January weather forecast
Glenarm, IL

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Weather in January

January, the same as December, is an icy winter month in Glenarm, Illinois, with temperature in the range of an average low of 21.4°F (-5.9°C) and an average high of 33.6°F (0.9°C).

Temperature

January is Glenarm's coldest month, registering average high temperatures of 33.6°F (0.9°C) and lows of 21.4°F (-5.9°C).

Humidity

In Glenarm, the average relative humidity in January is 79%.

Rainfall

In Glenarm, Illinois, in January, during 4.4 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. In Glenarm, during the entire year, the rain falls for 104.2 days and collects up to 9.29" (236mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Glenarm. In Glenarm, in January, snow falls for 5.7 days, with typically accumulated 0.63" (16mm) of snow. Throughout the year, there are 18.6 snowfall days, and 2.68" (68mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 45min.
On the first day of the month, sunrise is at 7:19 am and sunset at 4:44 pm. On the last day of January, in Glenarm, Illinois, sunrise is at 7:07 am and sunset at 5:16 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 4.2h of sunshine.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A typical high UV index of 2 in January suggests the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months in Glenarm?

January is the month when Glenarm sees the average lowest temperatures, with a high of 33.6°F (0.9°C) and a low of 21.4°F (-5.9°C).

How cold is it in Glenarm in January?

January temperatures vary between a high-temperature of 33.6°F (0.9°C) and a low-temperature of 21.4°F (-5.9°C).

What is the average humidity in January in Glenarm?

In Glenarm, the average relative humidity in January is 79%.

How many days does it rain in January in Glenarm?

In Glenarm, in January, it is raining for 4.4 days, with typically 0.63" (16mm) of accumulated precipitation.

How much does it snow in Glenarm in January?

In Glenarm, during January, snow falls for 5.7 days and regularly aggregates up to 0.63" (16mm) of snow.

How many hours of daylight does Glenarm have in January?

The average day length in January in Glenarm is 9h and 45min.

When are sunrise and sunset in January in Glenarm?

In January, on the first day of the month, sunrise is at 7:19 am and sunset at 4:44 pm. On the last day of the month, in Glenarm, Illinois, sunrise is at 7:07 am and sunset at 5:16 pm CST.

What is the month with the least sunshine in Glenarm?

The month with the least sunshine is January, with an average of 4.2h of sunshine.

How many hours of sunshine does Glenarm have in January?

In Glenarm, the average sunshine duration in January is 4.2h.

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

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

What is the UV index intensity in January in Glenarm?

In January, the average daily maximum UV index in Glenarm is 2. A UV Index value of 2, and less, symbolizes a low health risk 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
Glenarm, IL

Average temperature in January - Glenarm, IL
  • Average high temperature in January: 33.6°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.6°F).

  • Average low temperature in January: 21.4°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).

Average pressure in January
Glenarm, IL

Average pressure in January - Glenarm, IL
  • Average pressure in January: 30.15"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in January
Glenarm, IL

Average wind speed in January - Glenarm, 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 July (6.1mph).

Average humidity in January
Glenarm, IL

Average humidity in January - Glenarm, IL
  • Average humidity in January: 79%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).

Average rainfall in January
Glenarm, IL

Average rainfall in January - Glenarm, IL
  • Average rainfall in January: 0.63"

The wettest month (with the highest rainfall) is June (1.22").
The driest month (with the least rainfall) is December (0.43").

Average rainfall days in January
Glenarm, IL

Average rainfall days in January - Glenarm, IL
  • Average rainfall days in January: 4.4 days

The month with the highest number of rainy days is May (12.5 days).
The month with the least rainy days is January (4.4 days).

Average snowfall in January
Glenarm, IL

Average snowfall in January - Glenarm, IL
  • Average snowfall in January: 0.63"

The month with the highest snowfall is February (0.91").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Glenarm, IL

Average snowfall days in January - Glenarm, IL
  • Average snowfall days in January: 5.7 days

The month with the highest number of snowfall days is January (5.7 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
Glenarm, IL

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in January: 4h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in January
Glenarm, IL

Average sunshine days in January - Glenarm, IL
  • Average sunshine days in January: 22.2 days

The month with the most sunshine days is December (22.6 days).
The month with the least sunshine days is June (14 days).

Average UV index in January
Glenarm, IL

Average UV index in January - Glenarm, 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, November and December (UV index 2).

Average cloud cover in January
Glenarm, IL

Average cloud cover in January - Glenarm, IL
  • Average cloud cover in January: 54

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are June and September (Cloud cover 29).

Average visibility in January
Glenarm, IL

Average visibility in January - Glenarm, IL
  • Average visibility in January: 6mi

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

Glenarm, Illinois, USA

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