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
January's arrival registers an average high-temperature of a still icy 35.4°F (1.9°C), closely aligning with the temperature of the previous month. The average low-temperature of 25.5°F (-3.6°C) is witnessed during January.Humidity
The most humid month in Troy, Idaho, is January, with an average relative humidity of 87%.Rainfall
In Troy, in January, during 10.9 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. In Troy, during the entire year, the rain falls for 143.2 days and collects up to 20.51" (521mm) of precipitation.Snowfall
Months with snowfall in Troy, Idaho, are January through May, September through December. January is the month with the most snowfall in Troy, Idaho. Snow falls for 13.7 days and accumulates 12.56" (319mm) of snow.Daylight
In Troy, the average length of the day in January is 9h and 4min.On the first day of the month, sunrise is at 7:31 am and sunset at 4:09 pm. On the last day of January, in Troy, Idaho, sunrise is at 7:12 am and sunset at 4:48 pm PST.
Sunshine
The months with the least sunshine are January, February and December, with an average of 4.5h of sunshine.UV index
In January, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: In January, the average maximum UV index of 2 translates into the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Troy in January?
What is the most humid month in Troy?
What is the average humidity in January in Troy?
How many days does it rain in January in Troy?
When does it snow the most in Troy?
How much does it snow in Troy in January?
What is the average length of the day in January in Troy?
What time are sunrise and sunset in January in Troy?
What is the month with the least sunshine in Troy?
How many hours of sunshine does Troy have in January?
What is the UV index intensity in January in Troy?
Average temperature in January
Troy, ID
- Average high temperature in January: 35.4°F
The warmest month (with the highest average high temperature) is August (83.7°F).
The month with the lowest average high temperature is December (34°F).
- Average low temperature in January: 25.5°F
The month with the highest average low temperature is August (58.1°F).
The coldest month (with the lowest average low temperature) is December (24.1°F).
Average pressure in January
Troy, ID
- Average pressure in January: 30.2"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in January
Troy, ID
- Average wind speed in January: 5.8mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are July, August and September (4.8mph).
Average humidity in January
Troy, ID
- Average humidity in January: 87%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (40%).
Average rainfall in January
Troy, ID
- Average rainfall in January: 2.52"
The wettest month (with the highest rainfall) is December (2.68").
The driest months (with the least rainfall) are July and August (0.47").
Average rainfall days in January
Troy, ID
- Average rainfall days in January: 10.9 days
The month with the highest number of rainy days is April (18.1 days).
The months with the least rainy days are July and August (5.9 days).
Average snowfall in January
Troy, ID
- Average snowfall in January: 12.56"
The month with the highest snowfall is January (12.56").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Troy, ID
- Average snowfall days in January: 13.7 days
The month with the highest number of snowfall days is December (14.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Troy, ID
- Average daylight in January: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in January: 4h and 3min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 4h and 30min).
Average sunshine days in January
Troy, ID
- Average sunshine days in January: 11.8 days
The month with the most sunshine days is July (23.3 days).
The month with the least sunshine days is February (9.2 days).
Average UV index in January
Troy, ID
- Average UV index in January: 2
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in January
Troy, ID
- Average cloud cover in January: 53
The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in January
Troy, ID
- Average visibility in January: 4mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).
Troy, Idaho, USA
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