Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
A minor adjustment in Tetonia's average high-temperature is noted with the start of January, touching a still freezing cold 25.7°F (-3.5°C) from December's 23.9°F (-4.5°C). During the January nights, an average temperature of 9.1°F (-12.7°C) is observed.Humidity
In January, the average relative humidity is 92%.Rainfall
In January, the rain falls for 4.5 days. Throughout January, 2.87" (73mm) of precipitation is accumulated. In Tetonia, during the entire year, the rain falls for 110.1 days and collects up to 23.35" (593mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. January is the month with the most snowfall. Snow falls for 19.2 days and accumulates 24.06" (611mm) of snow.Daylight
The average length of the day in January is 9h and 22min.On the first day of the month, sunrise is at 7:58 am and sunset at 4:57 pm. On the last day of January, sunrise is at 7:42 am and sunset at 5:33 pm MST.
Sunshine
The month with the least sunshine in Tetonia is January, with an average of 4h of sunshine.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 of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 1 during January translates into the following recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is January in Tetonia?
What is the average humidity in January?
How much does it rain in Tetonia in January?
What is the snowiest month?
How many days does it snow in January?
How many hours of daylight does Tetonia have in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January?
What is the month with the lowest UV index in Tetonia?
What is the UV index intensity in January?
Average temperature in January
Tetonia, ID
- Average high temperature in January: 25.7°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 January: 9.1°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 January
Tetonia, ID
- Average pressure in January: 30.27"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 January
Tetonia, ID
- Average wind speed in January: 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 January
Tetonia, ID
- Average humidity in January: 92%
The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is August (45%).
Average rainfall in January
Tetonia, ID
- Average rainfall in January: 2.87"
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 January
Tetonia, ID
- Average rainfall days in January: 4.5 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 January
Tetonia, ID
- Average snowfall in January: 24.06"
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 January
Tetonia, ID
- Average snowfall days in January: 19.2 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 January /
Average sunshine in January
Tetonia, ID
- Average daylight in January: 9h and 2min
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 January: 4h and 0min
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 January
Tetonia, ID
- Average sunshine days in January: 12.3 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 January
Tetonia, ID
- Average UV index in January: 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 January
Tetonia, ID
- Average cloud cover in January: 61
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 January
Tetonia, ID
- Average visibility in January: 3mi
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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