December weather forecast
Dolton, IL

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Weather in December

December, the first month of the winter in Dolton, is still a cold month, with an average temperature varying between 26.8°F (-2.9°C) and 35.8°F (2.1°C).

Temperature

Dolton's December weather shows a moderate shift in high-temperatures, falling from November's frosty 46.8°F (8.2°C) to a cold 35.8°F (2.1°C). December introduces a small decrease to a nighttime average of 26.8°F (-2.9°C).

Humidity

In Dolton, the average relative humidity in December is 80%.

Rainfall

February and December are months with the least rain when the rain falls for 4.2 days and typically aggregates up to 0.47" (12mm) of rain.

Snowfall

Months with snowfall are January through April, October through December. In Dolton, in December, snow falls for 7.5 days, with typically accumulated 0.51" (13mm) of snow. In Dolton, during the entire year, snow falls for 34.1 days and aggregates up to 4.13" (105mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 12min of daylight.
On the first day of the month, sunrise is at 6:58 am and sunset at 4:20 pm. On the last day of December, sunrise is at 7:17 am and sunset at 4:30 pm CST.

Sunshine

In December, the average sunshine is 4h.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.
Note: A typical high UV index of 1 in December suggests the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

During December, Dolton experiences an average high-temperature of 35.8°F (2.1°C) and a low-temperature of 26.8°F (-2.9°C).

What is the average humidity in December?

In December, the average relative humidity is 80%.

What is the driest month?

The months with the least rainfall are February and December Rain falls for 4.2 days and accumulates 0.47" (12mm) of rain.

How much does it rain in December?

In Dolton, in December, during 4.2 rainfall days, 0.47" (12mm) of precipitation is typically accumulated.

How much does it snow in December?

In December, it is snowing for 7.5 days. Throughout December, 0.51" (13mm) of snow is accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 12min of daylight.

What is the average length of the day in December?

In Dolton, the average day length in December is 9h and 13min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 6:58 am and sunset at 4:20 pm. On the last day of the month, in Dolton, Illinois, sunrise is at 7:17 am and sunset at 4:30 pm CST.

How long on average sun shines in December?

In December, the average sunshine duration in Dolton is 4h.

When is the lowest UV index?

The month with the lowest UV index is December, with an average maximum UV index of 1.

What is the UV index reading in December?

In Dolton, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a low health threat 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
Dolton, IL

Average temperature in December - Dolton, IL
  • Average high temperature in December: 35.8°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in December: 26.8°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).

Average pressure in December
Dolton, IL

Average pressure in December - Dolton, 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
Dolton, IL

Average wind speed in December - Dolton, IL
  • Average wind speed in December: 10.3mph

The windiest month (with the highest average wind speed) is January (11mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

Average humidity in December
Dolton, IL

Average humidity in December - Dolton, 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
Dolton, IL

Average rainfall in December - Dolton, IL
  • Average rainfall in December: 0.47"

The wettest months (with the highest rainfall) are May and June (1.38").
The driest months (with the least rainfall) are February and December (0.47").

Average rainfall days in December
Dolton, IL

Average rainfall days in December - Dolton, IL
  • Average rainfall days in December: 4.2 days

The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is February (4.1 days).

Average snowfall in December
Dolton, IL

Average snowfall in December - Dolton, IL
  • Average snowfall in December: 0.51"

The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Dolton, IL

Average snowfall days in December - Dolton, IL
  • Average snowfall days in December: 7.5 days

The month with the highest number of snowfall days is January (9.3 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
Dolton, IL

Average daylight in December / Average sunshine in December - Dolton, IL
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 6min).
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 24min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in December
Dolton, IL

Average sunshine days in December - Dolton, IL
  • Average sunshine days in December: 19.8 days

The month with the most sunshine days is December (19.8 days).
The month with the least sunshine days is June (13.1 days).

Average UV index in December
Dolton, IL

Average UV index in December - Dolton, 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
Dolton, IL

Average cloud cover in December - Dolton, IL
  • Average cloud cover in December: 59

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in December
Dolton, IL

Average visibility in December - Dolton, 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).

Dolton, Illinois, USA

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