December weather forecast
Modoc, IL

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Weather in December

The first month of the winter, December, is still a chilly month in Modoc, Illinois, with an average temperature ranging between max 43.9°F (6.6°C) and min 31.1°F (-0.5°C).

Temperature

The beginning of December involves a decrease in the average high-temperature, transitioning from a fresh 54°F (12.2°C) in November to a frosty 43.9°F (6.6°C). Throughout the nights in December, an average low-temperature of 31.1°F (-0.5°C) is noted.

Humidity

The average relative humidity in December in Modoc, Illinois, is 76%.

Rainfall

In Modoc, during December, the rain falls for 8.8 days and regularly aggregates up to 2.24" (57mm) of precipitation. Throughout the year, there are 145 rainfall days, and 32.24" (819mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. In Modoc, in December, snow falls for 2.6 days, with typically accumulated 0.98" (25mm) of snow. In Modoc, during the entire year, snow falls for 15.8 days and aggregates up to 6.77" (172mm) of snow.

Daylight

With an average of 9h and 36min of daylight, December has the shortest days of the year in Modoc.
On the first day of December in Modoc, sunrise is at 6:58 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:50 pm CST.

Sunshine

The average sunshine in December in Modoc is 4.9h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 2 in December suggests the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Frequently asked questions

How cold is it in Modoc in December?

During December, Modoc experiences an average high-temperature of 43.9°F (6.6°C) and a low-temperature of 31.1°F (-0.5°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is evaluated at 98.6°F (37°C).

What is the average humidity in December in Modoc?

In Modoc, the average relative humidity in December is 76%.

How much does it rain in Modoc in December?

In December, in Modoc, Illinois, the rain falls for 8.8 days. Throughout December, 2.24" (57mm) of precipitation is accumulated.

How much does it snow in Modoc in December?

In December, in Modoc, Illinois, it is snowing for 2.6 days. Throughout December, 0.98" (25mm) of snow is accumulated.

What is the month with the shortest days in Modoc?

With an average of 9h and 36min of daylight, December has the shortest days of the year in Modoc.

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

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

When is the sunrise / sunset in December in Modoc?

On the first day of December, sunrise is at 6:58 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:50 pm CST.

How many hours of sunshine does Modoc have in December?

In Modoc, Illinois, the average sunshine duration in December is 4.9h.

What are the months with the lowest UV index in Modoc?

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

What is the UV index intensity in December in Modoc?

In December, the average daily maximum UV index in Modoc, Illinois, is 2. 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
Modoc, IL

Average temperature in December - Modoc, IL
  • Average high temperature in December: 43.9°F

The warmest month (with the highest average high temperature) is July (87.6°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 (68.4°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).

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Average pressure in December
Modoc, IL

Average pressure in December - Modoc, IL
  • Average pressure in December: 30.13"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
Modoc, IL

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

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

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Average humidity in December
Modoc, IL

Average humidity in December - Modoc, IL
  • Average humidity in December: 76%

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
Modoc, IL

Average rainfall in December - Modoc, IL
  • Average rainfall in December: 2.24"

The wettest month (with the highest rainfall) is May (3.86").
The driest months (with the least rainfall) are February and September (1.81").

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Average rainfall days in December
Modoc, IL

Average rainfall days in December - Modoc, IL
  • Average rainfall days in December: 8.8 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in December
Modoc, IL

Average snowfall in December - Modoc, IL
  • Average snowfall in December: 0.98"

The months with the highest snowfall are January and February (2.36").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Modoc, IL

Average snowfall days in December - Modoc, IL
  • Average snowfall days in December: 2.6 days

The month with the highest number of snowfall days is January (5.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Modoc, IL

Average daylight in December / Average sunshine in December - Modoc, 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: 4h and 5min

The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days in December
Modoc, IL

Average sunshine days in December - Modoc, IL
  • Average sunshine days in December: 19.7 days

The month with the most sunshine days is December (19.7 days).
The month with the least sunshine days is July (12.3 days).

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Average UV index in December
Modoc, IL

Average UV index in December - Modoc, 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
Modoc, IL

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

The months with the most cloud cover are January and February (Cloud cover 49).
The months with the least cloud cover are June and August (Cloud cover 28).

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Average visibility in December
Modoc, IL

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

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