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
In Ruma, January is the month with the lowest recorded average temperatures, measuring a high of 39°F (3.9°C) and a low of 25.2°F (-3.8°C).Humidity
The average relative humidity in January is 75%.Rainfall
In Ruma, in January, during 6.6 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. Throughout the year, in Ruma, there are 138.9 rainfall days, and 26.81" (681mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall in Ruma, Illinois. January is the month with the most snowfall. Snow falls for 5.8 days and accumulates 2.01" (51mm) of snow.Daylight
In January, the average length of the day is 9h and 52min.On the first day of the month, sunrise is at 7:16 am and sunset at 4:50 pm. On the last day of January, sunrise is at 7:05 am and sunset at 5:21 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 4.7h of sunshine.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A typical high UV index of 2 in January suggests the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Direct Sun exposure should be minimized especially during midday when radiation is most intense. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
How cold does it get in January?
What is the average humidity in January?
How much does it rain in January?
What is the snowiest month?
How much does it snow in January?
How many hours of daylight does Ruma have in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Ruma have in January?
What is the month with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Ruma, IL
- Average high temperature in January: 39°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in January: 25.2°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in January
Ruma, 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
Ruma, IL
- Average wind speed in January: 9.4mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in January
Ruma, IL
- Average humidity in January: 75%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Ruma, IL
- Average rainfall in January: 1.77"
The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is February (1.42").
Average rainfall days in January
Ruma, IL
- Average rainfall days in January: 6.6 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in January
Ruma, IL
- Average snowfall in January: 2.01"
The month with the highest snowfall is January (2.01").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Ruma, IL
- Average snowfall days in January: 5.8 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in January /
Average sunshine in January
Ruma, IL
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 48min).
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
Ruma, IL
- Average sunshine days in January: 20.2 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in January
Ruma, 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 and December (UV index 2).
Average cloud cover in January
Ruma, IL
- Average cloud cover in January: 49
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in January
Ruma, 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).
Ruma, Illinois, USA
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