January weather forecastIronton, WI
January
Weather in January
January, the same as December, in Ironton, Wisconsin, is a freezing cold winter month, with an average temperature ranging between max 22.3°F (-5.4°C) and min 9.9°F (-12.3°C).Temperature
January is the month when Ironton sees the lowest average temperatures, with a high of 22.3°F (-5.4°C) and a low of 9.9°F (-12.3°C).Humidity
With an average relative humidity of 90%, January is the most humid month.Rainfall
The month with the least rainfall in Ironton is January, when the rain falls for 2.9 days and typically collects 0.79" (20mm) of precipitation.Snowfall
Months with snowfall in Ironton are January through April, October through December. In Ironton, during January, snow falls for 13 days and regularly aggregates up to 3.78" (96mm) of snow. In Ironton, during the entire year, snow falls for 54.1 days and aggregates up to 17.09" (434mm) of snow.Daylight
In January, the average length of the day in Ironton is 9h and 23min.On the first day of January, sunrise is at 7:33 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:09 pm CST.
Sunshine
With an average of 3h of sunshine, January has the least sunshine of the year in Ironton.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Ironton, Wisconsin. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index, 1 in January, converts into the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Opt for tightly woven and loose clothing to enhance protection from the Sun. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Ironton, WI
- Average high temperature in January: 22.3°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.3°F).
- Average low temperature in January: 9.9°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in January
Ironton, WI
- Average pressure in January: 30.12"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in January
Ironton, WI
- Average wind speed in January: 9.3mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in January
Ironton, WI
- Average humidity in January: 90%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is April (77%).
Average rainfall in January
Ironton, WI
- Average rainfall in January: 0.79"
The wettest month (with the highest rainfall) is June (2.83").
The driest month (with the least rainfall) is January (0.79").
Average rainfall days in January
Ironton, WI
- Average rainfall days in January: 2.9 days
The months with the highest number of rainy days are May and June (16.1 days).
The month with the least rainy days is February (2.5 days).
Average snowfall in January
Ironton, WI
- Average snowfall in January: 3.78"
The month with the highest snowfall is February (4.37").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Ironton, WI
- Average snowfall days in January: 13 days
The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Ironton, WI
- Average daylight in January: 9h and 24min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January: 3h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in January
Ironton, WI
- Average sunshine days in January: 15.8 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is June (11.5 days).
Average UV index in January
Ironton, 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, November and December (UV index 1).
Average cloud cover in January
Ironton, WI
- Average cloud cover in January: 69
The month with the most cloud cover is January (Cloud cover 69).
The months with the least cloud cover are July, August and September (Cloud cover 36).
Average visibility in January
Ironton, WI
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, July, August, September and December (5mi).





