January weather forecastStar Prairie, WI
January
Weather in January
January, like December, is another subzero cold winter month in Star Prairie, Wisconsin, with temperature in the range of an average high of 18.9°F (-7.3°C) and an average low of 5.5°F (-14.7°C).Temperature
January, characterized by an average high temperature of 18.9°F (-7.3°C) and a low temperature of 5.5°F (-14.7°C), is generally the coldest month.Humidity
With an average relative humidity of 92%, January is the most humid month in Star Prairie.Rainfall
January is the month with the least rainfall. Rain falls for 2.3 days and accumulates 0.67" (17mm) of precipitation.Snowfall
Months with snowfall in Star Prairie are January through May, October through December. In January, in Star Prairie, it is snowing for 16.2 days. Throughout January, 3.43" (87mm) of snow is accumulated. Throughout the year, in Star Prairie, there are 69.6 snowfall days, and 22.05" (560mm) of snow is accumulated.Daylight
In Star Prairie, the average length of the day in January is 9h and 13min.On the first day of the month, sunrise is at 7:48 am and sunset at 4:38 pm. On the last day of January, in Star Prairie, sunrise is at 7:31 am and sunset at 5:15 pm CST.
Sunshine
The months with the least sunshine are January and February, with an average of 2.9h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In January, the maximum UV index of 1 transforms into these recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Star Prairie, WI
- Average high temperature in January: 18.9°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (18.9°F).
- Average low temperature in January: 5.5°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (5.5°F).
Average pressure in January
Star Prairie, WI
- Average pressure in January: 30.13"Hg
The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in January
Star Prairie, WI
- Average wind speed in January: 8.9mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in January
Star Prairie, WI
- Average humidity in January: 92%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is April (75%).
Average rainfall in January
Star Prairie, WI
- Average rainfall in January: 0.67"
The wettest month (with the highest rainfall) is June (3.66").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in January
Star Prairie, WI
- Average rainfall days in January: 2.3 days
The month with the highest number of rainy days is June (17.5 days).
The month with the least rainy days is January (2.3 days).
Average snowfall in January
Star Prairie, WI
- Average snowfall in January: 3.43"
The month with the highest snowfall is December (4.84").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Star Prairie, WI
- Average snowfall days in January: 16.2 days
The month with the highest number of snowfall days is January (16.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Star Prairie, WI
- Average daylight in January: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January: 2h and 54min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and February (Average sunshine: 2h and 54min).
Average sunshine days in January
Star Prairie, WI
- Average sunshine days in January: 14.8 days
The months with the most sunshine days are October and December (16.1 days).
The month with the least sunshine days is June (10 days).
Average UV index in January
Star Prairie, WI
- Average UV index in January: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in January
Star Prairie, WI
- Average cloud cover in January: 71
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in January
Star Prairie, WI
- Average visibility in January: 4mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).





