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
The transition into January marks the average high-temperature at a cold 32.5°F (0.3°C), differing minimally from December's 30.4°F (-0.9°C). During the month of January, an average temperature of 20.7°F (-6.3°C) is noted during the nights.Humidity
The most humid month is January, with an average relative humidity of 92%.Rainfall
The month with the most rainfall is January, when the rain falls for 10.4 days and typically aggregates up to 2.8" (71mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. January is the month with the most snowfall. Snow falls for 12.2 days and accumulates 12.36" (314mm) of snow.Daylight
The average length of the day in January is 8h and 58min.On the first day of the month, sunrise is at 7:32 am and sunset at 4:03 pm. On the last day of January, sunrise is at 7:12 am and sunset at 4:43 pm PST.
Sunshine
January and December, with an average of 3.6h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index are January, February, November 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 unprotected exposure to Sun's UV rays for the ordinary person.Note: The average daily UV index of 1 in January transforms into the following instructions:
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. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is January?
What is the most humid month?
What is the average humidity in January?
What is the rainiest month in Smelterville?
How many days does it rain in January?
When does it snow the most?
How many days does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Smelterville have in January?
When is the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Smelterville, ID
- Average high temperature in January: 32.5°F
The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (30.4°F).
- Average low temperature in January: 20.7°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (19.8°F).
Average pressure in January
Smelterville, ID
- Average pressure in January: 30.19"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in January
Smelterville, ID
- Average wind speed in January: 4.1mph
The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest months (with the lowest average wind speed) are September and December (4mph).
Average humidity in January
Smelterville, ID
- Average humidity in January: 92%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (52%).
Average rainfall in January
Smelterville, ID
- Average rainfall in January: 2.8"
The wettest month (with the highest rainfall) is January (2.8").
The driest month (with the least rainfall) is July (0.51").
Average rainfall days in January
Smelterville, ID
- Average rainfall days in January: 10.4 days
The month with the highest number of rainy days is March (17.8 days).
The month with the least rainy days is August (6.3 days).
Average snowfall in January
Smelterville, ID
- Average snowfall in January: 12.36"
The month with the highest snowfall is January (12.36").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Smelterville, ID
- Average snowfall days in January: 12.2 days
The month with the highest number of snowfall days is December (13.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Smelterville, ID
- Average daylight in January: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in January: 3h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 3h and 36min).
Average sunshine days in January
Smelterville, ID
- Average sunshine days in January: 14.1 days
The month with the most sunshine days is July (22.9 days).
The month with the least sunshine days is March (8.7 days).
Average UV index in January
Smelterville, 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, February, November and December (UV index 1).
Average cloud cover in January
Smelterville, ID
- Average cloud cover in January: 64
The months with the most cloud cover are January, February and December (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in January
Smelterville, ID
- Average visibility in January: 3mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (3mi).
Smelterville, Idaho, USA
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