January weather forecast
Grandwood Park, IL

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Weather in January

January, the same as December, in Grandwood Park, Illinois, is a freezing cold winter month, with an average temperature fluctuating between 27.5°F (-2.5°C) and 16.5°F (-8.6°C).

Temperature

The coldest period tends to be January, when average temperatures fluctuate between a high of 27.5°F (-2.5°C) and a low of 16.5°F (-8.6°C).

Humidity

January and February, with an average relative humidity of 83%, are the most humid months.

Rainfall

In Grandwood Park, in January, it is raining for 5.4 days, with typically 1.14" (29mm) of accumulated precipitation. Throughout the year, there are 142.3 rainfall days, and 21.97" (558mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Grandwood Park. January is the month with the most snowfall in Grandwood Park. Snow falls for 13.7 days and accumulates 3.58" (91mm) of snow.

Daylight

In Grandwood Park, the average length of the day in January is 9h and 30min.
On the first day of January, sunrise is at 7:21 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:03 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 3.7h 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 estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In January, an average UV index of 1 transforms into the following instructions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
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Frequently asked questions

What month is the coldest in Grandwood Park?

January, known for its average high temperature of 27.5°F (-2.5°C) and an average low temperature of 16.5°F (-8.6°C), is the coldest month in Grandwood Park.

How cold is January in Grandwood Park?

The average high-temperature and low-temperature in Grandwood Park, Illinois, during January are 27.5°F (-2.5°C) and 16.5°F (-8.6°C) respectively.

What are the most humid months in Grandwood Park?

January and February, with an average relative humidity of 83%, are most humid months in Grandwood Park.

What is the average humidity in January in Grandwood Park?

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

How many days does it rain in January in Grandwood Park?

In Grandwood Park, during January, the rain falls for 5.4 days and regularly aggregates up to 1.14" (29mm) of precipitation.

What is the snowiest month in Grandwood Park?

January is the month with the most snowfall. Snow falls for 13.7 days and accumulates 3.58" (91mm) of snow.

How much does it snow in Grandwood Park in January?

In January, in Grandwood Park, it is snowing for 13.7 days. Throughout January, 3.58" (91mm) of snow is accumulated.

What is the average length of the day in January in Grandwood Park?

In Grandwood Park, Illinois, the average day length in January is 9h and 30min.

When are sunrise and sunset in January in Grandwood Park?

On the first day of January in Grandwood Park, Illinois, sunrise is at 7:21 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:03 pm CST.

What is the month with the least sunshine in Grandwood Park?

With an average of 3.7h of sunshine, January has the least sunshine of the year in Grandwood Park.

How long on average sun shines in January in Grandwood Park?

The average sunshine duration in January in Grandwood Park is 3.7h.

When is the lowest UV index in Grandwood Park?

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

What is the UV index reading in January in Grandwood Park?

In January, the average daily maximum UV index is 1. A UV Index of 2, and less, symbolizes a minimal hazard to health 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 January
Grandwood Park, IL

Average temperature in January - Grandwood Park, IL
  • Average high temperature in January: 27.5°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (27.5°F).

  • Average low temperature in January: 16.5°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 (16.5°F).

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Average pressure in January
Grandwood Park, IL

Average pressure in January - Grandwood Park, IL
  • Average pressure in January: 30.1"Hg

The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in January
Grandwood Park, IL

Average wind speed in January - Grandwood Park, IL
  • Average wind speed in January: 10.4mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

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Average humidity in January
Grandwood Park, IL

Average humidity in January - Grandwood Park, IL
  • Average humidity in January: 83%

The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in January
Grandwood Park, IL

Average rainfall in January - Grandwood Park, IL
  • Average rainfall in January: 1.14"

The wettest month (with the highest rainfall) is April (2.72").
The driest month (with the least rainfall) is December (0.98").

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Average rainfall days in January
Grandwood Park, IL

Average rainfall days in January - Grandwood Park, IL
  • Average rainfall days in January: 5.4 days

The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is February (5 days).

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Average snowfall in January
Grandwood Park, IL

Average snowfall in January - Grandwood Park, IL
  • Average snowfall in January: 3.58"

The month with the highest snowfall is January (3.58").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Grandwood Park, IL

Average snowfall days in January - Grandwood Park, IL
  • Average snowfall days in January: 13.7 days

The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Grandwood Park, IL

Average daylight in January / Average sunshine in January - Grandwood Park, IL
  • Average daylight in January: 9h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in January: 3h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in January
Grandwood Park, IL

Average sunshine days in January - Grandwood Park, IL
  • Average sunshine days in January: 13.7 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is May (10.8 days).

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Average UV index in January
Grandwood Park, IL

Average UV index in January - Grandwood Park, IL
  • Average UV index in January: 1

The months with the highest UV index are 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
Grandwood Park, IL

Average cloud cover in January - Grandwood Park, IL
  • Average cloud cover in January: 61

The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July, August and September (Cloud cover 30).

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Average visibility in January
Grandwood Park, IL

Average visibility in January - Grandwood Park, IL
  • Average visibility in January: 5mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

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Grandwood Park, Illinois, USA

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