January weather forecastDorsey, IL
January
Weather in January
January, the same as December, is a wintry winter month in Dorsey, Illinois, with an average temperature varying between 23°F (-5°C) and 36°F (2.2°C).Temperature
Dorsey's coldest weather arrives in January, when temperatures average a high of 36°F (2.2°C) and a low of 23°F (-5°C).Humidity
In January, the average relative humidity is 77%.Rainfall
In Dorsey, during January, the rain falls for 5.3 days and regularly aggregates up to 0.71" (18mm) of precipitation. In Dorsey, during the entire year, the rain falls for 115.4 days and collects up to 13.23" (336mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. The month with the most snowfall is January, when snow falls for 5.1 days and typically aggregates up to 0.87" (22mm) of snow.Daylight
In January, the average length of the day is 9h and 48min.On the first day of the month, sunrise is at 7:18 am and sunset at 4:48 pm. On the last day of January, in Dorsey, sunrise is at 7:07 am and sunset at 5:19 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 4.4h 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 minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily maximum UV index of 2 in January translates into the following instructions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Dorsey, IL
- Average high temperature in January: 36°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in January: 23°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (23°F).
Average pressure in January
Dorsey, IL
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Dorsey, IL
- Average wind speed in January: 9.9mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in January
Dorsey, IL
- Average humidity in January: 77%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Dorsey, IL
- Average rainfall in January: 0.71"
The wettest month (with the highest rainfall) is August (1.77").
The driest month (with the least rainfall) is February (0.55").
Average rainfall days in January
Dorsey, IL
- Average rainfall days in January: 5.3 days
The months with the highest number of rainy days are May and July (13.8 days).
The month with the least rainy days is December (5.1 days).
Average snowfall in January
Dorsey, IL
- Average snowfall in January: 0.87"
The month with the highest snowfall is January (0.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Dorsey, IL
- Average snowfall days in January: 5.1 days
The month with the highest number of snowfall days is January (5.1 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
Dorsey, IL
- Average daylight in January: 9h and 48min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January: 4h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in January
Dorsey, IL
- Average sunshine days in January: 22.4 days
The month with the most sunshine days is December (22.5 days).
The month with the least sunshine days is June (13.8 days).
Average UV index in January
Dorsey, IL
- Average UV index in January: 2
The months with the highest UV index are 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
Dorsey, IL
- Average cloud cover in January: 53
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June and August (Cloud cover 29).
Average visibility in January
Dorsey, 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).





