January weather forecast
Gillum, IL

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Weather in January

January, like December, is a freezing cold winter month in Gillum, Illinois, with an average temperature varying between 18.9°F (-7.3°C) and 30.7°F (-0.7°C).

Temperature

Gillum witnesses the coldest weather in January, with temperatures averaging a high of 30.7°F (-0.7°C) and a low of 18.9°F (-7.3°C).

Humidity

The average relative humidity in January is 81%.

Rainfall

In Gillum, during January, the rain falls for 7.2 days and regularly aggregates up to 1.97" (50mm) of precipitation. In Gillum, during the entire year, the rain falls for 163.1 days and collects up to 33.62" (854mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. The month with the most snowfall is January, when snow falls for 12.8 days and typically aggregates up to 5.04" (128mm) of snow.

Daylight

The average length of the day in January is 9h and 41min.
On the first day of the month, sunrise is at 7:18 am and sunset at 4:39 pm. On the last day of January, sunrise is at 7:05 am and sunset at 5:12 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 3.7h of sunshine.

UV index

The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In January, an average UV index of 2 transforms into the following instructions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in Gillum?

In Gillum, the lowest temperatures are generally noted in January, averaging a high of 30.7°F (-0.7°C) and a low of 18.9°F (-7.3°C).

How cold is it in January?

The high-temperature during January is 30.7°F (-0.7°C) and the low-temperature is 18.9°F (-7.3°C).

What is the average humidity in January?

In Gillum, the average relative humidity in January is 81%.

How many days does it rain in January?

In Gillum, during January, the rain falls for 7.2 days and regularly aggregates up to 1.97" (50mm) of precipitation.

What is the snowiest month?

The month with the most snowfall is January, when snow falls for 12.8 days and typically aggregates up to 5.04" (128mm) of snow.

How much does it snow in January?

In Gillum, in January, snow falls for 12.8 days, with typically accumulated 5.04" (128mm) of snow.

How many hours of daylight does Gillum have in January?

In Gillum, the average day length in January is 9h and 41min.

What time are sunrise and sunset in January in Gillum?

In January, on the first day of the month, sunrise is at 7:18 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:12 pm CST.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 3.7h of sunshine.

How many hours of sunshine does Gillum have in January?

In January, the average sunshine duration is 3.7h.

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

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

What is the UV index intensity in January?

The average daily maximum UV index in January in Gillum, Illinois, is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from 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
Gillum, IL

Average temperature in January - Gillum, IL
  • Average high temperature in January: 30.7°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 (30.7°F).

  • Average low temperature in January: 18.9°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in January
Gillum, IL

Average pressure in January - Gillum, IL
  • Average pressure in January: 30.14"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in January
Gillum, IL

Average wind speed in January - Gillum, IL
  • Average wind speed in January: 11.1mph

The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in January
Gillum, IL

Average humidity in January - Gillum, IL
  • Average humidity in January: 81%

The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is October (71%).

Average rainfall in January
Gillum, IL

Average rainfall in January - Gillum, IL
  • Average rainfall in January: 1.97"

The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is December (1.93").

Average rainfall days in January
Gillum, IL

Average rainfall days in January - Gillum, IL
  • Average rainfall days in January: 7.2 days

The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is February (6.9 days).

Average snowfall in January
Gillum, IL

Average snowfall in January - Gillum, IL
  • Average snowfall in January: 5.04"

The month with the highest snowfall is January (5.04").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Gillum, IL

Average snowfall days in January - Gillum, IL
  • Average snowfall days in January: 12.8 days

The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in January: 3h and 4min

The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in January
Gillum, IL

Average sunshine days in January - Gillum, IL
  • Average sunshine days in January: 13 days

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is May (8.4 days).

Average UV index in January
Gillum, IL

Average UV index in January - Gillum, IL
  • Average UV index in January: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

Average cloud cover in January
Gillum, IL

Average cloud cover in January - Gillum, IL
  • Average cloud cover in January: 60

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 33).

Average visibility in January
Gillum, IL

Average visibility in January - Gillum, 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).

Gillum, Illinois, USA

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