January weather forecastMerrill, WI
January
Weather in January
January, like December, is a freezing cold winter month in Merrill, Wisconsin, with temperature in the range of an average low of 7.9°F (-13.4°C) and an average high of 19.2°F (-7.1°C).Temperature
January is Merrill's coldest month, registering average high temperatures of 19.2°F (-7.1°C) and lows of 7.9°F (-13.4°C).Humidity
January and February, with an average relative humidity of 92%, are the most humid months.Rainfall
The months with the least rainfall are January and February Rain falls for 3.9 days and accumulates 0.79" (20mm) of rain.Snowfall
Months with snowfall in Merrill are January through May, October through December. The month with the most snowfall is January, when snow falls for 20.3 days and typically aggregates up to 4.76" (121mm) of snow.Daylight
The average length of the day in January is 9h and 13min.On the first day of the month, sunrise is at 7:37 am and sunset at 4:26 pm. On the last day of January, sunrise is at 7:20 am and sunset at 5:04 pm CST.
Sunshine
With an average of 2.6h of sunshine, January has the least sunshine of the year in Merrill.UV index
January, February 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 hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index, 1 during January, leads to the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Merrill, WI
- Average high temperature in January: 19.2°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (19.2°F).
- Average low temperature in January: 7.9°F
The month with the highest average low temperature is July (57.9°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).
Average pressure in January
Merrill, WI
- Average pressure in January: 30.09"Hg
The month with the highest atmospheric pressure is February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Merrill, WI
- Average wind speed in January: 8.6mph
The windiest month (with the highest average wind speed) is April (9mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in January
Merrill, WI
- Average humidity in January: 92%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (75%).
Average rainfall in January
Merrill, WI
- Average rainfall in January: 0.79"
The wettest month (with the highest rainfall) is May (2.28").
The driest months (with the least rainfall) are January and February (0.79").
Average rainfall days in January
Merrill, WI
- Average rainfall days in January: 3.9 days
The months with the highest number of rainy days are May and June (15.8 days).
The month with the least rainy days is January (3.9 days).
Average snowfall in January
Merrill, WI
- Average snowfall in January: 4.76"
The month with the highest snowfall is January (4.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Merrill, WI
- Average snowfall days in January: 20.3 days
The month with the highest number of snowfall days is January (20.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Merrill, 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 36min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in January
Merrill, WI
- Average sunshine days in January: 11.8 days
The month with the most sunshine days is September (15.7 days).
The month with the least sunshine days is April (10.3 days).
Average UV index in January
Merrill, 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, February and December (UV index 1).
Average cloud cover in January
Merrill, WI
- Average cloud cover in January: 75
The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in January
Merrill, WI
- Average visibility in January: 4mi
The months with the highest visibility are April, May, June and October (6mi).
The months with the lowest visibility are January and February (4mi).
