December weather forecast
Robbins, IL

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Weather in December

December, the first month of the winter in Robbins, is still a cold month, with an average temperature ranging between max 35.2°F (1.8°C) and min 26.4°F (-3.1°C).

Temperature

In December, the average high-temperature goes from a chilly 46.2°F (7.9°C) in November to an icy 35.2°F (1.8°C). Robbins, during December nights, witnesses an average temperature marginally cooler than its daytime highs, at a subzero cold 26.4°F (-3.1°C).

Humidity

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

Rainfall

The month with the least rainfall in Robbins is December, when the rain falls for 7.4 days and typically collects 1.02" (26mm) of precipitation.

Snowfall

Months with snowfall in Robbins, Illinois, are January through April, October through December. In Robbins, in December, snow falls for 9.4 days, with typically accumulated 1.5" (38mm) of snow. Throughout the year, in Robbins, there are 42.4 snowfall days, and 11.61" (295mm) of snow is accumulated.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year in Robbins.
On the first day of December, sunrise is at 6:58 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:30 pm CST.

Sunshine

In Robbins, the average sunshine in December is 4.2h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index in Robbins. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In December, the maximum UV index of 1 translates into these guidelines:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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Frequently asked questions

How cold is it in Robbins in December?

The average high-temperature and low-temperature during December are 35.2°F (1.8°C) and 26.4°F (-3.1°C) respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in July is calculated to be 86°F (30°C).

What is the average humidity in December in Robbins?

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

What is the driest month in Robbins?

December is the month with the least rainfall. Rain falls for 7.4 days and accumulates 1.02" (26mm) of precipitation.

How much does it rain in Robbins in December?

In December, in Robbins, the rain falls for 7.4 days. Throughout December, 1.02" (26mm) of precipitation is accumulated.

How many days does it snow in December in Robbins?

In Robbins, during December, snow falls for 9.4 days and regularly aggregates up to 1.5" (38mm) of snow.

What is the month with the shortest days in Robbins?

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

How many hours of daylight does Robbins have in December?

The average day length in December in Robbins, Illinois, is 9h and 13min.

What time are sunrise and sunset in December in Robbins?

On the first day of December in Robbins, sunrise is at 6:58 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:30 pm CST.

How long on average sun shines in December in Robbins?

In Robbins, Illinois, the average sunshine duration in December is 4.2h.

What is the month with the lowest UV index in Robbins?

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 Robbins?

In December, the average daily maximum UV index in Robbins is 1. A UV Index estimate of 2, and below, represents a minimal hazard to health 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
Robbins, IL

Average temperature in December - Robbins, IL
  • Average high temperature in December: 35.2°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.5°F).

  • Average low temperature in December: 26.4°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

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Average pressure in December
Robbins, IL

Average pressure in December - Robbins, 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).

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Average wind speed in December
Robbins, IL

Average wind speed in December - Robbins, IL
  • Average wind speed in December: 9.9mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

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Average humidity in December
Robbins, IL

Average humidity in December - Robbins, 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%).

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Average rainfall in December
Robbins, IL

Average rainfall in December - Robbins, IL
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (1.02").

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Average rainfall days in December
Robbins, IL

Average rainfall days in December - Robbins, IL
  • Average rainfall days in December: 7.4 days

The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (4.9 days).

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Average snowfall in December
Robbins, IL

Average snowfall in December - Robbins, IL
  • Average snowfall in December: 1.5"

The month with the highest snowfall is February (3.07").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Robbins, IL

Average snowfall days in December - Robbins, IL
  • Average snowfall days in December: 9.4 days

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Robbins, 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 1min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in December
Robbins, IL

Average sunshine days in December - Robbins, IL
  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (9.8 days).

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Average UV index in December
Robbins, IL

Average UV index in December - Robbins, 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).

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Average cloud cover in December
Robbins, IL

Average cloud cover in December - Robbins, IL
  • Average cloud cover in December: 57

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in December
Robbins, IL

Average visibility in December - Robbins, 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).

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Robbins, Illinois, USA

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