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
Tetonia experiences its lowest temperatures in December, with an average peak of 23.9°F (-4.5°C) and a low of 9.5°F (-12.5°C).Humidity
In Tetonia, the average relative humidity in December is 90%.Rainfall
In Tetonia, during December, the rain falls for 5.9 days and regularly aggregates up to 2.4" (61mm) of precipitation. Throughout the year, in Tetonia, there are 110.1 rainfall days, and 23.35" (593mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. In December, in Tetonia, Idaho, it is snowing for 21.8 days. Throughout December, 19.41" (493mm) of snow is accumulated. In Tetonia, Idaho, during the entire year, snow falls for 125.3 days and aggregates up to 120.47" (3060mm) of snow.Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year in Tetonia.On the first day of December, 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
The average sunshine in December in Tetonia is 4.2h.UV index
January through March and December, with an average maximum UV index of 1, are months with the lowest UV index in Tetonia. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 1 during December leads to these instructions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. It's recommended to limit sun exposure when its radiation is at its peak during midday. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the coldest time of year in Tetonia?
How cold is it in Tetonia in December?
What is the average humidity in December in Tetonia?
How much does it rain in Tetonia in December?
How many days does it snow in December in Tetonia?
What is the month with the shortest days in Tetonia?
How many hours of daylight does Tetonia have in December?
What time are sunrise and sunset in December in Tetonia?
How many hours of sunshine does Tetonia have in December?
When is the lowest UV index in Tetonia?
What is the UV index reading in December in Tetonia?
Average temperature in December
Tetonia, 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
Tetonia, 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
Tetonia, 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
Tetonia, 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
Tetonia, 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
Tetonia, 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
Tetonia, 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
Tetonia, 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
Tetonia, 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
Tetonia, 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
Tetonia, 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
Tetonia, 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
Tetonia, 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).
Tetonia, Idaho, USA
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