January weather forecast
Grand Chain, IL

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Weather in January

January, the same as December, is an icy winter month in Grand Chain, Illinois, with an average temperature fluctuating between 40.1°F (4.5°C) and 27°F (-2.8°C).

Temperature

January, with average temperatures reaching a high of 40.1°F (4.5°C) and a low of 27°F (-2.8°C), is the coldest month.

Humidity

The average relative humidity in January in Grand Chain is 76%.

Rainfall

In Grand Chain, during January, the rain falls for 7.3 days and regularly aggregates up to 0.75" (19mm) of precipitation. In Grand Chain, during the entire year, the rain falls for 118.3 days and collects up to 13.03" (331mm) of precipitation.

Snowfall

Months with snowfall in Grand Chain are January through March, November and December. In Grand Chain, during January, snow falls for 3.3 days and regularly aggregates up to 0.35" (9mm) of snow. Throughout the year, there are 11 snowfall days, and 1.57" (40mm) of snow is accumulated.

Daylight

The average length of the day in January in Grand Chain is 9h and 57min.
On the first day of the month, sunrise is at 7:09 am and sunset at 4:49 pm. On the last day of January, in Grand Chain, sunrise is at 6:59 am and sunset at 5:19 pm CST.

Sunshine

January and February, with an average of 4.6h of sunshine, are months with the least sunshine in Grand Chain, Illinois.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: A daily maximum UV index of 2 in January translates into the following instructions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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Frequently asked questions

What is the coldest month in Grand Chain?

The coldest month in Grand Chain, Illinois, is January, with an average high-temperature of 40.1°F (4.5°C) and an average low-temperature of 27°F (-2.8°C).

Is it cold in Grand Chain during January?

In January, the average high-temperature and low-temperature in Grand Chain are 40.1°F (4.5°C) and 27°F (-2.8°C) respectively.

What is the average humidity in January in Grand Chain?

In January, the average relative humidity in Grand Chain is 76%.

How much does it rain in Grand Chain in January?

In January, the rain falls for 7.3 days. Throughout January, 0.75" (19mm) of precipitation is accumulated.

How much does it snow in Grand Chain in January?

In Grand Chain, Illinois, during January, snow falls for 3.3 days and regularly aggregates up to 0.35" (9mm) of snow.

What is the average length of the day in January in Grand Chain?

In Grand Chain, Illinois, the average day length in January is 9h and 57min.

When are sunrise and sunset in January in Grand Chain?

In January, on the first day of the month, sunrise is at 7:09 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 5:19 pm CST.

What is the month with the least sunshine in Grand Chain?

January and February, with an average of 4.6h of sunshine, are months with the least sunshine.

How long on average sun shines in January in Grand Chain?

The average sunshine duration in January in Grand Chain, Illinois, is 4.6h.

When is the lowest UV index in Grand Chain?

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

How high is the UV index in January in Grand Chain?

The average daily maximum UV index in January in Grand Chain is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health 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
Grand Chain, IL

Average temperature in January - Grand Chain, IL
  • Average high temperature in January: 40.1°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in January: 27°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27°F).

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Average pressure in January
Grand Chain, IL

Average pressure in January - Grand Chain, IL
  • Average pressure in January: 30.16"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in January
Grand Chain, IL

Average wind speed in January - Grand Chain, IL
  • Average wind speed in January: 9mph

The windiest months (with the highest average wind speed) are January and February (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity in January
Grand Chain, IL

Average humidity in January - Grand Chain, IL
  • Average humidity in January: 76%

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in January
Grand Chain, IL

Average rainfall in January - Grand Chain, IL
  • Average rainfall in January: 0.75"

The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is September (0.47").

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Average rainfall days in January
Grand Chain, IL

Average rainfall days in January - Grand Chain, IL
  • Average rainfall days in January: 7.3 days

The month with the highest number of rainy days is July (13.1 days).
The months with the least rainy days are January, February and December (7.3 days).

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Average snowfall in January
Grand Chain, IL

Average snowfall in January - Grand Chain, IL
  • Average snowfall in January: 0.35"

The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in January
Grand Chain, IL

Average snowfall days in January - Grand Chain, IL
  • Average snowfall days in January: 3.3 days

The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Grand Chain, IL

Average daylight in January / Average sunshine in January - Grand Chain, IL
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in January: 4h and 4min

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

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Average sunshine days in January
Grand Chain, IL

Average sunshine days in January - Grand Chain, IL
  • Average sunshine days in January: 21.4 days

The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is June (14.8 days).

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Average UV index in January
Grand Chain, IL

Average UV index in January - Grand Chain, IL
  • Average UV index in January: 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 January
Grand Chain, IL

Average cloud cover in January - Grand Chain, IL
  • Average cloud cover in January: 51

The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).

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Average visibility in January
Grand Chain, IL

Average visibility in January - Grand Chain, IL
  • Average visibility in January: 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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Grand Chain, Illinois, USA

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