December weather forecastCobalt, ID
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Cobalt, Idaho, with an average temperature ranging between max 25.2°F (-3.8°C) and min 9.5°F (-12.5°C).Temperature
December is Cobalt's coldest month, registering average high temperatures of 25.2°F (-3.8°C) and lows of 9.5°F (-12.5°C).Humidity
In Cobalt, Idaho, the average relative humidity in December is 86%.Rainfall
In Cobalt, in December, it is raining for 6.8 days, with typically 0.55" (14mm) of accumulated precipitation. Throughout the year, in Cobalt, there are 129.5 rainfall days, and 12.4" (315mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall in Cobalt. In December, in Cobalt, it is snowing for 10.4 days. Throughout December, 2.8" (71mm) of snow is accumulated. In Cobalt, during the entire year, snow falls for 63.5 days and aggregates up to 22.76" (578mm) of snow.Daylight
With an average of 8h and 48min of daylight, December has the shortest days of the year in Cobalt, Idaho.On the first day of December, sunrise is at 7:56 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 8:15 am and sunset at 5:05 pm MST.
Sunshine
In December, the average sunshine is 5.2h.UV index
January, February 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 threat to health from exposure to the Sun's UV radiation for the average person.Note: In December, a daily UV index of 1 turns into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cobalt, ID
- Average high temperature in December: 25.2°F
The warmest month (with the highest average high temperature) is July (75.7°F).
The month with the lowest average high temperature is December (25.2°F).
- Average low temperature in December: 9.5°F
The month with the highest average low temperature is August (47.5°F).
The coldest months (with the lowest average low temperature) are January and December (9.5°F).
Average pressure in December
Cobalt, ID
- Average pressure in December: 30.23"Hg
The month with the highest atmospheric pressure is January (30.25"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Cobalt, ID
- Average wind speed in December: 4.9mph
The windiest months (with the highest average wind speed) are March and April (5.2mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Cobalt, ID
- Average humidity in December: 86%
The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is August (43%).
Average rainfall in December
Cobalt, ID
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is June (2.05").
The driest months (with the least rainfall) are July and August (0.51").
Average rainfall days in December
Cobalt, ID
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in December
Cobalt, ID
- Average snowfall in December: 2.8"
The month with the highest snowfall is February (5").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Cobalt, ID
- Average snowfall days in December: 10.4 days
The month with the highest number of snowfall days is February (12.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Cobalt, ID
- Average daylight in December: 8h and 48min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 5h and 12min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in December
Cobalt, ID
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is July (19.4 days).
The month with the least sunshine days is April (7.7 days).
Average UV index in December
Cobalt, ID
- 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 and December (UV index 1).
Average cloud cover in December
Cobalt, ID
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in December
Cobalt, 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, March and December (4mi).
