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
In January, Terreton's weather conditions record an average high-temperature of a still freezing cold 27.9°F (-2.3°C), demonstrating little divergence from the preceding month. Terreton throughout January, records an average low-temperature of 13.8°F (-10.1°C).Humidity
The most humid month in Terreton is January, with an average relative humidity of 90%.Rainfall
In Terreton, in January, it is raining for 7.8 days, with typically 1.06" (27mm) of accumulated precipitation. Throughout the year, there are 112.3 rainfall days, and 10.94" (278mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. The month with the most snowfall is January, when snow falls for 17.3 days and typically aggregates up to 8.31" (211mm) of snow.Daylight
The average length of the day in January is 9h and 22min.On the first day of January, sunrise is at 8:03 am and sunset at 5:02 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 5:38 pm MST.
Sunshine
January has the least sunshine of the year, with an average of 4.7h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 1 during January leads to these advisories:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in January?
What is the most humid month?
What is the average humidity in January?
How many days does it rain in January?
What is the snowiest month?
How many days does it snow in January?
How many hours of daylight does Terreton have in January?
When are sunrise and sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January?
What are the months with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Terreton, ID
- Average high temperature in January: 27.9°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is December (27.1°F).
- Average low temperature in January: 13.8°F
The month with the highest average low temperature is August (53.8°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).
Average pressure in January
Terreton, ID
- Average pressure in January: 30.29"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 January
Terreton, ID
- Average wind speed in January: 4.9mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is January (4.9mph).
Average humidity in January
Terreton, ID
- Average humidity in January: 90%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (37%).
Average rainfall in January
Terreton, ID
- Average rainfall in January: 1.06"
The wettest month (with the highest rainfall) is May (1.26").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in January
Terreton, ID
- Average rainfall days in January: 7.8 days
The month with the highest number of rainy days is April (14.2 days).
The month with the least rainy days is July (5.8 days).
Average snowfall in January
Terreton, ID
- Average snowfall in January: 8.31"
The month with the highest snowfall is January (8.31").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Terreton, ID
- Average snowfall days in January: 17.3 days
The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
Terreton, 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 4min
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 42min).
Average sunshine days in January
Terreton, ID
- Average sunshine days in January: 13.4 days
The month with the most sunshine days is July (22.3 days).
The month with the least sunshine days is February (9.9 days).
Average UV index in January
Terreton, ID
- Average UV index in January: 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 January
Terreton, ID
- Average cloud cover in January: 51
The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in January
Terreton, ID
- Average visibility in January: 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).
Terreton, Idaho, USA
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