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 is the coldest month of the year, registering average temperatures as high as 24.8°F (-4°C) and as low as 14°F (-10°C).Humidity
With an average relative humidity of 88%, January is the most humid month.Rainfall
In Jackson, during January, the rain falls for 4.5 days and regularly aggregates up to 1.34" (34mm) of precipitation. Throughout the year, there are 139.5 rainfall days, and 26.77" (680mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. January is the month with the most snowfall. Snow falls for 11.7 days and accumulates 4.17" (106mm) of snow.Daylight
In Jackson, the average length of the day in January is 9h and 25min.On the first day of January, sunrise is at 7:24 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:02 pm CST.
Sunshine
January has the least sunshine of the year, with an average of 3.5h of sunshine.UV index
The months with the lowest UV index are January, 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 exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 1 during January translates into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. 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?
How cold is it in January?
What is the most humid month?
What is the average humidity in January?
How much does it rain in Jackson in January?
When does it snow the most?
How much does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January?
What are the months with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Jackson, WI
- Average high temperature in January: 24.8°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in January: 14°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (14°F).
Average pressure in January
Jackson, WI
- Average pressure in January: 30.09"Hg
The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Jackson, WI
- Average wind speed in January: 11mph
The windiest month (with the highest average wind speed) is January (11mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in January
Jackson, WI
- Average humidity in January: 88%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in January
Jackson, WI
- Average rainfall in January: 1.34"
The wettest months (with the highest rainfall) are May and June (3.19").
The driest month (with the least rainfall) is February (1.1").
Average rainfall days in January
Jackson, WI
- Average rainfall days in January: 4.5 days
The month with the highest number of rainy days is June (16.4 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in January
Jackson, WI
- Average snowfall in January: 4.17"
The month with the highest snowfall is January (4.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Jackson, WI
- Average snowfall days in January: 11.7 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Jackson, WI
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January: 3h and 3min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in January
Jackson, WI
- Average sunshine days in January: 15 days
The month with the most sunshine days is December (17.3 days).
The month with the least sunshine days is April (11.4 days).
Average UV index in January
Jackson, WI
- Average UV index in January: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in January
Jackson, WI
- Average cloud cover in January: 63
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July, August and September (Cloud cover 29).
Average visibility in January
Jackson, WI
- 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).
Jackson, Wisconsin, USA
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