December weather forecast
Hinsdale, IL

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Weather in December

The first month of the winter, December, is also an icy month in Hinsdale, Illinois, with temperature in the range of an average low of 25°F (-3.9°C) and an average high of 34.5°F (1.4°C).

Temperature

With December's onset, the weather shows a temperature decrease, transitioning from a chilly 45.7°F (7.6°C) in November to a wintry 34.5°F (1.4°C). Throughout December, the average low-temperature in Hinsdale records at a subzero cold 25°F (-3.9°C).

Humidity

The average relative humidity in December is 81%.

Rainfall

The month with the least rainfall in Hinsdale, Illinois, is December, when the rain falls for 4.9 days and typically collects 0.63" (16mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Hinsdale, in December, during 7.2 snowfall days, 0.75" (19mm) of snow is typically accumulated. Throughout the year, there are 34.9 snowfall days, and 7.2" (183mm) of snow is accumulated.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year in Hinsdale.
On the first day of December in Hinsdale, sunrise is at 7:00 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:31 pm CST.

Sunshine

In Hinsdale, Illinois, the average sunshine in December is 4.1h.

UV index

In December, the average daily maximum UV index in Hinsdale, Illinois, is 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 2 in December interprets into the following advice:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Hinsdale?

During December, Hinsdale experiences an average high-temperature of 34.5°F (1.4°C) and a low-temperature of 25°F (-3.9°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in August is calculated to be 86°F (30°C).

What is the average humidity in December in Hinsdale?

The average relative humidity in December in Hinsdale, Illinois, is 81%.

What is the driest month in Hinsdale?

The month with the least rainfall in Hinsdale is December, when the rain falls for 4.9 days and typically collects 0.63" (16mm) of precipitation.

How much does it rain in Hinsdale in December?

In December, the rain falls for 4.9 days. Throughout December, 0.63" (16mm) of precipitation is accumulated.

How many days does it snow in December in Hinsdale?

In Hinsdale, in December, during 7.2 snowfall days, 0.75" (19mm) of snow is typically accumulated.

What is the month with the shortest days in Hinsdale?

The month with the shortest days in Hinsdale is December, with an average of 9h and 12min of daylight.

What is the average length of the day in December in Hinsdale?

The average day length in December in Hinsdale is 9h and 12min.

What time are sunrise and sunset in December in Hinsdale?

In December, on the first day of the month, sunrise is at 7:00 am and sunset at 4:21 pm. On the last day of the month, in Hinsdale, sunrise is at 7:19 am and sunset at 4:31 pm CST.

How many hours of sunshine does Hinsdale have in December?

In Hinsdale, Illinois, the average sunshine duration in December is 4.1h.

What is the UV index reading in December in Hinsdale?

In December, the average daily maximum UV index in Hinsdale is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Hinsdale, IL

Average temperature in December - Hinsdale, IL
  • Average high temperature in December: 34.5°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in December: 25°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

Average pressure in December
Hinsdale, IL

Average pressure in December - Hinsdale, 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
Hinsdale, IL

Average wind speed in December - Hinsdale, IL
  • Average wind speed in December: 9mph

The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

Average humidity in December
Hinsdale, IL

Average humidity in December - Hinsdale, IL
  • Average humidity in December: 81%

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
Hinsdale, IL

Average rainfall in December - Hinsdale, IL
  • Average rainfall in December: 0.63"

The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is December (0.63").

Average rainfall days in December
Hinsdale, IL

Average rainfall days in December - Hinsdale, IL
  • Average rainfall days in December: 4.9 days

The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is February (4.2 days).

Average snowfall in December
Hinsdale, IL

Average snowfall in December - Hinsdale, IL
  • Average snowfall in December: 0.75"

The month with the highest snowfall is February (2.28").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Hinsdale, IL

Average snowfall days in December - Hinsdale, IL
  • Average snowfall days in December: 7.2 days

The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Hinsdale, IL

Average daylight in December / Average sunshine in December - Hinsdale, 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 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in December
Hinsdale, IL

Average sunshine days in December - Hinsdale, IL
  • Average sunshine days in December: 20.7 days

The month with the most sunshine days is December (20.7 days).
The month with the least sunshine days is July (11.8 days).

Average UV index in December
Hinsdale, IL

Average UV index in December - Hinsdale, IL
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in December
Hinsdale, IL

Average cloud cover in December - Hinsdale, 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 31).

Average visibility in December
Hinsdale, IL

Average visibility in December - Hinsdale, 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).

Hinsdale, Illinois, USA

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