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, marked by an average high-temperature of 26.6°F (-3°C) and a low-temperature of 14.9°F (-9.5°C), is the coldest month.Humidity
The months with the highest humidity are January and February, with an average relative humidity of 85%.Rainfall
In Sunnyside, during January, the rain falls for 5.6 days and regularly aggregates up to 1.54" (39mm) of precipitation. Throughout the year, in Sunnyside, there are 152.4 rainfall days, and 28.07" (713mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall is January, when snow falls for 13.3 days and typically aggregates up to 5.16" (131mm) of snow.Daylight
The average length of the day in January is 9h and 30min.On the first day of the month, sunrise is at 7:22 am and sunset at 4:30 pm. On the last day of January, sunrise is at 7:07 am and sunset at 5:04 pm CST.
Sunshine
The month with the least sunshine in Sunnyside is January, with an average of 3.7h of sunshine.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.Note: A maximum UV index of 1 in January translates into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
How cold is January?
What is the most humid month?
What is the average humidity in January in Sunnyside?
How many days does it rain in January?
When does it snow the most?
How many days does it snow in January?
What is the average length of the day in January in Sunnyside?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January?
What are the months with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Sunnyside, IL
- Average high temperature in January: 26.6°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (26.6°F).
- Average low temperature in January: 14.9°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure in January
Sunnyside, IL
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Sunnyside, IL
- Average wind speed in January: 10mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in January
Sunnyside, IL
- Average humidity in January: 85%
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (76%).
Average rainfall in January
Sunnyside, IL
- Average rainfall in January: 1.54"
The wettest month (with the highest rainfall) is June (3.58").
The driest month (with the least rainfall) is December (1.34").
Average rainfall days in January
Sunnyside, IL
- Average rainfall days in January: 5.6 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (4.9 days).
Average snowfall in January
Sunnyside, IL
- Average snowfall in January: 5.16"
The month with the highest snowfall is January (5.16").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Sunnyside, IL
- Average snowfall days in January: 13.3 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Sunnyside, IL
- Average daylight in January: 9h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January: 3h and 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in January
Sunnyside, IL
- Average sunshine days in January: 13.7 days
The month with the most sunshine days is November (16 days).
The month with the least sunshine days is June (10.2 days).
Average UV index in January
Sunnyside, IL
- Average UV index in January: 1
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Sunnyside, IL
- Average cloud cover in January: 62
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in January
Sunnyside, IL
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Sunnyside, Illinois, USA
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