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 is the coldest month of the year, registering average temperatures as high as 29.1°F (-1.6°C) and as low as 17.2°F (-8.2°C).Humidity
The average relative humidity in January in Marseilles is 83%.Rainfall
In Marseilles, in January, during 6.3 rainfall days, 1.81" (46mm) of precipitation is typically accumulated. Throughout the year, in Marseilles, Illinois, there are 154.1 rainfall days, and 31.73" (806mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Marseilles, during January, snow falls for 11.9 days and regularly aggregates up to 4.29" (109mm) of snow. In Marseilles, Illinois, during the entire year, snow falls for 39.8 days and aggregates up to 15.71" (399mm) of snow.Daylight
In Marseilles, the average length of the day in January is 9h and 36min.On the first day of January, sunrise is at 7:20 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:09 pm CST.
Sunshine
With an average of 3.9h of sunshine, January has the least sunshine of the year in Marseilles, Illinois.UV index
January is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In January, the UV index of 1 transforms into the following advice:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Frequently asked questions
What are the coldest months in Marseilles?
How cold is January in Marseilles?
What is the average humidity in January in Marseilles?
How many days does it rain in January in Marseilles?
How much does it snow in Marseilles in January?
How many hours of daylight does Marseilles have in January?
When are sunrise and sunset in January in Marseilles?
What is the month with the least sunshine in Marseilles?
How many hours of sunshine does Marseilles have in January?
What is the month with the lowest UV index in Marseilles?
How high is the UV index in January in Marseilles?
Average temperature in January
Marseilles, IL
- Average high temperature in January: 29.1°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.1°F).
- Average low temperature in January: 17.2°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).
Average pressure in January
Marseilles, IL
- Average pressure in January: 30.12"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Marseilles, IL
- Average wind speed in January: 10.1mph
The windiest months (with the highest average wind speed) are January and April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in January
Marseilles, IL
- Average humidity in January: 83%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in January
Marseilles, IL
- Average rainfall in January: 1.81"
The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is December (1.65").
Average rainfall days in January
Marseilles, IL
- Average rainfall days in January: 6.3 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in January
Marseilles, IL
- Average snowfall in January: 4.29"
The month with the highest snowfall is February (4.57").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Marseilles, IL
- Average snowfall days in January: 11.9 days
The month with the highest number of snowfall days is January (11.9 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
Marseilles, IL
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 3h and 5min
The months with the most sunshine are June and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in January
Marseilles, IL
- Average sunshine days in January: 14 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in January
Marseilles, IL
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in January
Marseilles, IL
- Average cloud cover in January: 59
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in January
Marseilles, 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).
Marseilles, Illinois, USA
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