December weather forecast
East Lynn, IL

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Weather in December

The first month of the winter, December, is still a cold month in East Lynn, Illinois, with an average temperature varying between 37.4°F (3°C) and 26.8°F (-2.9°C).

Temperature

The arrival of December corresponds with a shift in temperature, down from a chilly 48°F (8.9°C) in November to an icy 37.4°F (3°C). During December, the nighttime temperature in East Lynn, Illinois, averages of 26.8°F (-2.9°C).

Humidity

In December, the average relative humidity in East Lynn is 81%.

Rainfall

December is the month with the least rainfall in East Lynn. Rain falls for 9.8 days and accumulates 1.73" (44mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In East Lynn, during December, snow falls for 7.7 days and regularly aggregates up to 2.48" (63mm) of snow. In East Lynn, during the entire year, snow falls for 35.7 days and aggregates up to 13.27" (337mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 6:55 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:34 pm CST.

Sunshine

In December, the average sunshine is 4.3h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index in East Lynn, Illinois. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 1 in December converts into the following recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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Frequently asked questions

How cold is December in East Lynn?

An average high-temperature, in December, in East Lynn, is 37.4°F (3°C) and the average low-temperature is 26.8°F (-2.9°C). In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 87.8°F (31°C).

What is the average humidity in December in East Lynn?

In East Lynn, Illinois, the average relative humidity in December is 81%.

What is the driest month in East Lynn?

December is the month with the least rainfall in East Lynn. Rain falls for 9.8 days and accumulates 1.73" (44mm) of precipitation.

How much does it rain in East Lynn in December?

In December, in East Lynn, Illinois, the rain falls for 9.8 days. Throughout December, 1.73" (44mm) of precipitation is accumulated.

How many days does it snow in December in East Lynn?

In East Lynn, in December, snow falls for 7.7 days, with typically accumulated 2.48" (63mm) of snow.

What is the month with the shortest days in East Lynn?

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

What is the average length of the day in December in East Lynn?

In East Lynn, the average day length in December is 9h and 20min.

When is the sunrise / sunset in December in East Lynn?

On the first day of December in East Lynn, Illinois, sunrise is at 6:55 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:34 pm CST.

How long on average sun shines in December in East Lynn?

In December, the average sunshine duration in East Lynn is 4.3h.

When is the lowest UV index in East Lynn?

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

What is the UV index intensity in December in East Lynn?

The average daily maximum UV index in December in East Lynn, Illinois, is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health 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
East Lynn, IL

Average temperature in December - East Lynn, IL
  • Average high temperature in December: 37.4°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.1°F).

  • Average low temperature in December: 26.8°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 (19.6°F).

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Average pressure in December
East Lynn, IL

Average pressure in December - East Lynn, 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 (29.93"Hg).

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Average wind speed in December
East Lynn, IL

Average wind speed in December - East Lynn, IL
  • Average wind speed in December: 9.9mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

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Average humidity in December
East Lynn, IL

Average humidity in December - East Lynn, 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
East Lynn, IL

Average rainfall in December - East Lynn, IL
  • Average rainfall in December: 1.73"

The wettest month (with the highest rainfall) is May (4.06").
The driest month (with the least rainfall) is December (1.73").

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Average rainfall days in December
East Lynn, IL

Average rainfall days in December - East Lynn, IL
  • Average rainfall days in December: 9.8 days

The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (6.8 days).

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Average snowfall in December
East Lynn, IL

Average snowfall in December - East Lynn, IL
  • Average snowfall in December: 2.48"

The month with the highest snowfall is January (4.06").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
East Lynn, IL

Average snowfall days in December - East Lynn, 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
East Lynn, IL

Average daylight in December / Average sunshine in December - East Lynn, 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 2min

The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in December
East Lynn, IL

Average sunshine days in December - East Lynn, IL
  • Average sunshine days in December: 16.2 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is May (10.3 days).

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Average UV index in December
East Lynn, IL

Average UV index in December - East Lynn, IL
  • Average UV index in December: 1

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

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Average cloud cover in December
East Lynn, IL

Average cloud cover in December - East Lynn, IL
  • Average cloud cover in December: 56

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

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Average visibility in December
East Lynn, IL

Average visibility in December - East Lynn, 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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East Lynn, Illinois, USA

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