December weather forecast
Shetlerville, IL

Weather in December

The first month of the winter, December, is still a chilly month in Shetlerville, Illinois, with an average temperature ranging between min 33.4°F (0.8°C) and max 45.5°F (7.5°C).

Temperature

In Shetlerville, Illinois, the average high-temperature in December decreases from a fresh 54.5°F (12.5°C) in November to a chilly 45.5°F (7.5°C). In December, the average low-temperature is 33.4°F (0.8°C).

Humidity

In December, the average relative humidity is 78%.

Rainfall

In Shetlerville, during December, the rain falls for 10.8 days and regularly aggregates up to 2.05" (52mm) of precipitation. In Shetlerville, during the entire year, the rain falls for 148.8 days and collects up to 27.05" (687mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Shetlerville. In Shetlerville, in December, during 3.2 snowfall days, 0.51" (13mm) of snow is typically accumulated. Throughout the year, there are 15 snowfall days, and 4.8" (122mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Shetlerville, with an average of 9h and 38min of daylight.
On the first day of December, sunrise is at 6:49 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 4:45 pm CST.

Sunshine

The average sunshine in December is 4.8h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Shetlerville, Illinois. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 2 in December transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Shetlerville?

In Shetlerville, in December, the average high-temperature is 45.5°F (7.5°C), and the average low-temperature is 33.4°F (0.8°C). in August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is computed to be 95°F (35°C).

What is the average humidity in December in Shetlerville?

In December, the average relative humidity in Shetlerville is 78%.

How much does it rain in Shetlerville in December?

In Shetlerville, Illinois, in December, during 10.8 rainfall days, 2.05" (52mm) of precipitation is typically accumulated.

How much does it snow in Shetlerville in December?

In Shetlerville, during December, snow falls for 3.2 days and regularly aggregates up to 0.51" (13mm) of snow.

What is the month with the shortest days in Shetlerville?

The month with the shortest days is December, with an average of 9h and 38min of daylight.

How many hours of daylight does Shetlerville have in December?

The average day length in December in Shetlerville is 9h and 38min.

What time are sunrise and sunset in December in Shetlerville?

On the first day of December in Shetlerville, Illinois, sunrise is at 6:49 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 4:45 pm CST.

How many hours of sunshine does Shetlerville have in December?

The average sunshine duration in December in Shetlerville, Illinois, is 4.8h.

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

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

What is the UV index intensity in December in Shetlerville?

The average daily maximum UV index in December in Shetlerville is 2. A UV Index of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Shetlerville, IL

Average temperature in December - Shetlerville, IL
  • Average high temperature in December: 45.5°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (40.5°F).

  • Average low temperature in December: 33.4°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 (27.5°F).

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Average pressure in December
Shetlerville, IL

Average pressure in December - Shetlerville, 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 (29.95"Hg).

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Average wind speed in December
Shetlerville, IL

Average wind speed in December - Shetlerville, IL
  • Average wind speed in December: 8.8mph

The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity in December
Shetlerville, IL

Average humidity in December - Shetlerville, IL
  • Average humidity in December: 78%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in December
Shetlerville, IL

Average rainfall in December - Shetlerville, IL
  • Average rainfall in December: 2.05"

The wettest month (with the highest rainfall) is February (3.03").
The driest month (with the least rainfall) is September (1.3").

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Average rainfall days in December
Shetlerville, IL

Average rainfall days in December - Shetlerville, IL
  • Average rainfall days in December: 10.8 days

The months with the highest number of rainy days are May and July (16.3 days).
The month with the least rainy days is November (8.8 days).

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Average snowfall in December
Shetlerville, IL

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

The month with the highest snowfall is February (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Shetlerville, IL

Average snowfall days in December - Shetlerville, IL
  • Average snowfall days in December: 3.2 days

The month with the highest number of snowfall days is January (4.5 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
Shetlerville, IL

Average daylight in December / Average sunshine in December - Shetlerville, IL
  • Average daylight in December: 9h and 38min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 38min).

  • Average sunshine in December: 4h and 48min

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

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Average sunshine days in December
Shetlerville, IL

Average sunshine days in December - Shetlerville, IL
  • Average sunshine days in December: 18.2 days

The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is July (12.1 days).

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Average UV index in December
Shetlerville, IL

Average UV index in December - Shetlerville, 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
Shetlerville, IL

Average cloud cover in December - Shetlerville, IL
  • Average cloud cover in December: 49

The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June, August and September (Cloud cover 28).

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Average visibility in December
Shetlerville, IL

Average visibility in December - Shetlerville, 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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