December weather forecastHerbert, ID
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Herbert, Idaho, with an average temperature fluctuating between 26.6°F (-3°C) and 14.9°F (-9.5°C).Temperature
December is the coldest month, with the temperature often reaching an average high of 26.6°F (-3°C) and an average low of 14.9°F (-9.5°C).Humidity
In December, the average relative humidity is 87%.Rainfall
In Herbert, during December, the rain falls for 9.3 days and regularly aggregates up to 0.87" (22mm) of precipitation. In Herbert, during the entire year, the rain falls for 120.3 days and collects up to 11.02" (280mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Herbert, during December, snow falls for 17.6 days and regularly aggregates up to 6.38" (162mm) of snow. In Herbert, during the entire year, snow falls for 84.8 days and aggregates up to 31.85" (809mm) 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 7:41 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 8:00 am and sunset at 4:59 pm MST.
Sunshine
In Herbert, the average sunshine in December is 5.1h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.Note: The UV index of 1 during December leads to these advisories:
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 protect against the Sun's most potent rays, avoid direct exposure around midday. Enhance your sun protection with tightly woven, yet airy clothing. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Herbert, ID
- Average high temperature in December: 26.6°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is December (26.6°F).
- Average low temperature in December: 14.9°F
The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure in December
Herbert, 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
Herbert, ID
- Average wind speed in December: 4.5mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is January (4.3mph).
Average humidity in December
Herbert, ID
- Average humidity in December: 87%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (38%).
Average rainfall in December
Herbert, ID
- Average rainfall in December: 0.87"
The wettest months (with the highest rainfall) are April and May (1.26").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in December
Herbert, ID
- Average rainfall days in December: 9.3 days
The month with the highest number of rainy days is April (14.9 days).
The month with the least rainy days is July (6.3 days).
Average snowfall in December
Herbert, ID
- Average snowfall in December: 6.38"
The month with the highest snowfall is January (8.9").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Herbert, ID
- Average snowfall days in December: 17.6 days
The months with the highest number of snowfall days are January and February (18.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Herbert, 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 30min).
Average sunshine days in December
Herbert, ID
- Average sunshine days in December: 11.4 days
The month with the most sunshine days is July (20.6 days).
The month with the least sunshine days is February (8.8 days).
Average UV index in December
Herbert, 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
Herbert, ID
- Average cloud cover in December: 50
The months with the most cloud cover are January and February (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in December
Herbert, 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).
