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
Temperature readings reach their annual highs in January, averaging 22.3°F (-5.4°C) and a minimum average of 8.2°F (-13.2°C).Humidity
With an average relative humidity of 89%, January is the most humid month in Chester, South Dakota.Rainfall
January is the month with the least rainfall. Rain falls for 3.3 days and accumulates 0.63" (16mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Chester, during January, snow falls for 10.1 days and regularly aggregates up to 3.58" (91mm) of snow. Throughout the year, there are 45.6 snowfall days, and 19.49" (495mm) of snow is accumulated.Daylight
In Chester, the average length of the day in January is 9h and 21min.On the first day of January in Chester, sunrise is at 8:01 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 5:36 pm CST.
Sunshine
With an average of 4h of sunshine, January has the least sunshine of the year in Chester.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Chester. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 1 in January translates into these instructions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest in Chester?
How cold is it in Chester in January?
What is the most humid month in Chester?
What is the average humidity in January in Chester?
What is the driest month in Chester?
How many days does it rain in January in Chester?
How many days does it snow in January in Chester?
How many hours of daylight does Chester have in January?
What time are sunrise and sunset in January in Chester?
What is the month with the least sunshine in Chester?
How many hours of sunshine does Chester have in January?
When is the lowest UV index in Chester?
How high is the UV index in January in Chester?
Average temperature in January
Chester, SD
- Average high temperature in January: 22.3°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (22.3°F).
- Average low temperature in January: 8.2°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).
Average pressure in January
Chester, SD
- Average pressure in January: 30.16"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in January
Chester, SD
- Average wind speed in January: 10.6mph
The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest month (with the lowest average wind speed) is July (8.2mph).
Average humidity in January
Chester, SD
- Average humidity in January: 89%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (67%).
Average rainfall in January
Chester, SD
- Average rainfall in January: 0.63"
The wettest month (with the highest rainfall) is June (3.27").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in January
Chester, SD
- Average rainfall days in January: 3.3 days
The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in January
Chester, SD
- Average snowfall in January: 3.58"
The month with the highest snowfall is February (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Chester, SD
- Average snowfall days in January: 10.1 days
The month with the highest number of snowfall days is December (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Chester, SD
- 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: 4h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in January
Chester, SD
- Average sunshine days in January: 19.6 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is June (10.6 days).
Average UV index in January
Chester, SD
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Chester, SD
- Average cloud cover in January: 57
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in January
Chester, SD
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Chester, South Dakota, USA
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