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
Chester notes an average high-temperature of a still subzero cold 28.8°F (-1.8°C) in January, hardly diverging from December. Chester, in January, observes a steady average low-temperature of 16.7°F (-8.5°C).Humidity
With an average relative humidity of 81%, January is the most humid month.Rainfall
In Chester, in January, it is raining for 5 days, with typically 0.63" (16mm) of accumulated precipitation. Throughout the year, in Chester, there are 113.8 rainfall days, and 11.89" (302mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In Chester, in January, snow falls for 12.5 days, with typically accumulated 4.25" (108mm) of snow. Throughout the year, there are 65.1 snowfall days, and 24.69" (627mm) of snow is accumulated.Daylight
In Chester, the average length of the day in January is 8h and 51min.On the first day of the month, sunrise is at 8:15 am and sunset at 4:39 pm. On the last day of January, in Chester, sunrise is at 7:54 am and sunset at 5:20 pm MST.
Sunshine
The months with the least sunshine are January and December, with an average of 5.3h of sunshine.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Chester. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: In January, the UV index of 2 transforms into the following advice:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is January in Chester?
What is the most humid month in Chester?
What is the average humidity in January in Chester?
How many days does it rain in January in Chester?
How many days does it snow in January in Chester?
What is the average length of the day in January in Chester?
When are sunrise and sunset in January in Chester?
What are the months with the least sunshine in Chester?
How many hours of sunshine does Chester have in January?
What is the month with the lowest UV index in Chester?
How high is the UV index in January in Chester?
Average temperature in January
Chester, MT
- Average high temperature in January: 28.8°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is December (28.2°F).
- Average low temperature in January: 16.7°F
The month with the highest average low temperature is August (60.4°F).
The coldest month (with the lowest average low temperature) is February (16.3°F).
Average pressure in January
Chester, MT
- Average pressure in January: 30.13"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in January
Chester, MT
- Average wind speed in January: 10.3mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity in January
Chester, MT
- Average humidity in January: 81%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (39%).
Average rainfall in January
Chester, MT
- Average rainfall in January: 0.63"
The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is December (0.59").
Average rainfall days in January
Chester, MT
- Average rainfall days in January: 5 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is January (5 days).
Average snowfall in January
Chester, MT
- Average snowfall in January: 4.25"
The month with the highest snowfall is February (5").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Chester, MT
- Average snowfall days in January: 12.5 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Chester, MT
- Average daylight in January: 8h and 5min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in January: 5h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 18min).
Average sunshine days in January
Chester, MT
- Average sunshine days in January: 17 days
The month with the most sunshine days is September (19.5 days).
The month with the least sunshine days is April (11.7 days).
Average UV index in January
Chester, MT
- Average UV index in January: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in January
Chester, MT
- Average cloud cover in January: 43
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility in January
Chester, MT
- 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).
Chester, Montana, USA
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