December weather forecast
Kaskaskia, IL

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Weather in December

The first month of the winter, December, is still a chilly month in Kaskaskia, Illinois, with an average temperature varying between 31.1°F (-0.5°C) and 43.7°F (6.5°C).

Temperature

During the transition into December, Kaskaskia observes a decrease in the average high-temperature, falling from a cool 53.8°F (12.1°C) in November to a frosty 43.7°F (6.5°C). Kaskaskia records a steady low-temperature average of 31.1°F (-0.5°C) during December.

Humidity

In Kaskaskia, Illinois, the average relative humidity in December is 77%.

Rainfall

In Kaskaskia, during December, the rain falls for 9.1 days and regularly aggregates up to 2.4" (61mm) of precipitation. In Kaskaskia, during the entire year, the rain falls for 156.4 days and collects up to 34.25" (870mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Kaskaskia, during December, snow falls for 3 days and regularly aggregates up to 1.18" (30mm) of snow. In Kaskaskia, during the entire year, snow falls for 16 days and aggregates up to 6.89" (175mm) of snow.

Daylight

With an average of 9h and 36min of daylight, December has the shortest days of the year in Kaskaskia, Illinois.
On the first day of the month, sunrise is at 6:57 am and sunset at 4:40 pm. On the last day of December, sunrise is at 7:15 am and sunset at 4:50 pm CST.

Sunshine

In December, the average sunshine in Kaskaskia is 5h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: During December, 2 as the daily maximum UV index converts into the following advice:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
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Frequently asked questions

How cold does it get in Kaskaskia in December?

The high-temperature, in December, in Kaskaskia, records 43.7°F (6.5°C), while the low-temperature is 31.1°F (-0.5°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is appraised at 98.6°F (37°C).

What is the average humidity in December in Kaskaskia?

The average relative humidity in December in Kaskaskia is 77%.

How much does it rain in Kaskaskia in December?

In December, in Kaskaskia, the rain falls for 9.1 days. Throughout December, 2.4" (61mm) of precipitation is accumulated.

How many days does it snow in December in Kaskaskia?

In December, in Kaskaskia, it is snowing for 3 days. Throughout December, 1.18" (30mm) of snow is accumulated.

What is the month with the shortest days in Kaskaskia?

December has the shortest days of the year in Kaskaskia, Illinois, with an average of 9h and 36min of daylight.

How many hours of daylight does Kaskaskia have in December?

In Kaskaskia, the average day length in December is 9h and 35min.

What time are sunrise and sunset in December in Kaskaskia?

In December, on the first day of the month, sunrise is at 6:57 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:50 pm CST.

How long on average sun shines in December in Kaskaskia?

In Kaskaskia, Illinois, the average sunshine duration in December is 5h.

When is the lowest UV index in Kaskaskia?

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

What is the UV index reading in December in Kaskaskia?

In Kaskaskia, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to 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
Kaskaskia, IL

Average temperature in December - Kaskaskia, IL
  • Average high temperature in December: 43.7°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.6°F).

  • Average low temperature in December: 31.1°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

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Average pressure in December
Kaskaskia, IL

Average pressure in December - Kaskaskia, IL
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Kaskaskia, IL

Average wind speed in December - Kaskaskia, IL
  • Average wind speed in December: 8.6mph

The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in December
Kaskaskia, IL

Average humidity in December - Kaskaskia, IL
  • Average humidity in December: 77%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in December
Kaskaskia, IL

Average rainfall in December - Kaskaskia, IL
  • Average rainfall in December: 2.4"

The wettest month (with the highest rainfall) is April (4.13").
The driest month (with the least rainfall) is September (1.97").

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Average rainfall days in December
Kaskaskia, IL

Average rainfall days in December - Kaskaskia, IL
  • Average rainfall days in December: 9.1 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.9 days).

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Average snowfall in December
Kaskaskia, IL

Average snowfall in December - Kaskaskia, IL
  • Average snowfall in December: 1.18"

The month with the highest snowfall is February (2.56").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Kaskaskia, IL

Average snowfall days in December - Kaskaskia, IL
  • Average snowfall days in December: 3 days

The month with the highest number of snowfall days is February (5.2 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
Kaskaskia, IL

Average daylight in December / Average sunshine in December - Kaskaskia, IL
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 5h and 0min

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

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Average sunshine days in December
Kaskaskia, IL

Average sunshine days in December - Kaskaskia, IL
  • Average sunshine days in December: 18.7 days

The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is July (9.8 days).

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Average UV index in December
Kaskaskia, IL

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

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

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Average cloud cover in December
Kaskaskia, IL

Average cloud cover in December - Kaskaskia, IL
  • Average cloud cover in December: 47

The months with the most cloud cover are January and February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 27).

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Average visibility in December
Kaskaskia, IL

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

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