January weather forecastGreen Valley, WI
January
Weather in January
January, the same as December, in Green Valley, Wisconsin, is another subzero cold winter month, with temperature in the range of an average high of 22.6°F (-5.2°C) and an average low of 12.6°F (-10.8°C).Temperature
The month of January, characterized by an average high of 22.6°F (-5.2°C) and a low of 12.6°F (-10.8°C), is recognized as the coldest.Humidity
In January, the average relative humidity is 87%.Rainfall
January is the month with the least rainfall. Rain falls for 5.1 days and accumulates 1.14" (29mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In January, it is snowing for 16.3 days. Throughout January, 5.47" (139mm) of snow is accumulated. In Green Valley, during the entire year, snow falls for 69.2 days and aggregates up to 26.14" (664mm) of snow.Daylight
The average length of the day in January in Green Valley is 9h and 16min.On the first day of January, sunrise is at 7:30 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:59 pm CST.
Sunshine
In Green Valley, the average sunshine in January is 3.6h.UV index
The months with the lowest UV index are January and March, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 1 in January translates into this advice:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Enhance your sun protection with tightly woven, yet airy clothing. 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
Green Valley, WI
- Average high temperature in January: 22.6°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (22.6°F).
- Average low temperature in January: 12.6°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in January
Green Valley, WI
- Average pressure in January: 30.07"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Green Valley, WI
- Average wind speed in January: 9.1mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in January
Green Valley, WI
- Average humidity in January: 87%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (75%).
Average rainfall in January
Green Valley, WI
- Average rainfall in January: 1.14"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in January
Green Valley, WI
- Average rainfall days in January: 5.1 days
The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in January
Green Valley, WI
- Average snowfall in January: 5.47"
The month with the highest snowfall is February (6.93").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Green Valley, WI
- Average snowfall days in January: 16.3 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Green Valley, WI
- Average daylight in January: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January: 3h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).
Average sunshine days in January
Green Valley, WI
- Average sunshine days in January: 13.8 days
The month with the most sunshine days is September (16.9 days).
The month with the least sunshine days is April (11.6 days).
Average UV index in January
Green Valley, 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 and March (UV index 1).
Average cloud cover in January
Green Valley, WI
- Average cloud cover in January: 63
The months with the most cloud cover are January and February (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in January
Green Valley, 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).
