December weather forecastCottonwood, ID
December
Weather in December
The first month of the winter, December, is also a wintry month in Cottonwood, Idaho, with temperature in the range of an average low of 20.7°F (-6.3°C) and an average high of 32.5°F (0.3°C).Temperature
December is the coldest month, exhibiting average temperatures of 32.5°F (0.3°C) at the peak and 20.7°F (-6.3°C) at the base.Humidity
In Cottonwood, the average relative humidity in December is 88%.Rainfall
In Cottonwood, during December, the rain falls for 6.6 days and regularly aggregates up to 2.83" (72mm) of precipitation. In Cottonwood, during the entire year, the rain falls for 133.5 days and collects up to 28.9" (734mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. In December, it is snowing for 19.9 days. Throughout December, 19.69" (500mm) of snow is accumulated. Throughout the year, there are 112.2 snowfall days, and 105.79" (2687mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 7:07 am and sunset at 4:01 pm. On the last day of December, sunrise is at 7:27 am and sunset at 4:10 pm PST.
Sunshine
December has the least sunshine of the year, with an average of 4.2h of sunshine.UV index
The months with the lowest UV index are February and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cottonwood, ID
- Average high temperature in December: 32.5°F
The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (32.5°F).
- Average low temperature in December: 20.7°F
The month with the highest average low temperature is August (54.7°F).
The coldest month (with the lowest average low temperature) is December (20.7°F).
Average pressure in December
Cottonwood, ID
- Average pressure in December: 30.19"Hg
The month with the highest atmospheric pressure is January (30.21"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).
Average wind speed in December
Cottonwood, ID
- Average wind speed in December: 4.7mph
The windiest months (with the highest average wind speed) are January, February, March and November (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in December
Cottonwood, ID
- Average humidity in December: 88%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (44%).
Average rainfall in December
Cottonwood, ID
- Average rainfall in December: 2.83"
The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is July (0.63").
Average rainfall days in December
Cottonwood, ID
- Average rainfall days in December: 6.6 days
The month with the highest number of rainy days is April (17.8 days).
The month with the least rainy days is January (6 days).
Average snowfall in December
Cottonwood, ID
- Average snowfall in December: 19.69"
The month with the highest snowfall is February (23.11").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Cottonwood, ID
- Average snowfall days in December: 19.9 days
The month with the highest number of snowfall days is December (19.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Cottonwood, ID
- Average daylight in December: 8h and 42min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 4h and 12min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in December
Cottonwood, ID
- Average sunshine days in December: 10.7 days
The month with the most sunshine days is July (21.2 days).
The month with the least sunshine days is March (7.3 days).
Average UV index in December
Cottonwood, ID
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in December
Cottonwood, ID
- Average cloud cover in December: 57
The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in December
Cottonwood, ID
- Average visibility in December: 4mi
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 (4mi).
