WY
- Average rainfall days in December: 5.3 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (3.5 days).
Average snowfall in December
Moran, WY
- Average snowfall in December: 23.74"
The month with the highest snowfall is February (29.65").
The month with the least snowfall is August (0").
Average snowfall days in December
Moran, WY
- Average snowfall days in December: 22.7 days
The month with the highest number of snowfall days is March (23.8 days).
The months with the least snowfall days are July and August (0.2 days).
Average daylight in December /
Average sunshine in December
Moran, WY
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 4h and 18min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in December
Moran, WY
- Average sunshine days in December: 8.8 days
The month with the most sunshine days is September (16.7 days).
The month with the least sunshine days is February (5.2 days).
Average UV index in December
Moran, 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, October, November and December (UV index 1).
Average cloud cover in December
Moran, WY
- Average cloud cover in December: 61
The month with the most cloud cover is February (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in December
Moran, WY
- Average visibility in December: 3mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (3mi).
