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
Roscoe's January weather reaches an average high of 25.5°F (-3.6°C) and an average low of 13.5°F (-10.3°C), making it the coldest month.Humidity
The most humid month is January, with an average relative humidity of 86%.Rainfall
In Roscoe, in January, it is raining for 3.8 days, with typically 0.59" (15mm) of accumulated precipitation. Throughout the year, there are 123.8 rainfall days, and 14.49" (368mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Roscoe. January is the month with the most snowfall. Snow falls for 10.3 days and accumulates 1.93" (49mm) 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 7:25 am and sunset at 4:33 pm. On the last day of January, sunrise is at 7:10 am and sunset at 5:08 pm CST.
Sunshine
The months with the least sunshine are January and February, with an average of 3.6h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In January, the maximum UV index of 1 suggests this advice:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
How cold is it in Roscoe in January?
What is the most humid month?
What is the average humidity in January?
How many days does it rain in January?
What is the snowiest month?
How many days does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
What are the months with the least sunshine?
How many hours of sunshine does Roscoe have in January?
When is the lowest UV index?
How high is the UV index in January?
Average temperature in January
Roscoe, IL
- Average high temperature in January: 25.5°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in January: 13.5°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in January
Roscoe, IL
- Average pressure in January: 30.11"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Roscoe, IL
- Average wind speed in January: 9.6mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in January
Roscoe, IL
- Average humidity in January: 86%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (75%).
Average rainfall in January
Roscoe, IL
- Average rainfall in January: 0.59"
The wettest month (with the highest rainfall) is June (2.2").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in January
Roscoe, IL
- Average rainfall days in January: 3.8 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (3.8 days).
Average snowfall in January
Roscoe, IL
- Average snowfall in January: 1.93"
The month with the highest snowfall is January (1.93").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Roscoe, IL
- Average snowfall days in January: 10.3 days
The month with the highest number of snowfall days is January (10.3 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
Roscoe, 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 month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and February (Average sunshine: 3h and 36min).
Average sunshine days in January
Roscoe, IL
- Average sunshine days in January: 17.8 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in January
Roscoe, IL
- Average UV index in January: 1
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Roscoe, IL
- Average cloud cover in January: 63
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility in January
Roscoe, IL
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Roscoe, Illinois, USA
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