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 Sugar Grove, the beginning of December is marked by a lowered average high-temperature, shifting from November's frosty 45.5°F (7.5°C) to a wintry 34.2°F (1.2°C). December in Sugar Grove witnesses an average low-temperature hovering around a subzero cold 23.7°F (-4.6°C).Humidity
In Sugar Grove, the average relative humidity in December is 82%.Rainfall
The month with the least rainfall is December, when the rain falls for 7.8 days and typically collects 1.57" (40mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Sugar Grove, in December, during 9.1 snowfall days, 2.64" (67mm) of snow is typically accumulated. In Sugar Grove, during the entire year, snow falls for 44.6 days and aggregates up to 15.2" (386mm) of snow.Daylight
December has the shortest days of the year in Sugar Grove, with an average of 9h and 12min of daylight.On the first day of December in Sugar Grove, sunrise is at 7:02 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:33 pm CST.
Sunshine
In December, the average sunshine is 4.1h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: The average daily UV index of 1 in December transforms into the following instructions:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is December in Sugar Grove?
What is the average humidity in December in Sugar Grove?
What is the driest month in Sugar Grove?
How much does it rain in Sugar Grove in December?
How much does it snow in Sugar Grove in December?
What is the month with the shortest days in Sugar Grove?
How many hours of daylight does Sugar Grove have in December?
What time are sunrise and sunset in December in Sugar Grove?
How many hours of sunshine does Sugar Grove have in December?
What is the month with the lowest UV index in Sugar Grove?
What is the UV index intensity in December in Sugar Grove?
Average temperature in December
Sugar Grove, IL
- Average high temperature in December: 34.2°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in December: 23.7°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure in December
Sugar Grove, IL
- Average pressure in December: 30.1"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
Sugar Grove, IL
- Average wind speed in December: 9.1mph
The windiest months (with the highest average wind speed) are January, February and April (9.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Sugar Grove, IL
- Average humidity in December: 82%
The months with the highest relative humidity are January, July and August (84%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Sugar Grove, IL
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is December (1.57").
Average rainfall days in December
Sugar Grove, IL
- Average rainfall days in December: 7.8 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is February (6 days).
Average snowfall in December
Sugar Grove, IL
- Average snowfall in December: 2.64"
The month with the highest snowfall is January (4.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Sugar Grove, IL
- Average snowfall days in December: 9.1 days
The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sugar 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 1min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Sugar Grove, IL
- Average sunshine days in December: 15.7 days
The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is April (10.3 days).
Average UV index in December
Sugar Grove, IL
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Sugar Grove, IL
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 34).
Average visibility in December
Sugar Grove, IL
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Sugar Grove, Illinois, USA
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