Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January, characterized by an average high temperature of 39.6°F (4.2°C) and a low temperature of 26.2°F (-3.2°C), is generally the coldest month.Humidity
The average relative humidity in January in Grand Tower is 76%.Rainfall
In Grand Tower, in January, it is raining for 9.4 days, with typically 2.17" (55mm) of accumulated precipitation. Throughout the year, in Grand Tower, there are 158.6 rainfall days, and 34.69" (881mm) of precipitation is accumulated.Snowfall
Months with snowfall in Grand Tower, Illinois, are January through April, October through December. In Grand Tower, in January, during 4.8 snowfall days, 1.22" (31mm) of snow is typically accumulated. Throughout the year, there are 15.9 snowfall days, and 5.71" (145mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 55min.On the first day of January in Grand Tower, Illinois, sunrise is at 7:12 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 5:20 pm CST.
Sunshine
January has the least sunshine of the year in Grand Tower, with an average of 4.7h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: In January, the UV index of 2 transforms into the following advice:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Grand Tower?
How cold is January in Grand Tower?
What is the average humidity in January in Grand Tower?
How much does it rain in Grand Tower in January?
How much does it snow in Grand Tower in January?
What is the average length of the day in January in Grand Tower?
When are sunrise and sunset in January in Grand Tower?
What is the month with the least sunshine in Grand Tower?
How many hours of sunshine does Grand Tower have in January?
What are the months with the lowest UV index in Grand Tower?
What is the UV index reading in January in Grand Tower?
Average temperature in January
Grand Tower, IL
- Average high temperature in January: 39.6°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.6°F).
- Average low temperature in January: 26.2°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in January
Grand Tower, 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 (29.93"Hg).
Average wind speed in January
Grand Tower, IL
- Average wind speed in January: 9.4mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in January
Grand Tower, IL
- Average humidity in January: 76%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Grand Tower, IL
- Average rainfall in January: 2.17"
The wettest month (with the highest rainfall) is April (4.49").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in January
Grand Tower, IL
- Average rainfall days in January: 9.4 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in January
Grand Tower, IL
- Average snowfall in January: 1.22"
The month with the highest snowfall is February (1.73").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Grand Tower, IL
- Average snowfall days in January: 4.8 days
The months with the highest number of snowfall days are January and February (4.8 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
Grand Tower, 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 month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in January
Grand Tower, IL
- Average sunshine days in January: 17.7 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in January
Grand Tower, 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, November and December (UV index 2).
Average cloud cover in January
Grand Tower, IL
- Average cloud cover in January: 49
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 27).
Average visibility in January
Grand Tower, 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).
Grand Tower, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location