January weather forecast
Mark, IL

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Weather in January

January, like December, is another subzero cold winter month in Mark, Illinois, with temperature in the range of an average high of 28.9°F (-1.7°C) and an average low of 16.9°F (-8.4°C).

Temperature

Mark's January weather reaches an average high of 28.9°F (-1.7°C) and an average low of 16.9°F (-8.4°C), making it the coldest month.

Humidity

In January, the average relative humidity is 83%.

Rainfall

January and December are months with the least rain in Mark when the rain falls for 5.9 days and typically aggregates up to 1.61" (41mm) of rain.

Snowfall

Months with snowfall in Mark are January through April, October through December. January is the month with the most snowfall in Mark. Snow falls for 11.9 days and accumulates 4.09" (104mm) of snow.

Daylight

In January, the average length of the day in Mark is 9h and 36min.
On the first day of January, sunrise is at 7:22 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:11 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 3.9h of sunshine.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index, 1 in January, 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. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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Frequently asked questions

What part of the year is the coldest in Mark?

With average high temperatures of 28.9°F (-1.7°C) and lows of 16.9°F (-8.4°C), January is the coldest month in Mark.

How cold is it in Mark in January?

The high-temperature during January is 28.9°F (-1.7°C) and the low-temperature is 16.9°F (-8.4°C).

What is the average humidity in January in Mark?

In Mark, Illinois, the average relative humidity in January is 83%.

What is the driest month in Mark?

January and December are months with the least rain in Mark when the rain falls for 5.9 days and typically aggregates up to 1.61" (41mm) of rain.

How much does it rain in Mark in January?

In January, the rain falls for 5.9 days. Throughout January, 1.61" (41mm) of precipitation is accumulated.

What is the snowiest month in Mark?

The month with the most snowfall is January, when snow falls for 11.9 days and typically aggregates up to 4.09" (104mm) of snow.

How many days does it snow in January in Mark?

In Mark, in January, during 11.9 snowfall days, 4.09" (104mm) of snow is typically accumulated.

What is the average length of the day in January in Mark?

In January, the average day length in Mark, Illinois, is 9h and 36min.

When is the sunrise / sunset in January in Mark?

In January, on the first day of the month, sunrise is at 7:22 am and sunset at 4:38 pm. On the last day of the month, in Mark, sunrise is at 7:09 am and sunset at 5:11 pm CST.

What is the month with the least sunshine in Mark?

The month with the least sunshine is January, with an average of 3.9h of sunshine.

How many hours of sunshine does Mark have in January?

In January, the average sunshine duration in Mark is 3.9h.

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

January and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index intensity in January in Mark?

In January, the average daily maximum UV index is 1. A UV Index reading 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 January
Mark, IL

Average temperature in January - Mark, IL
  • Average high temperature in January: 28.9°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (28.9°F).

  • Average low temperature in January: 16.9°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 (16.9°F).

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Average pressure in January
Mark, IL

Average pressure in January - Mark, IL
  • Average pressure in January: 30.13"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 January
Mark, IL

Average wind speed in January - Mark, IL
  • Average wind speed in January: 10.3mph

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

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Average humidity in January
Mark, IL

Average humidity in January - Mark, IL
  • Average humidity in January: 83%

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 January
Mark, IL

Average rainfall in January - Mark, IL
  • Average rainfall in January: 1.61"

The wettest month (with the highest rainfall) is May (4.69").
The driest months (with the least rainfall) are January and December (1.61").

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Average rainfall days in January
Mark, IL

Average rainfall days in January - Mark, IL
  • Average rainfall days in January: 5.9 days

The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is January (5.9 days).

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Average snowfall in January
Mark, IL

Average snowfall in January - Mark, IL
  • Average snowfall in January: 4.09"

The month with the highest snowfall is January (4.09").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Mark, IL

Average snowfall days in January - Mark, IL
  • Average snowfall days in January: 11.9 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 and August (0 days).

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Average daylight in January /
Average sunshine in January
Mark, IL

Average daylight in January / Average sunshine in January - Mark, IL
  • Average daylight in January: 9h and 4min

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 January: 3h and 5min

The months with the most sunshine are June, July 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 January
Mark, IL

Average sunshine days in January - Mark, IL
  • Average sunshine days in January: 14 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is April (10.2 days).

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Average UV index in January
Mark, IL

Average UV index in January - Mark, IL
  • Average UV index in January: 1

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

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Average cloud cover in January
Mark, IL

Average cloud cover in January - Mark, IL
  • Average cloud cover in January: 59

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 January
Mark, IL

Average visibility in January - Mark, IL
  • Average visibility in January: 5mi

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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Mark, Illinois, USA

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