December weather forecast
Indian Spring, IL

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Weather in December

December, the first month of the winter in Indian Spring, is still a cold month, with temperature in the range of an average low of 25.3°F (-3.7°C) and an average high of 35.6°F (2°C).

Temperature

December brings a decrease in the average high-temperature, falling from November's frosty 47.3°F (8.5°C) to a wintry 35.6°F (2°C). An average low-temperature of 25.3°F (-3.7°C) is expected during December.

Humidity

In December, the average relative humidity in Indian Spring is 81%.

Rainfall

The months with the least rainfall are January and December Rain falls for 7.5 days and accumulates 1.57" (40mm) of rain.

Snowfall

January through April, October through December are months with snowfall in Indian Spring. In Indian Spring, during December, snow falls for 7 days and regularly aggregates up to 2.28" (58mm) of snow. Throughout the year, there are 36.7 snowfall days, and 14.09" (358mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 7:04 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:38 pm CST.

Sunshine

In Indian Spring, the average sunshine in December is 4.2h.

UV index

In Indian Spring, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In December, a regular UV index of 2 translates into these guidelines:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. 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 it in Indian Spring in December?

In December, the average high-temperature and low-temperature in Indian Spring are 35.6°F (2°C) and 25.3°F (-3.7°C) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in July is estimated at 87.8°F (31°C).

What is the average humidity in December in Indian Spring?

In December, the average relative humidity is 81%.

What is the driest month in Indian Spring?

January and December are months with the least rain when the rain falls for 7.5 days and typically aggregates up to 1.57" (40mm) of rain.

How much does it rain in Indian Spring in December?

In Indian Spring, in December, during 7.5 rainfall days, 1.57" (40mm) of precipitation is typically accumulated.

How many days does it snow in December in Indian Spring?

In December, in Indian Spring, Illinois, it is snowing for 7 days. Throughout December, 2.28" (58mm) of snow is accumulated.

What is the month with the shortest days in Indian Spring?

With an average of 9h and 18min of daylight, December has the shortest days of the year in Indian Spring, Illinois.

How many hours of daylight does Indian Spring have in December?

In December, the average day length in Indian Spring is 9h and 16min.

What time are sunrise and sunset in December in Indian Spring?

In December, on the first day of the month, sunrise is at 7:04 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:38 pm CST.

How many hours of sunshine does Indian Spring have in December?

In Indian Spring, the average sunshine duration in December is 4.2h.

How high is the UV index in December in Indian Spring?

In Indian Spring, Illinois, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk 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
Indian Spring, IL

Average temperature in December - Indian Spring, IL
  • Average high temperature in December: 35.6°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.3°F).

  • Average low temperature in December: 25.3°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).

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Average pressure in December
Indian Spring, IL

Average pressure in December - Indian Spring, 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 (29.91"Hg).

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Average wind speed in December
Indian Spring, IL

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

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

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Average humidity in December
Indian Spring, IL

Average humidity in December - Indian Spring, 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 (72%).

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Average rainfall in December
Indian Spring, IL

Average rainfall in December - Indian Spring, IL
  • Average rainfall in December: 1.57"

The wettest month (with the highest rainfall) is May (4.41").
The driest months (with the least rainfall) are January and December (1.57").

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Average rainfall days in December
Indian Spring, IL

Average rainfall days in December - Indian Spring, IL
  • Average rainfall days in December: 7.5 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is February (5.9 days).

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Average snowfall in December
Indian Spring, IL

Average snowfall in December - Indian Spring, IL
  • Average snowfall in December: 2.28"

The month with the highest snowfall is February (3.7").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Indian Spring, IL

Average snowfall days in December - Indian Spring, IL
  • Average snowfall days in December: 7 days

The month with the highest number of snowfall days is January (11.2 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
Indian Spring, IL

Average daylight in December / Average sunshine in December - Indian Spring, 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 1min

The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in December
Indian Spring, IL

Average sunshine days in December - Indian Spring, IL
  • Average sunshine days in December: 16.8 days

The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is May (10.7 days).

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Average UV index in December
Indian Spring, IL

Average UV index in December - Indian Spring, IL
  • Average UV index in December: 2

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

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Average cloud cover in December
Indian Spring, IL

Average cloud cover in December - Indian Spring, IL
  • Average cloud cover in December: 55

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 32).

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Average visibility in December
Indian Spring, IL

Average visibility in December - Indian Spring, IL
  • Average visibility in December: 6mi

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

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Indian Spring, Illinois, USA

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