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
During the coldest month, January, temperatures average a high of 30.7°F (-0.7°C) and a low of 18.7°F (-7.4°C).Humidity
The average relative humidity in January is 81%.Rainfall
The months with the least rainfall in Onarga are January, February and December Rain falls for 5.5 days and accumulates 0.91" (23mm) of rain.Snowfall
January through April, November and December are months with snowfall. In January, it is snowing for 9.6 days. Throughout January, 2.09" (53mm) of snow is accumulated. In Onarga, Illinois, during the entire year, snow falls for 30.7 days and aggregates up to 8.19" (208mm) of snow.Daylight
In January, the average length of the day is 9h and 39min.On the first day of January, sunrise is at 7:15 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 5:07 pm CST.
Sunshine
With an average of 3.8h of sunshine, January has the least sunshine of the year.UV index
The average daily maximum UV index in January in Onarga is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: During January, 2 as the daily maximum UV index converts into the following advice:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. When the Sun is at its strongest around midday, find shade and limit exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Onarga?
How cold is January in Onarga?
What is the average humidity in January in Onarga?
What is the driest month in Onarga?
How many days does it rain in January in Onarga?
How much does it snow in Onarga in January?
How many hours of daylight does Onarga have in January?
When are sunrise and sunset in January in Onarga?
What is the month with the least sunshine in Onarga?
How many hours of sunshine does Onarga have in January?
What is the UV index intensity in January in Onarga?
Average temperature in January
Onarga, IL
- Average high temperature in January: 30.7°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in January: 18.7°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in January
Onarga, IL
- Average pressure in January: 30.13"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Onarga, IL
- Average wind speed in January: 10.4mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in January
Onarga, IL
- Average humidity in January: 81%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Onarga, IL
- Average rainfall in January: 0.91"
The wettest month (with the highest rainfall) is May (2.44").
The driest months (with the least rainfall) are January, February and December (0.91").
Average rainfall days in January
Onarga, IL
- Average rainfall days in January: 5.5 days
The month with the highest number of rainy days is May (17.3 days).
The months with the least rainy days are January and February (5.5 days).
Average snowfall in January
Onarga, IL
- Average snowfall in January: 2.09"
The month with the highest snowfall is February (2.24").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Onarga, IL
- Average snowfall days in January: 9.6 days
The month with the highest number of snowfall days is January (9.6 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
Onarga, IL
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 3h and 5min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in January
Onarga, IL
- Average sunshine days in January: 17.5 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in January
Onarga, 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
Onarga, IL
- Average cloud cover in January: 59
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility in January
Onarga, 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).
Onarga, Illinois, USA
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