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, with its average high-temperature of 29.7°F (-1.3°C) and an average low-temperature of 17.8°F (-7.9°C), holds the record as the coldest month.Humidity
The average relative humidity in January is 82%.Rainfall
The month with the least rainfall is January, when the rain falls for 4.2 days and typically collects 0.59" (15mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. The month with the most snowfall is January, when snow falls for 8.6 days and typically aggregates up to 1.81" (46mm) of snow.Daylight
In January, the average length of the day is 9h and 38min.On the first day of January, sunrise is at 7:23 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:14 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 3.9h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index, 1 during January, leads to the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
How cold is it in January?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January?
When does it snow the most?
How much does it snow in January?
How many hours of daylight does Dunlap have in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Dunlap have in January?
When is the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Dunlap, IL
- Average high temperature in January: 29.7°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in January: 17.8°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in January
Dunlap, IL
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Dunlap, IL
- Average wind speed in January: 10.5mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in January
Dunlap, IL
- Average humidity in January: 82%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in January
Dunlap, IL
- Average rainfall in January: 0.59"
The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in January
Dunlap, IL
- Average rainfall days in January: 4.2 days
The month with the highest number of rainy days is May (15.2 days).
The months with the least rainy days are January and February (4.2 days).
Average snowfall in January
Dunlap, IL
- Average snowfall in January: 1.81"
The month with the highest snowfall is January (1.81").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Dunlap, IL
- Average snowfall days in January: 8.6 days
The month with the highest number of snowfall days is January (8.6 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
Dunlap, 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 July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in January
Dunlap, IL
- Average sunshine days in January: 19.8 days
The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in January
Dunlap, IL
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Dunlap, IL
- Average cloud cover in January: 58
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in January
Dunlap, IL
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Dunlap, Illinois, USA
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