December weather forecastBern, ID
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Bern, Idaho, with an average temperature ranging between max 25.2°F (-3.8°C) and min 9.5°F (-12.5°C).Temperature
Bern experiences its lowest temperatures in December, with an average peak of 25.2°F (-3.8°C) and a low of 9.5°F (-12.5°C).Humidity
In December, the average relative humidity is 89%.Rainfall
In December, the rain falls for 8.5 days. Throughout December, 1.89" (48mm) of precipitation is accumulated. Throughout the year, in Bern, there are 117.5 rainfall days, and 20.24" (514mm) of precipitation is accumulated.Snowfall
Months with snowfall in Bern are January through June, September through December. In December, it is snowing for 21.6 days. Throughout December, 14.49" (368mm) of snow is accumulated. Throughout the year, there are 116.1 snowfall days, and 91.14" (2315mm) of snow is accumulated.Daylight
December has the shortest days of the year in Bern, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:35 am and sunset at 4:53 pm. On the last day of December, sunrise is at 7:54 am and sunset at 5:03 pm MST.
Sunshine
In December, the average sunshine in Bern is 4.7h.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 threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In December, an average UV index of 1 transforms into the following instructions:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. To avoid the Sun's strongest rays, limit exposure around the mid-day period. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bern, ID
- Average high temperature in December: 25.2°F
The warmest month (with the highest average high temperature) is July (79°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 July (48.9°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).
Average pressure in December
Bern, 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
Bern, ID
- Average wind speed in December: 4.2mph
The windiest month (with the highest average wind speed) is June (5.8mph).
The calmest months (with the lowest average wind speed) are January and December (4.2mph).
Average humidity in December
Bern, ID
- Average humidity in December: 89%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is August (42%).
Average rainfall in December
Bern, ID
- Average rainfall in December: 1.89"
The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is July (0.63").
Average rainfall days in December
Bern, ID
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (6 days).
Average snowfall in December
Bern, ID
- Average snowfall in December: 14.49"
The month with the highest snowfall is February (18.39").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Bern, ID
- Average snowfall days in December: 21.6 days
The month with the highest number of snowfall days is December (21.6 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Bern, ID
- Average daylight in December: 9h and 6min
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 6min).
- Average sunshine in December: 4h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in December
Bern, ID
- Average sunshine days in December: 9.4 days
The month with the most sunshine days is July (18.8 days).
The month with the least sunshine days is February (6.8 days).
Average UV index in December
Bern, 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
Bern, ID
- Average cloud cover in December: 55
The month with the most cloud cover is February (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in December
Bern, 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).
