January weather forecastMarseilles, IL
January
Weather in January
January, like December, is a freezing cold winter month in Marseilles, Illinois, with an average temperature varying between 29.1°F (-1.6°C) and 17.2°F (-8.2°C).Temperature
In Marseilles, the month of January is known for its lowest average temperatures, reaching a high of 29.1°F (-1.6°C) and a low of 17.2°F (-8.2°C).Humidity
In January, the average relative humidity is 83%.Rainfall
In Marseilles, in January, it is raining for 6.3 days, with typically 1.81" (46mm) of accumulated precipitation. In Marseilles, during the entire year, the rain falls for 154.1 days and collects up to 31.73" (806mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In January, it is snowing for 11.9 days. Throughout January, 4.29" (109mm) of snow is accumulated. In Marseilles, during the entire year, snow falls for 39.8 days and aggregates up to 15.71" (399mm) of snow.Daylight
In Marseilles, Illinois, the average length of the day in January is 9h and 36min.On the first day of the month, sunrise is at 7:20 am and sunset at 4:35 pm. On the last day of January, sunrise is at 7:07 am and sunset at 5:09 pm CST.
Sunshine
The month with the least sunshine in Marseilles is January, with an average of 3.9h of sunshine.UV index
With an average maximum UV index of 1, January is the month with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In January, the average maximum UV index of 1 translates into the following recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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 36min
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 54min
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).
