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
Royalton's temperature records reveal January as the coldest month, marked by average highs of 39.6°F (4.2°C) and lows of 26.2°F (-3.2°C).Humidity
In Royalton, the average relative humidity in January is 76%.Rainfall
In Royalton, in January, during 9.4 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. Throughout the year, in Royalton, there are 158.6 rainfall days, and 34.69" (881mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Royalton, in January, snow falls for 4.8 days, with typically accumulated 1.22" (31mm) of snow. In Royalton, during the entire year, snow falls for 15.9 days and aggregates up to 5.71" (145mm) of snow.Daylight
In Royalton, the average length of the day in January is 9h and 53min.On the first day of the month, sunrise is at 7:12 am and sunset at 4:47 pm. On the last day of January, sunrise is at 7:01 am and sunset at 5:18 pm CST.
Sunshine
The month with the least sunshine in Royalton, Illinois, is January, with an average of 4.7h of sunshine.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 threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Royalton?
How cold is January in Royalton?
What is the average humidity in January in Royalton?
How many days does it rain in January in Royalton?
How much does it snow in Royalton in January?
What is the average length of the day in January in Royalton?
When is the sunrise / sunset in January in Royalton?
What is the month with the least sunshine in Royalton?
How long on average sun shines in January in Royalton?
What is the month with the lowest UV index in Royalton?
How high is the UV index in January in Royalton?
Average temperature in January
Royalton, IL
- Average high temperature in January: 39.6°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.6°F).
- Average low temperature in January: 26.2°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in January
Royalton, IL
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Royalton, IL
- Average wind speed in January: 9.4mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in January
Royalton, IL
- Average humidity in January: 76%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Royalton, IL
- Average rainfall in January: 2.17"
The wettest month (with the highest rainfall) is April (4.49").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in January
Royalton, IL
- Average rainfall days in January: 9.4 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in January
Royalton, IL
- Average snowfall in January: 1.22"
The month with the highest snowfall is February (1.73").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Royalton, IL
- Average snowfall days in January: 4.8 days
The months with the highest number of snowfall days are January and February (4.8 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
Royalton, IL
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January: 4h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in January
Royalton, IL
- Average sunshine days in January: 17.7 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in January
Royalton, IL
- Average UV index in January: 2
The months with the highest UV index are May, 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
Royalton, IL
- Average cloud cover in January: 49
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 27).
Average visibility in January
Royalton, IL
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Royalton, Illinois, USA
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