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 is the coldest month, exhibiting average temperatures of 31.6°F (-0.2°C) at the peak and 20.5°F (-6.4°C) at the base.Humidity
In Ryan, the average relative humidity in January is 81%.Rainfall
In January, the rain falls for 7.3 days. Throughout January, 1.61" (41mm) of precipitation is accumulated. Throughout the year, in Ryan, there are 151.8 rainfall days, and 25.63" (651mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Ryan, Illinois, during January, snow falls for 10.6 days and regularly aggregates up to 2.28" (58mm) of snow. In Ryan, during the entire year, snow falls for 35.2 days and aggregates up to 8.82" (224mm) of snow.Daylight
In January, the average length of the day is 9h and 43min.On the first day of the month, sunrise is at 7:13 am and sunset at 4:36 pm. On the last day of January, sunrise is at 7:00 am and sunset at 5:08 pm CST.
Sunshine
With an average of 4h of sunshine, January has the least sunshine of the year in Ryan.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 estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.Note: In January, the average maximum UV index of 2 translates into the following recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Ryan?
How cold is January in Ryan?
What is the average humidity in January in Ryan?
How many days does it rain in January in Ryan?
How much does it snow in Ryan in January?
How many hours of daylight does Ryan have in January?
When are sunrise and sunset in January in Ryan?
What is the month with the least sunshine in Ryan?
How long on average sun shines in January in Ryan?
When is the lowest UV index in Ryan?
What is the UV index reading in January in Ryan?
Average temperature in January
Ryan, IL
- Average high temperature in January: 31.6°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in January: 20.5°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 (20.5°F).
Average pressure in January
Ryan, 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 (29.93"Hg).
Average wind speed in January
Ryan, 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 (6.2mph).
Average humidity in January
Ryan, IL
- Average humidity in January: 81%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in January
Ryan, IL
- Average rainfall in January: 1.61"
The wettest month (with the highest rainfall) is April (3.23").
The driest months (with the least rainfall) are February and September (1.38").
Average rainfall days in January
Ryan, IL
- Average rainfall days in January: 7.3 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (6.6 days).
Average snowfall in January
Ryan, IL
- Average snowfall in January: 2.28"
The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Ryan, IL
- Average snowfall days in January: 10.6 days
The month with the highest number of snowfall days is January (10.6 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
Ryan, 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 24min).
- 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
Ryan, IL
- Average sunshine days in January: 15 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (9.5 days).
Average UV index in January
Ryan, 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
Ryan, IL
- Average cloud cover in January: 58
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are June, August and September (Cloud cover 32).
Average visibility in January
Ryan, 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).
Ryan, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location