December weather forecastUcon, ID
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Ucon, Idaho, with an average temperature varying between 27.1°F (-2.7°C) and 14.9°F (-9.5°C).Temperature
December, with its high-temperature average of 27.1°F (-2.7°C) and a low-temperature average of 14.9°F (-9.5°C), is the coldest month.Humidity
The average relative humidity in December is 87%.Rainfall
In December, the rain falls for 9.5 days. Throughout December, 0.94" (24mm) of precipitation is accumulated. In Ucon, during the entire year, the rain falls for 112.3 days and collects up to 10.94" (278mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. In December, it is snowing for 17.1 days. Throughout December, 6.22" (158mm) of snow is accumulated. In Ucon, during the entire year, snow falls for 79 days and aggregates up to 31.54" (801mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 7:42 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 5:01 pm MST.
Sunshine
The average sunshine in December in Ucon is 5.1h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: The UV index of 1 in December translates into these instructions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ucon, ID
- Average high temperature in December: 27.1°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is December (27.1°F).
- Average low temperature in December: 14.9°F
The month with the highest average low temperature is August (53.8°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).
Average pressure in December
Ucon, ID
- Average pressure in December: 30.26"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Ucon, ID
- Average wind speed in December: 5.1mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is January (4.9mph).
Average humidity in December
Ucon, ID
- Average humidity in December: 87%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (37%).
Average rainfall in December
Ucon, ID
- Average rainfall in December: 0.94"
The wettest month (with the highest rainfall) is May (1.26").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in December
Ucon, ID
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is April (14.2 days).
The month with the least rainy days is July (5.8 days).
Average snowfall in December
Ucon, ID
- Average snowfall in December: 6.22"
The month with the highest snowfall is January (8.31").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Ucon, ID
- Average snowfall days in December: 17.1 days
The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Ucon, ID
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 5h and 6min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in December
Ucon, ID
- Average sunshine days in December: 11.8 days
The month with the most sunshine days is July (22.3 days).
The month with the least sunshine days is February (9.9 days).
Average UV index in December
Ucon, 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 January and December (UV index 1).
Average cloud cover in December
Ucon, ID
- Average cloud cover in December: 50
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
Ucon, 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).





