December weather forecast
Ashkum, IL

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Weather in December

December, the first month of the winter in Ashkum, is also an icy month, with an average temperature fluctuating between 26.1°F (-3.3°C) and 36.5°F (2.5°C).

Temperature

A shift in Ashkum's weather is observed as November turns into December, with the average high temperature reducing from a chilly 47.7°F (8.7°C) to a wintry 36.5°F (2.5°C). During December nights, Ashkum records an average temperature of 26.1°F (-3.3°C).

Humidity

In December, the average relative humidity is 81%.

Rainfall

The months with the least rainfall in Ashkum are January, February and December Rain falls for 6.8 days and accumulates 1.06" (27mm) of rain.

Snowfall

January through April, October through December are months with snowfall. In Ashkum, during December, snow falls for 7.7 days and regularly aggregates up to 1.34" (34mm) of snow. Throughout the year, there are 35.3 snowfall days, and 9.37" (238mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Ashkum, with an average of 9h and 18min of daylight.
On the first day of December in Ashkum, Illinois, sunrise is at 6:57 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:34 pm CST.

Sunshine

The average sunshine in December is 4.3h.

UV index

The month with the lowest UV index in Ashkum is December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: An average maximum UV index of 1 in December leads to these recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

How cold is December in Ashkum?

In December, in Ashkum, the average high-temperature is 36.5°F (2.5°C), and the average low-temperature is 26.1°F (-3.3°C). In July, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is evaluated at 87.8°F (31°C).

What is the average humidity in December in Ashkum?

The average relative humidity in December is 81%.

What is the driest month in Ashkum?

The months with the least rainfall in Ashkum are January, February and December Rain falls for 6.8 days and accumulates 1.06" (27mm) of rain.

How much does it rain in Ashkum in December?

In Ashkum, Illinois, during December, the rain falls for 6.8 days and regularly aggregates up to 1.06" (27mm) of precipitation.

How many days does it snow in December in Ashkum?

In Ashkum, Illinois, in December, during 7.7 snowfall days, 1.34" (34mm) of snow is typically accumulated.

What is the month with the shortest days in Ashkum?

December has the shortest days of the year, with an average of 9h and 18min of daylight.

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

The average day length in December in Ashkum is 9h and 18min.

When are sunrise and sunset in December in Ashkum?

On the first day of December in Ashkum, Illinois, sunrise is at 6:57 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:34 pm CST.

How long on average sun shines in December in Ashkum?

In December, the average sunshine duration is 4.3h.

When is the lowest UV index in Ashkum?

With an average maximum UV index of 1, December is the month with the lowest UV index in Ashkum, Illinois.

How high is the UV index in December in Ashkum?

In December, the average daily maximum UV index in Ashkum is 1. A UV Index reading of 2, and below, represents a low health threat 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
Ashkum, IL

Average temperature in December - Ashkum, IL
  • Average high temperature in December: 36.5°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30.2°F).

  • Average low temperature in December: 26.1°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

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Average pressure in December
Ashkum, IL

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in December
Ashkum, IL

Average wind speed in December - Ashkum, IL
  • Average wind speed in December: 9.7mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

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Average humidity in December
Ashkum, IL

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

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in December
Ashkum, IL

Average rainfall in December - Ashkum, IL
  • Average rainfall in December: 1.06"

The wettest month (with the highest rainfall) is May (3.19").
The driest months (with the least rainfall) are January, February and December (1.06").

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Average rainfall days in December
Ashkum, IL

Average rainfall days in December - Ashkum, IL
  • Average rainfall days in December: 6.8 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (5.1 days).

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Average snowfall in December
Ashkum, IL

Average snowfall in December - Ashkum, IL
  • Average snowfall in December: 1.34"

The month with the highest snowfall is February (2.48").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Ashkum, IL

Average snowfall days in December - Ashkum, IL
  • Average snowfall days in December: 7.7 days

The month with the highest number of snowfall days is January (10.8 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
Ashkum, IL

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

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 18min).

  • Average sunshine in December: 4h and 2min

The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in December
Ashkum, IL

Average sunshine days in December - Ashkum, IL
  • Average sunshine days in December: 17.7 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (10 days).

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Average UV index in December
Ashkum, IL

Average UV index in December - Ashkum, IL
  • Average UV index in December: 1

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

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Average cloud cover in December
Ashkum, IL

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

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 34).

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Average visibility in December
Ashkum, IL

Average visibility in December - Ashkum, IL
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).

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Ashkum, Illinois, USA

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