December weather forecastArimo, ID
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Arimo, Idaho, with temperature in the range of an average low of 16.3°F (-8.7°C) and an average high of 28.9°F (-1.7°C).Temperature
December is the coldest month, exhibiting average temperatures of 28.9°F (-1.7°C) at the peak and 16.3°F (-8.7°C) at the base.Humidity
In December, the average relative humidity is 85%.Rainfall
In Arimo, in December, during 8.1 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. In Arimo, during the entire year, the rain falls for 118.3 days and collects up to 16.42" (417mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. In Arimo, during December, snow falls for 15.6 days and regularly aggregates up to 9.88" (251mm) of snow. In Arimo, during the entire year, snow falls for 68.7 days and aggregates up to 48.82" (1240mm) of snow.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:39 am and sunset at 4:56 pm. On the last day of December, sunrise is at 7:58 am and sunset at 5:05 pm MST.
Sunshine
In Arimo, the average sunshine in December is 5h.UV index
In Arimo, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: The UV index of 2 during December translates into the following guidance:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Warning! The reflection from snow can nearly magnify 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
Arimo, ID
- Average high temperature in December: 28.9°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is December (28.9°F).
- Average low temperature in December: 16.3°F
The month with the highest average low temperature is July (56.3°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in December
Arimo, ID
- Average pressure in December: 30.25"Hg
The month with the highest atmospheric pressure is January (30.3"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Arimo, ID
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is January (4.8mph).
Average humidity in December
Arimo, ID
- Average humidity in December: 85%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (35%).
Average rainfall in December
Arimo, ID
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is February (2.05").
The driest month (with the least rainfall) is July (0.55").
Average rainfall days in December
Arimo, ID
- Average rainfall days in December: 8.1 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in December
Arimo, ID
- Average snowfall in December: 9.88"
The month with the highest snowfall is January (13.78").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Arimo, ID
- Average snowfall days in December: 15.6 days
The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Arimo, ID
- Average daylight in December: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 5h and 0min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in December
Arimo, ID
- Average sunshine days in December: 13.2 days
The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is February (9.9 days).
Average UV index in December
Arimo, ID
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Arimo, ID
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in December
Arimo, ID
- Average visibility in December: 4mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
