January weather forecastMaryville, IL
January
Weather in January
January, like December, in Maryville, Illinois, is an icy winter month, with temperature in the range of an average low of 24.3°F (-4.3°C) and an average high of 37.4°F (3°C).Temperature
January, with its high-temperature average of 37.4°F (3°C) and a low-temperature average of 24.3°F (-4.3°C), is the coldest month.Humidity
In Maryville, the average relative humidity in January is 76%.Rainfall
In Maryville, in January, during 7.8 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. Throughout the year, in Maryville, there are 149.9 rainfall days, and 33.94" (862mm) of precipitation is accumulated.Snowfall
Months with snowfall in Maryville are January through March, September, November and December. The month with the most snowfall in Maryville is January, when snow falls for 7 days and typically aggregates up to 2.13" (54mm) of snow.Daylight
In January, the average length of the day is 9h and 49min.On the first day of January in Maryville, sunrise is at 7:17 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:19 pm CST.
Sunshine
With an average of 4.5h of sunshine, January has the least sunshine of the year in Maryville, Illinois.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 value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: A typical high UV index of 2 in January suggests the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Maryville, IL
- Average high temperature in January: 37.4°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in January: 24.3°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in January
Maryville, 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 (29.92"Hg).
Average wind speed in January
Maryville, IL
- Average wind speed in January: 9.5mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).
Average humidity in January
Maryville, IL
- Average humidity in January: 76%
The months with the highest relative humidity are May, July and August (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Maryville, IL
- Average rainfall in January: 2.2"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is February (1.77").
Average rainfall days in January
Maryville, IL
- Average rainfall days in January: 7.8 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in January
Maryville, IL
- Average snowfall in January: 2.13"
The month with the highest snowfall is January (2.13").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days in January
Maryville, IL
- Average snowfall days in January: 7 days
The month with the highest number of snowfall days is January (7 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Maryville, IL
- Average daylight in January: 9h and 48min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January: 4h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in January
Maryville, IL
- Average sunshine days in January: 17 days
The month with the most sunshine days is December (18.6 days).
The month with the least sunshine days is May (11.6 days).
Average UV index in January
Maryville, 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
Maryville, IL
- Average cloud cover in January: 51
The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in January
Maryville, 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).
