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
The transition into December is accompanied by a temperature decrease, with the average high-temperature shifting from a fresh 53.8°F (12.1°C) in November to a chilly 44.1°F (6.7°C). During the nights in December, Raum experiences a consistent average temperature of 32.4°F (0.2°C).Humidity
The average relative humidity in December is 78%.Rainfall
In Raum, during December, the rain falls for 10.3 days and regularly aggregates up to 2.8" (71mm) of precipitation. In Raum, during the entire year, the rain falls for 158.7 days and collects up to 36.1" (917mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In December, it is snowing for 3.5 days. Throughout December, 1.18" (30mm) of snow is accumulated. Throughout the year, there are 17.5 snowfall days, and 6.5" (165mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 6:50 am and sunset at 4:36 pm. On the last day of December, sunrise is at 7:08 am and sunset at 4:46 pm CST.
Sunshine
December has the least sunshine of the year, with an average of 4.5h of sunshine.UV index
The months with the lowest UV index in Raum are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.Note: In December, an average UV index of 2 transforms into the following instructions:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December in Raum?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Raum, IL
- Average high temperature in December: 44.1°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in December: 32.4°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in December
Raum, IL
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Raum, IL
- Average wind speed in December: 8.8mph
The windiest months (with the highest average wind speed) are January and February (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in December
Raum, IL
- Average humidity in December: 78%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Raum, IL
- Average rainfall in December: 2.8"
The wettest month (with the highest rainfall) is April (4.8").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in December
Raum, IL
- Average rainfall days in December: 10.3 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is November (9.7 days).
Average snowfall in December
Raum, IL
- Average snowfall in December: 1.18"
The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Raum, IL
- Average snowfall days in December: 3.5 days
The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Raum, IL
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 4h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 30min).
Average sunshine days in December
Raum, IL
- Average sunshine days in December: 17 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (9.9 days).
Average UV index in December
Raum, IL
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in December
Raum, IL
- Average cloud cover in December: 50
The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in December
Raum, IL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Raum, Illinois, USA
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