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 arrival of December signals a shift in temperature, down from a chilly 45.5°F (7.5°C) in November to an icy 34.5°F (1.4°C). In December, the average low-temperature is a subzero cold 24.8°F (-4°C).Humidity
In December, the average relative humidity in Buffalo Grove, Illinois, is 80%.Rainfall
December is the month with the least rainfall. Rain falls for 8.4 days and accumulates 1.34" (34mm) of precipitation.Snowfall
Months with snowfall in Buffalo Grove are January through May, October through December. In Buffalo Grove, in December, snow falls for 9.3 days, with typically accumulated 2.48" (63mm) of snow. In Buffalo Grove, during the entire year, snow falls for 45.4 days and aggregates up to 16.85" (428mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Buffalo Grove.On the first day of December, sunrise is at 7:01 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:30 pm CST.
Sunshine
In Buffalo Grove, the average sunshine in December is 4h.UV index
The month with the lowest UV index in Buffalo Grove, Illinois, is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index, 1 during December, leads to the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. To avoid the Sun's strongest rays, limit exposure around the mid-day period. To cut down UV radiation exposure by about half, sport a wide-brim hat. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is December in Buffalo Grove?
What is the average humidity in December in Buffalo Grove?
What is the driest month in Buffalo Grove?
How much does it rain in Buffalo Grove in December?
How much does it snow in Buffalo Grove in December?
What is the month with the shortest days in Buffalo Grove?
How many hours of daylight does Buffalo Grove have in December?
When are sunrise and sunset in December in Buffalo Grove?
How many hours of sunshine does Buffalo Grove have in December?
When is the lowest UV index in Buffalo Grove?
How high is the UV index in December in Buffalo Grove?
Average temperature in December
Buffalo Grove, IL
- Average high temperature in December: 34.5°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in December: 24.8°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).
Average pressure in December
Buffalo Grove, 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
Buffalo Grove, IL
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in December
Buffalo Grove, IL
- Average humidity in December: 80%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Buffalo Grove, IL
- Average rainfall in December: 1.34"
The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is December (1.34").
Average rainfall days in December
Buffalo Grove, IL
- Average rainfall days in December: 8.4 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in December
Buffalo Grove, IL
- Average snowfall in December: 2.48"
The month with the highest snowfall is January (4.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Buffalo Grove, IL
- Average snowfall days in December: 9.3 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Buffalo Grove, 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 0min
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
Buffalo Grove, IL
- Average sunshine days in December: 15.6 days
The month with the most sunshine days is November (15.7 days).
The month with the least sunshine days is April (10.3 days).
Average UV index in December
Buffalo Grove, IL
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Buffalo Grove, IL
- Average cloud cover in December: 59
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
Buffalo Grove, 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).
Buffalo Grove, Illinois, USA
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