January weather forecastHartland, WI
January
Weather in January
January, the same as December, in Hartland, Wisconsin, is another subzero cold winter month, with temperature in the range of an average high of 25.2°F (-3.8°C) and an average low of 13.6°F (-10.2°C).Temperature
Hartland experiences its lowest average temperatures in January, reaching a peak of 25.2°F (-3.8°C) and a minimum of 13.6°F (-10.2°C).Humidity
With an average relative humidity of 87%, January is the most humid month.Rainfall
In Hartland, Wisconsin, in January, it is raining for 5.4 days, with typically 1.54" (39mm) of accumulated precipitation. In Hartland, Wisconsin, during the entire year, the rain falls for 149.2 days and collects up to 28.54" (725mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. January is the month with the most snowfall in Hartland, Wisconsin. Snow falls for 15.4 days and accumulates 5.43" (138mm) of snow.Daylight
In January, the average length of the day is 9h and 26min.On the first day of January in Hartland, 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
The months with the lowest UV index in Hartland are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In January, the maximum UV index of 1 suggests these recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. 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
Average temperature in January
Hartland, 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
Hartland, 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
Hartland, 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
Hartland, 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
Hartland, 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
Hartland, 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
Hartland, 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
Hartland, 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
Hartland, 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
Hartland, 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
Hartland, 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
Hartland, 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
Hartland, 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).
