December weather forecast
Ransom, IL

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Weather in December

December, the first month of the winter in Ransom, is also a wintry month, with an average temperature ranging between min 25.2°F (-3.8°C) and max 35.1°F (1.7°C).

Temperature

December comes with a drop in the average high-temperature, falling from November's chilly 47.1°F (8.4°C) to an icy 35.1°F (1.7°C). Throughout December in Ransom, a steady low-temperature average of 25.2°F (-3.8°C) is noted.

Humidity

In December, the average relative humidity is 82%.

Rainfall

The month with the least rainfall is December, when the rain falls for 7.6 days and typically collects 1.65" (42mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Ransom, during December, snow falls for 8.2 days and regularly aggregates up to 2.52" (64mm) of snow. In Ransom, during the entire year, snow falls for 39.8 days and aggregates up to 15.71" (399mm) of snow.

Daylight

December has the shortest days of the year in Ransom, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:01 am and sunset at 4:26 pm. On the last day of December, in Ransom, sunrise is at 7:19 am and sunset at 4:36 pm CST.

Sunshine

In Ransom, the average sunshine in December is 4.3h.

UV index

In Ransom, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 2 during December translates into the following directions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
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Frequently asked questions

How cold is it in Ransom in December?

An average high-temperature, in December, in Ransom, is 35.1°F (1.7°C) and the average low-temperature is 25.2°F (-3.8°C). In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is estimated at 87.8°F (31°C).

What is the average humidity in December in Ransom?

In Ransom, Illinois, the average relative humidity in December is 82%.

What is the driest month in Ransom?

The month with the least rainfall is December, when the rain falls for 7.6 days and typically collects 1.65" (42mm) of precipitation.

How many days does it rain in December in Ransom?

In Ransom, in December, during 7.6 rainfall days, 1.65" (42mm) of precipitation is typically accumulated.

How many days does it snow in December in Ransom?

In December, in Ransom, it is snowing for 8.2 days. Throughout December, 2.52" (64mm) of snow is accumulated.

What is the month with the shortest days in Ransom?

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 Ransom?

The average day length in December in Ransom is 9h and 16min.

What time are sunrise and sunset in December in Ransom?

On the first day of December in Ransom, Illinois, sunrise is at 7:01 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:36 pm CST.

How many hours of sunshine does Ransom have in December?

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

What is the UV index intensity in December in Ransom?

In Ransom, Illinois, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Ransom, IL

Average temperature in December - Ransom, IL
  • Average high temperature in December: 35.1°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.1°F).

  • Average low temperature in December: 25.2°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).

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Average pressure in December
Ransom, IL

Average pressure in December - Ransom, IL
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in December
Ransom, IL

Average wind speed in December - Ransom, IL
  • Average wind speed in December: 9.5mph

The windiest months (with the highest average wind speed) are January and April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

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Average humidity in December
Ransom, IL

Average humidity in December - Ransom, IL
  • Average humidity in December: 82%

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
Ransom, IL

Average rainfall in December - Ransom, IL
  • Average rainfall in December: 1.65"

The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is December (1.65").

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Average rainfall days in December
Ransom, IL

Average rainfall days in December - Ransom, IL
  • Average rainfall days in December: 7.6 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5.8 days).

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Average snowfall in December
Ransom, IL

Average snowfall in December - Ransom, IL
  • Average snowfall in December: 2.52"

The month with the highest snowfall is February (4.57").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Ransom, IL

Average snowfall days in December - Ransom, IL
  • Average snowfall days in December: 8.2 days

The month with the highest number of snowfall days is January (11.9 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
Ransom, IL

Average daylight in December / Average sunshine in December - Ransom, 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 2min

The months with the most sunshine are June and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in December
Ransom, IL

Average sunshine days in December - Ransom, IL
  • Average sunshine days in December: 16.5 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is June (10.1 days).

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Average UV index in December
Ransom, IL

Average UV index in December - Ransom, 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
Ransom, IL

Average cloud cover in December - Ransom, IL
  • Average cloud cover in December: 55

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

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Average visibility in December
Ransom, IL

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

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