December weather forecastIronton, WI
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Ironton, Wisconsin, with an average temperature ranging between min 18.3°F (-7.6°C) and max 28.8°F (-1.8°C).Temperature
The arrival of December corresponds with a reduction in the average high-temperature, down from November's icy 41.7°F (5.4°C) to a freezing cold 28.8°F (-1.8°C). The average low-temperature during December nights is a still subzero cold 18.3°F (-7.6°C).Humidity
The average relative humidity in December is 86%.Rainfall
In Ironton, in December, it is raining for 4.2 days, with typically 0.94" (24mm) of accumulated precipitation. In Ironton, during the entire year, the rain falls for 117.9 days and collects up to 21.02" (534mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Ironton, in December, during 10.9 snowfall days, 2.95" (75mm) of snow is typically accumulated. In Ironton, during the entire year, snow falls for 54.1 days and aggregates up to 17.09" (434mm) of snow.Daylight
The month with the shortest days in Ironton is December, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 7:14 am and sunset at 4:25 pm. On the last day of December, sunrise is at 7:33 am and sunset at 4:34 pm CST.
Sunshine
The average sunshine in December in Ironton is 3.5h.UV index
The months with the lowest UV index in Ironton are January, February, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 1 during December translates into the following recommendations:
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. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. 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 December
Ironton, WI
- Average high temperature in December: 28.8°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 December: 18.3°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 December
Ironton, WI
- Average pressure in December: 30.09"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 December
Ironton, WI
- Average wind speed in December: 9.1mph
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 December
Ironton, WI
- Average humidity in December: 86%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Ironton, WI
- Average rainfall in December: 0.94"
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 December
Ironton, WI
- Average rainfall days in December: 4.2 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 December
Ironton, WI
- Average snowfall in December: 2.95"
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 December
Ironton, WI
- Average snowfall days in December: 10.9 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 December /
Average sunshine in December
Ironton, WI
- Average daylight in December: 9h and 0min
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 December: 3h and 30min
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 December
Ironton, WI
- Average sunshine days in December: 17.7 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 December
Ironton, WI
- Average UV index in December: 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 December
Ironton, WI
- Average cloud cover in December: 65
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 December
Ironton, WI
- Average visibility in December: 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).
