December weather forecastGreencreek, ID
December
Weather in December
The first month of the winter, December, is also a wintry month in Greencreek, Idaho, with an average temperature varying between 32.5°F (0.3°C) and 20.7°F (-6.3°C).Temperature
Greencreek experiences its lowest temperatures in December, with an average peak of 32.5°F (0.3°C) and a low of 20.7°F (-6.3°C).Humidity
The average relative humidity in December is 88%.Rainfall
In Greencreek, Idaho, during December, the rain falls for 6.6 days and regularly aggregates up to 2.83" (72mm) of precipitation. Throughout the year, there are 133.5 rainfall days, and 28.9" (734mm) of precipitation is accumulated.Snowfall
Months with snowfall in Greencreek, Idaho, are January through June, September through December. In Greencreek, in December, during 19.9 snowfall days, 19.69" (500mm) of snow is typically accumulated. Throughout the year, there are 112.2 snowfall days, and 105.79" (2687mm) of snow is accumulated.Daylight
With an average of 8h and 42min of daylight, December has the shortest days of the year.On the first day of December in Greencreek, sunrise is at 7:07 am and sunset at 4:01 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:09 pm PST.
Sunshine
With an average of 4.2h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are February and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.Note: The average daily UV index of 1 in December transforms into the following instructions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Greencreek, 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
Greencreek, 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
Greencreek, 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
Greencreek, 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
Greencreek, 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
Greencreek, 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
Greencreek, 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
Greencreek, 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
Greencreek, 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
Greencreek, 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
Greencreek, 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
Greencreek, 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
Greencreek, 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).
