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 period tends to be January, when average temperatures fluctuate between a high of 29.5°F (-1.4°C) and a low of 17.4°F (-8.1°C).Humidity
The average relative humidity in January in Galesburg is 82%.Rainfall
January and December are months with the least rain when the rain falls for 4 days and typically aggregates up to 0.47" (12mm) of rain.Snowfall
January through April, October through December are months with snowfall in Galesburg. January is the month with the most snowfall in Galesburg. Snow falls for 8.8 days and accumulates 1.38" (35mm) of snow.Daylight
In Galesburg, Illinois, the average length of the day in January is 9h and 38min.On the first day of the month, sunrise is at 7:26 am and sunset at 4:43 pm. On the last day of January, in Galesburg, sunrise is at 7:12 am and sunset at 5:16 pm CST.
Sunshine
With an average of 4h of sunshine, January has the least sunshine of the year.UV index
The average daily maximum UV index in January in Galesburg, Illinois, is 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: An average maximum UV index of 2 in January leads to these recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Galesburg?
How cold is January in Galesburg?
What is the average humidity in January in Galesburg?
What is the driest month in Galesburg?
How many days does it rain in January in Galesburg?
When does it snow the most in Galesburg?
How much does it snow in Galesburg in January?
What is the average length of the day in January in Galesburg?
What time are sunrise and sunset in January in Galesburg?
What is the month with the least sunshine in Galesburg?
How long on average sun shines in January in Galesburg?
What is the UV index reading in January in Galesburg?
Average temperature in January
Galesburg, IL
- Average high temperature in January: 29.5°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 (29.5°F).
- Average low temperature in January: 17.4°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in January
Galesburg, 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
Galesburg, IL
- Average wind speed in January: 10.6mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in January
Galesburg, 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
Galesburg, IL
- Average rainfall in January: 0.47"
The wettest month (with the highest rainfall) is May (1.65").
The driest months (with the least rainfall) are January and December (0.47").
Average rainfall days in January
Galesburg, IL
- Average rainfall days in January: 4 days
The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in January
Galesburg, IL
- Average snowfall in January: 1.38"
The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Galesburg, IL
- Average snowfall days in January: 8.8 days
The month with the highest number of snowfall days is January (8.8 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
Galesburg, 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: 4h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in January
Galesburg, IL
- Average sunshine days in January: 20 days
The month with the most sunshine days is December (21.6 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in January
Galesburg, IL
- Average UV index in January: 2
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Galesburg, 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
Galesburg, IL
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Galesburg, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location