Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December, with its average high-temperature of 23.9°F (-4.5°C) and an average low-temperature of 9.5°F (-12.5°C), holds the record as the coldest month.Humidity
In Twin Forks, the average relative humidity in December is 90%.Rainfall
In Twin Forks, during December, the rain falls for 5.9 days and regularly aggregates up to 2.4" (61mm) of precipitation. Throughout the year, there are 110.1 rainfall days, and 23.35" (593mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall. In Twin Forks, during December, snow falls for 21.8 days and regularly aggregates up to 19.41" (493mm) of snow. Throughout the year, there are 125.3 snowfall days, and 120.47" (3060mm) of snow is accumulated.Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year.On the first day of December in Twin Forks, sunrise is at 7:39 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 4:57 pm MST.
Sunshine
In Twin Forks, the average sunshine in December is 4.2h.UV index
The months with the lowest UV index are January through March and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: An average maximum UV index of 1 in December leads to these recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. 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
What are the coldest months?
How cold is December in Twin Forks?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Twin Forks have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Twin Forks have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Twin Forks, ID
- Average high temperature in December: 23.9°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is December (23.9°F).
- Average low temperature in December: 9.5°F
The month with the highest average low temperature is July (48.7°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).
Average pressure in December
Twin Forks, ID
- Average pressure in December: 30.25"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Twin Forks, ID
- Average wind speed in December: 4.6mph
The windiest month (with the highest average wind speed) is June (6.3mph).
The calmest months (with the lowest average wind speed) are January and December (4.6mph).
Average humidity in December
Twin Forks, ID
- Average humidity in December: 90%
The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is August (45%).
Average rainfall in December
Twin Forks, ID
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is February (2.91").
The driest month (with the least rainfall) is July (0.71").
Average rainfall days in December
Twin Forks, ID
- Average rainfall days in December: 5.9 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in December
Twin Forks, ID
- Average snowfall in December: 19.41"
The month with the highest snowfall is January (24.06").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Twin Forks, ID
- Average snowfall days in December: 21.8 days
The month with the highest number of snowfall days is December (21.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Twin Forks, 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: 4h and 1min
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 0min).
Average sunshine days in December
Twin Forks, ID
- Average sunshine days in December: 9 days
The month with the most sunshine days is July (20.6 days).
The month with the least sunshine days is February (7.3 days).
Average UV index in December
Twin Forks, 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, March and December (UV index 1).
Average cloud cover in December
Twin Forks, ID
- Average cloud cover in December: 60
The month with the most cloud cover is February (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in December
Twin Forks, 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).
Twin Forks, Idaho, USA
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