January weather forecastMarion, IL
January
Weather in January
January in Marion, Illinois, is characterized by chilly temperatures and the possibility of both rain and snow. The month begins the year on a cold note with high temperatures averaging 39.6°F (4.2°C) and lows hitting an average of 26.1°F (-3.3°C). Periods of rainfall and days with snowfall are almost equal, shadowing the city with typically overcast skies. Meanwhile, winds blow at a moderate speed, making the air feel cooler than usual. As a transition into the next month, February presents slightly warmer conditions while keeping the wintry ambiance.Temperature
Marion experiences its lowest temperatures in January, with an average peak of 39.6°F (4.2°C) and a low of 26.1°F (-3.3°C).Humidity
In Marion, the average relative humidity in January is 76%.Rainfall
In Marion, during January, the rain falls for 8.8 days and regularly aggregates up to 1.42" (36mm) of precipitation. In Marion, during the entire year, the rain falls for 137.6 days and collects up to 23.03" (585mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. The months with the most snowfall are January and February, with an average 0.94" (24mm) of accumulated snow.Daylight
In January, the average length of the day is 9h and 55min.On the first day of the month, sunrise is at 7:10 am and sunset at 4:47 pm. On the last day of January, sunrise is at 7:00 am and sunset at 5:17 pm CST.
Sunshine
With an average of 4.6h of sunshine, January has the least sunshine of the year.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 2 during January translates into these guidelines:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Marion, 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: 26.1°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in January
Marion, 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 (29.94"Hg).
Average wind speed in January
Marion, IL
- Average wind speed in January: 9.4mph
The windiest months (with the highest average wind speed) are January and February (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in January
Marion, 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
Marion, IL
- Average rainfall in January: 1.42"
The wettest month (with the highest rainfall) is April (3.11").
The driest month (with the least rainfall) is September (1.1").
Average rainfall days in January
Marion, IL
- Average rainfall days in January: 8.8 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in January
Marion, IL
- Average snowfall in January: 0.94"
The months with the highest snowfall are January and February (0.94").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Marion, IL
- Average snowfall days in January: 4.1 days
The month with the highest number of snowfall days is February (4.3 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
Marion, IL
- Average daylight in January: 9h and 54min
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 36min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in January
Marion, IL
- Average sunshine days in January: 18.1 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is July (12.9 days).
Average UV index in January
Marion, 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 and December (UV index 2).
Average cloud cover in January
Marion, IL
- Average cloud cover in January: 50
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June, August and September (Cloud cover 28).
Average visibility in January
Marion, 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).
