December weather forecast
Blandinsville, IL

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Weather in December

The first month of the winter, December, is also a wintry month in Blandinsville, Illinois, with an average temperature varying between 37°F (2.8°C) and 25.5°F (-3.6°C).

Temperature

December weather is marked by a drop in the average high-temperature, falling from a chilly 48.9°F (9.4°C) in November to a cold 37°F (2.8°C). The average low-temperature of 25.5°F (-3.6°C) is witnessed during December.

Humidity

The average relative humidity in December is 79%.

Rainfall

In Blandinsville, during December, the rain falls for 5.6 days and regularly aggregates up to 0.98" (25mm) of precipitation. In Blandinsville, Illinois, during the entire year, the rain falls for 127.6 days and collects up to 21.02" (534mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Blandinsville, in December, during 5.4 snowfall days, 1.3" (33mm) of snow is typically accumulated. Throughout the year, in Blandinsville, there are 26.4 snowfall days, and 9.06" (230mm) of snow is accumulated.

Daylight

The month with the shortest days in Blandinsville is December, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:08 am and sunset at 4:37 pm. On the last day of December, sunrise is at 7:26 am and sunset at 4:46 pm CST.

Sunshine

The average sunshine in December in Blandinsville is 4.5h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the maximum UV index of 2 translates into these guidelines:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Frequently asked questions

How cold is December in Blandinsville?

In December, in Blandinsville, the average high-temperature is 37°F (2.8°C), and the average low-temperature is 25.5°F (-3.6°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 89.6°F (32°C).

What is the average humidity in December in Blandinsville?

In December, the average relative humidity in Blandinsville, Illinois, is 79%.

How much does it rain in Blandinsville in December?

In Blandinsville, during December, the rain falls for 5.6 days and regularly aggregates up to 0.98" (25mm) of precipitation.

How many days does it snow in December in Blandinsville?

In December, in Blandinsville, Illinois, it is snowing for 5.4 days. Throughout December, 1.3" (33mm) of snow is accumulated.

What is the month with the shortest days in Blandinsville?

The month with the shortest days in Blandinsville, Illinois, is December, with an average of 9h and 18min of daylight.

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

In December, the average day length in Blandinsville, Illinois, is 9h and 20min.

What time are sunrise and sunset in December in Blandinsville?

On the first day of December in Blandinsville, Illinois, sunrise is at 7:08 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:46 pm CST.

How long on average sun shines in December in Blandinsville?

The average sunshine duration in December in Blandinsville, Illinois, is 4.5h.

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

The months with the lowest UV index in Blandinsville, Illinois, are January, February, November and December, with an average maximum UV index of 2.

How high is the UV index in December in Blandinsville?

In Blandinsville, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.
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
Blandinsville, IL

Average temperature in December - Blandinsville, IL
  • Average high temperature in December: 37°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (30.9°F).

  • Average low temperature in December: 25.5°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).

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Average pressure in December
Blandinsville, IL

Average pressure in December - Blandinsville, IL
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in December
Blandinsville, IL

Average wind speed in December - Blandinsville, IL
  • Average wind speed in December: 10.1mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).

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Average humidity in December
Blandinsville, IL

Average humidity in December - Blandinsville, IL
  • Average humidity in December: 79%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in December
Blandinsville, IL

Average rainfall in December - Blandinsville, IL
  • Average rainfall in December: 0.98"

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is January (0.83").

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Average rainfall days in December
Blandinsville, IL

Average rainfall days in December - Blandinsville, IL
  • Average rainfall days in December: 5.6 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (4.3 days).

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Average snowfall in December
Blandinsville, IL

Average snowfall in December - Blandinsville, IL
  • Average snowfall in December: 1.3"

The month with the highest snowfall is January (3.15").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Blandinsville, IL

Average snowfall days in December - Blandinsville, IL
  • Average snowfall days in December: 5.4 days

The month with the highest number of snowfall days is January (8.5 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
Blandinsville, IL

Average daylight in December / Average sunshine in December - Blandinsville, IL
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 4h and 3min

The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days in December
Blandinsville, IL

Average sunshine days in December - Blandinsville, IL
  • Average sunshine days in December: 20 days

The month with the most sunshine days is December (20 days).
The months with the least sunshine days are May and June (11.8 days).

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Average UV index in December
Blandinsville, IL

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

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in December
Blandinsville, IL

Average cloud cover in December - Blandinsville, IL
  • Average cloud cover in December: 51

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 30).

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Average visibility in December
Blandinsville, IL

Average visibility in December - Blandinsville, 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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Blandinsville, Illinois, USA

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