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
Troy signifies an average high-temperature of a still freezing cold 28.8°F (-1.8°C) in January, closely mirroring the 27.1°F (-2.7°C) of December. Troy's nights in January experience an average temperature drop to a still freezing cold 15.3°F (-9.3°C).Humidity
January is the most humid month, with an average relative humidity of 94%.Rainfall
In January, the rain falls for 9.4 days. Throughout January, 2.05" (52mm) of precipitation is accumulated. In Troy, during the entire year, the rain falls for 138.8 days and collects up to 18.15" (461mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. January is the month with the most snowfall. Snow falls for 18.1 days and accumulates 11.34" (288mm) of snow.Daylight
In Troy, the average length of the day in January is 8h and 52min.On the first day of January, sunrise is at 8:35 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 8:13 am and sunset at 5:40 pm MST.
Sunshine
With an average of 3h of sunshine, January has the least sunshine of the year.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: A maximum daily UV index of 1 during January morphs into the following directions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the 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 Troy?
What is the snowiest month?
How many days does it snow in January?
How many hours of daylight does Troy have in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Troy have in January?
What are the months with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Troy, MT
- Average high temperature in January: 28.8°F
The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (27.1°F).
- Average low temperature in January: 15.3°F
The month with the highest average low temperature is August (47.3°F).
The coldest month (with the lowest average low temperature) is December (15.1°F).
Average pressure in January
Troy, MT
- Average pressure in January: 30.18"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Troy, MT
- Average wind speed in January: 3.6mph
The windiest months (with the highest average wind speed) are April and June (4.5mph).
The calmest month (with the lowest average wind speed) is December (3.5mph).
Average humidity in January
Troy, MT
- Average humidity in January: 94%
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (53%).
Average rainfall in January
Troy, MT
- Average rainfall in January: 2.05"
The wettest month (with the highest rainfall) is December (2.24").
The driest month (with the least rainfall) is August (0.43").
Average rainfall days in January
Troy, MT
- Average rainfall days in January: 9.4 days
The month with the highest number of rainy days is April (17.5 days).
The month with the least rainy days is August (5.9 days).
Average snowfall in January
Troy, MT
- Average snowfall in January: 11.34"
The month with the highest snowfall is January (11.34").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Troy, MT
- Average snowfall days in January: 18.1 days
The month with the highest number of snowfall days is December (20 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Troy, MT
- Average daylight in January: 8h and 5min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in January: 3h and 0min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in January
Troy, MT
- Average sunshine days in January: 10.8 days
The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is February (7.4 days).
Average UV index in January
Troy, MT
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in January
Troy, MT
- Average cloud cover in January: 70
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in January
Troy, MT
- Average visibility in January: 2mi
The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).
Troy, Montana, USA
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