January weather forecastSussex, WI
January
Weather in January
January, like December, is another subzero cold winter month in Sussex, Wisconsin, with an average temperature fluctuating between 25.2°F (-3.8°C) and 13.6°F (-10.2°C).Temperature
Sussex, Wisconsin, witnesses the coldest weather in January, with temperatures averaging a high of 25.2°F (-3.8°C) and a low of 13.6°F (-10.2°C).Humidity
With an average relative humidity of 87%, January is the most humid month.Rainfall
In Sussex, in January, it is raining for 5.4 days, with typically 1.54" (39mm) of accumulated precipitation. Throughout the year, there are 149.2 rainfall days, and 28.54" (725mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. The month with the most snowfall in Sussex is January, when snow falls for 15.4 days and typically aggregates up to 5.43" (138mm) of snow.Daylight
In Sussex, the average length of the day in January is 9h and 26min.On the first day of January, sunrise is at 7:24 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:03 pm CST.
Sunshine
January has the least sunshine of the year, with an average of 3.5h of sunshine.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A daily high UV index of 1 in January leads to these guidelines:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Sussex, WI
- Average high temperature in January: 25.2°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in January: 13.6°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 (13.6°F).
Average pressure in January
Sussex, WI
- Average pressure in January: 30.1"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Sussex, WI
- Average wind speed in January: 10.5mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).
Average humidity in January
Sussex, WI
- Average humidity in January: 87%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in January
Sussex, WI
- Average rainfall in January: 1.54"
The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is February (1.46").
Average rainfall days in January
Sussex, WI
- Average rainfall days in January: 5.4 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in January
Sussex, WI
- Average snowfall in January: 5.43"
The month with the highest snowfall is January (5.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Sussex, WI
- Average snowfall days in January: 15.4 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Sussex, WI
- Average daylight in January: 9h and 24min
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 6min).
- Average sunshine in January: 3h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in January
Sussex, WI
- Average sunshine days in January: 12.1 days
The month with the most sunshine days is November (15.9 days).
The months with the least sunshine days are June and July (10.3 days).
Average UV index in January
Sussex, WI
- Average UV index in January: 1
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Sussex, 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 August and September (Cloud cover 30).
Average visibility in January
Sussex, WI
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
