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
In West Brooklyn, entering December brings a temperature decrement, reducing from November's frosty 45.5°F (7.5°C) to a cold 34°F (1.1°C). Nighttime temperatures in December average to a subzero cold 23.5°F (-4.7°C) in West Brooklyn.Humidity
The average relative humidity in December in West Brooklyn, Illinois, is 83%.Rainfall
In December, in West Brooklyn, the rain falls for 5.9 days. Throughout December, 0.83" (21mm) of precipitation is accumulated. In West Brooklyn, during the entire year, the rain falls for 129.4 days and collects up to 16.65" (423mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In December, it is snowing for 8 days. Throughout December, 1.1" (28mm) of snow is accumulated. In West Brooklyn, during the entire year, snow falls for 36.1 days and aggregates up to 6.97" (177mm) of snow.Daylight
December has the shortest days of the year in West Brooklyn, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:04 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:36 pm CST.
Sunshine
The average sunshine in December in West Brooklyn is 4.1h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in West Brooklyn. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: The UV index of 1 during December leads to these advisories:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Boost your sun resistance with garments that are densely woven yet spacious. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Frequently asked questions
How cold is December in West Brooklyn?
What is the average humidity in December in West Brooklyn?
How many days does it rain in December in West Brooklyn?
How much does it snow in West Brooklyn in December?
What is the month with the shortest days in West Brooklyn?
What is the average length of the day in December in West Brooklyn?
What time are sunrise and sunset in December in West Brooklyn?
How long on average sun shines in December in West Brooklyn?
What is the month with the lowest UV index in West Brooklyn?
What is the UV index reading in December in West Brooklyn?
Average temperature in December
West Brooklyn, IL
- Average high temperature in December: 34°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (27.5°F).
- Average low temperature in December: 23.5°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in December
West Brooklyn, IL
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
West Brooklyn, IL
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in December
West Brooklyn, IL
- Average humidity in December: 83%
The months with the highest relative humidity are January and July (85%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
West Brooklyn, IL
- Average rainfall in December: 0.83"
The wettest month (with the highest rainfall) is May (2.68").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in December
West Brooklyn, IL
- Average rainfall days in December: 5.9 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in December
West Brooklyn, IL
- Average snowfall in December: 1.1"
The month with the highest snowfall is January (2.32").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
West Brooklyn, IL
- Average snowfall days in December: 8 days
The month with the highest number of snowfall days is January (10.4 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
West Brooklyn, 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 months with the most sunshine are June and July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
West Brooklyn, IL
- Average sunshine days in December: 18.8 days
The months with the most sunshine days are November and December (18.8 days).
The month with the least sunshine days is June (11.1 days).
Average UV index in December
West Brooklyn, IL
- 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 and December (UV index 1).
Average cloud cover in December
West Brooklyn, IL
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in December
West Brooklyn, IL
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
West Brooklyn, Illinois, USA
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