December weather forecastGlencoe, ID
December
Weather in December
December, the first month of the winter in Glencoe, is also a subzero cold month, with an average temperature ranging between min 9.9°F (-12.3°C) and max 25.5°F (-3.6°C).Temperature
December proves to be the coldest month, recording an average maximum temperature of 25.5°F (-3.6°C) and a minimum temperature of 9.9°F (-12.3°C).Humidity
In December, the average relative humidity is 89%.Rainfall
In Glencoe, during December, the rain falls for 5.5 days and regularly aggregates up to 1.22" (31mm) of precipitation. In Glencoe, during the entire year, the rain falls for 105.7 days and collects up to 16.69" (424mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. In Glencoe, in December, during 18.5 snowfall days, 9.09" (231mm) of snow is typically accumulated. Throughout the year, there are 104.6 snowfall days, and 63.58" (1615mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:34 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 5:04 pm MST.
Sunshine
In Glencoe, the average sunshine in December is 4.6h.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 1 in December converts into the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Glencoe, ID
- Average high temperature in December: 25.5°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is December (25.5°F).
- Average low temperature in December: 9.9°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is January (8.4°F).
Average pressure in December
Glencoe, ID
- Average pressure in December: 30.25"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Glencoe, ID
- Average wind speed in December: 4.4mph
The windiest month (with the highest average wind speed) is June (6mph).
The calmest month (with the lowest average wind speed) is January (4.3mph).
Average humidity in December
Glencoe, ID
- Average humidity in December: 89%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (42%).
Average rainfall in December
Glencoe, ID
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is May (2.28").
The driest month (with the least rainfall) is July (0.91").
Average rainfall days in December
Glencoe, ID
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in December
Glencoe, ID
- Average snowfall in December: 9.09"
The month with the highest snowfall is March (12.17").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Glencoe, ID
- Average snowfall days in December: 18.5 days
The month with the highest number of snowfall days is February (20 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Glencoe, ID
- Average daylight in December: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 36min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in December
Glencoe, ID
- Average sunshine days in December: 12.6 days
The month with the most sunshine days is July (18.4 days).
The month with the least sunshine days is February (8.6 days).
Average UV index in December
Glencoe, ID
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Glencoe, ID
- Average cloud cover in December: 56
The month with the most cloud cover is February (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in December
Glencoe, 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 and February (3mi).
