Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
As December arrives, Iron River's weather displays a decrease in high-temperatures, transitioning from November's wintry 37.6°F (3.1°C) to a subzero cold 25.3°F (-3.7°C). Throughout the December nights, Iron River encounters a low-temperature of 16°F (-8.9°C).Humidity
In December, the average relative humidity is 88%.Rainfall
In Iron River, in December, it is raining for 4.3 days, with typically 1.54" (39mm) of accumulated precipitation. Throughout the year, there are 121.6 rainfall days, and 21.42" (544mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 20.2 days and typically aggregates up to 7.95" (202mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 36min of daylight.On the first day of the month, sunrise is at 7:29 am and sunset at 4:20 pm. On the last day of December, sunrise is at 7:49 am and sunset at 4:28 pm CST.
Sunshine
The average sunshine in December is 2.5h.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: A maximum high daily UV index of 1 during December translates into the following directions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How much does it rain in December?
What is the snowiest month?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Iron River have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Iron River have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Iron River, WI
- Average high temperature in December: 25.3°F
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (19.4°F).
- Average low temperature in December: 16°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (8.6°F).
Average pressure in December
Iron River, WI
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Iron River, WI
- Average wind speed in December: 8.9mph
The windiest month (with the highest average wind speed) is November (9.1mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in December
Iron River, WI
- Average humidity in December: 88%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is May (72%).
Average rainfall in December
Iron River, WI
- Average rainfall in December: 1.54"
The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in December
Iron River, WI
- Average rainfall days in December: 4.3 days
The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is January (3.2 days).
Average snowfall in December
Iron River, WI
- Average snowfall in December: 7.95"
The month with the highest snowfall is December (7.95").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Iron River, WI
- Average snowfall days in December: 20.2 days
The month with the highest number of snowfall days is January (21.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Iron River, WI
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 2h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in December
Iron River, WI
- Average sunshine days in December: 9.8 days
The month with the most sunshine days is September (15 days).
The month with the least sunshine days is December (9.8 days).
Average UV index in December
Iron River, WI
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Iron River, WI
- Average cloud cover in December: 75
The month with the most cloud cover is January (Cloud cover 78).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Iron River, WI
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Iron River, Wisconsin, USA
Weather forecast for your location
2. Allow the app to use your location