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
Star's average high-temperature in January is a still cold 36.3°F (2.4°C), indicating a subtle variation from December. Throughout January, a steady low-temperature average of 24.3°F (-4.3°C) is noted.Humidity
With an average relative humidity of 80%, January is the most humid month.Rainfall
In Star, during January, the rain falls for 11.2 days and regularly aggregates up to 1.85" (47mm) of precipitation. In Star, during the entire year, the rain falls for 118.3 days and collects up to 14.13" (359mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Star, in January, during 7.4 snowfall days, 4.88" (124mm) of snow is typically accumulated. In Star, during the entire year, snow falls for 29 days and aggregates up to 17.4" (442mm) of snow.Daylight
The average length of the day in January is 9h and 23min.On the first day of January, sunrise is at 8:19 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 8:03 am and sunset at 5:55 pm MST.
Sunshine
The average sunshine in January is 5.7h.UV index
The months with the lowest UV index in Star, Idaho, are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. When the Sun is at its strongest around midday, find shade and limit exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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?
How many days does it rain in January in Star?
How much does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
How many hours of sunshine does Star have in January?
What is the month with the lowest UV index?
What is the UV index reading in January in Star?
Average temperature in January
Star, ID
- Average high temperature in January: 36.3°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is December (35.1°F).
- Average low temperature in January: 24.3°F
The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is December (23.9°F).
Average pressure in January
Star, ID
- Average pressure in January: 30.25"Hg
The month with the highest atmospheric pressure is January (30.25"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in January
Star, ID
- Average wind speed in January: 4.8mph
The windiest months (with the highest average wind speed) are March and April (6.8mph).
The calmest month (with the lowest average wind speed) is January (4.8mph).
Average humidity in January
Star, ID
- Average humidity in January: 80%
The month with the highest relative humidity is January (80%).
The months with the lowest relative humidity are July and August (31%).
Average rainfall in January
Star, ID
- Average rainfall in January: 1.85"
The wettest month (with the highest rainfall) is March (2.2").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in January
Star, ID
- Average rainfall days in January: 11.2 days
The month with the highest number of rainy days is March (17 days).
The month with the least rainy days is July (4 days).
Average snowfall in January
Star, ID
- Average snowfall in January: 4.88"
The month with the highest snowfall is December (5.31").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Star, ID
- Average snowfall days in January: 7.4 days
The month with the highest number of snowfall days is December (8.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Star, 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: 5h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in January
Star, ID
- Average sunshine days in January: 15.6 days
The month with the most sunshine days is July (23.1 days).
The month with the least sunshine days is March (12.1 days).
Average UV index in January
Star, ID
- Average UV index in January: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Star, ID
- Average cloud cover in January: 40
The month with the most cloud cover is December (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in January
Star, ID
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Star, Idaho, USA
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