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
The coldest temperatures occur during January, when averages reach a peak of 38.8°F (3.8°C) and a low of 25.7°F (-3.5°C).Humidity
In January, the average relative humidity is 76%.Rainfall
January is the month with the least rainfall. Rain falls for 8.4 days and accumulates 1.5" (38mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Vergennes, Illinois, in January, snow falls for 5.4 days, with typically accumulated 1.18" (30mm) of snow. Throughout the year, there are 18 snowfall days, and 4.53" (115mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 53min.On the first day of January, sunrise is at 7:12 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 5:19 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 4.6h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: A maximum UV index of 2 in January translates into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
How cold is it in January?
What is the average humidity in January?
What is the driest month?
How much does it rain in January?
How much does it snow in January?
How many hours of daylight does Vergennes have in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Vergennes have in January?
When is the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Vergennes, IL
- Average high temperature in January: 38.8°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in January: 25.7°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in January
Vergennes, 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 (29.93"Hg).
Average wind speed in January
Vergennes, IL
- Average wind speed in January: 9.6mph
The windiest months (with the highest average wind speed) are January and February (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in January
Vergennes, 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
Vergennes, IL
- Average rainfall in January: 1.5"
The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is January (1.5").
Average rainfall days in January
Vergennes, IL
- Average rainfall days in January: 8.4 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is December (8.2 days).
Average snowfall in January
Vergennes, IL
- Average snowfall in January: 1.18"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Vergennes, IL
- Average snowfall days in January: 5.4 days
The month with the highest number of snowfall days is January (5.4 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
Vergennes, IL
- Average daylight in January: 9h and 5min
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 36min).
- Average sunshine in January: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in January
Vergennes, IL
- Average sunshine days in January: 18.1 days
The months with the most sunshine days are October and November (19.5 days).
The month with the least sunshine days is May (11.4 days).
Average UV index in January
Vergennes, 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
Vergennes, IL
- Average cloud cover in January: 50
The months with the most cloud cover are January and February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in January
Vergennes, 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).
Vergennes, Illinois, USA
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