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
December's onset brings a slight change in high-temperatures, falling from a frosty 46.2°F (7.9°C) in November to an icy 35.2°F (1.8°C). An average low-temperature of 25.5°F (-3.6°C) marks the nights throughout December.Humidity
In Western Springs, the average relative humidity in December is 80%.Rainfall
November and December are months with the least rain when the rain falls for 8.5 days and typically aggregates up to 1.77" (45mm) of rain.Snowfall
Months with snowfall in Western Springs are January through April, October through December. In Western Springs, in December, during 9.6 snowfall days, 2.76" (70mm) of snow is typically accumulated. In Western Springs, during the entire year, snow falls for 47.1 days and aggregates up to 19.02" (483mm) of snow.Daylight
December has the shortest days of the year in Western Springs, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:00 am and sunset at 4:21 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:30 pm CST.
Sunshine
The average sunshine in December is 4.1h.UV index
December is the month with the lowest UV index in Western Springs, Illinois, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 1 in December translates into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Boost your sun resistance with garments that are densely woven yet spacious. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
How cold is December in Western Springs?
What is the average humidity in December in Western Springs?
What is the driest month in Western Springs?
How much does it rain in Western Springs in December?
How many days does it snow in December in Western Springs?
What is the month with the shortest days in Western Springs?
How many hours of daylight does Western Springs have in December?
When is the sunrise / sunset in December in Western Springs?
How long on average sun shines in December in Western Springs?
When is the lowest UV index in Western Springs?
What is the UV index reading in December in Western Springs?
Average temperature in December
Western Springs, IL
- Average high temperature in December: 35.2°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in December: 25.5°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in December
Western Springs, IL
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Western Springs, IL
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in December
Western Springs, IL
- Average humidity in December: 80%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Western Springs, IL
- Average rainfall in December: 1.77"
The wettest month (with the highest rainfall) is May (4.61").
The driest months (with the least rainfall) are November and December (1.77").
Average rainfall days in December
Western Springs, IL
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is June (19.4 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in December
Western Springs, IL
- Average snowfall in December: 2.76"
The month with the highest snowfall is February (5.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Western Springs, IL
- Average snowfall days in December: 9.6 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Western Springs, IL
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Western Springs, IL
- Average sunshine days in December: 14.3 days
The month with the most sunshine days is November (16.1 days).
The month with the least sunshine days is June (8.2 days).
Average UV index in December
Western Springs, IL
- Average UV index in December: 1
The months with the highest UV index are July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Western Springs, IL
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Western Springs, IL
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Western Springs, Illinois, USA
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