January weather forecastRoodhouse, IL
January
Weather in January
January, the same as December, is another cold winter month in Roodhouse, Illinois, with an average temperature fluctuating between 21.9°F (-5.6°C) and 34.3°F (1.3°C).Temperature
Roodhouse's January weather reaches an average high of 34.3°F (1.3°C) and an average low of 21.9°F (-5.6°C), making it the coldest month.Humidity
In Roodhouse, the average relative humidity in January is 78%.Rainfall
January and November are months with the least rain in Roodhouse when the rain falls for 5.5 days and typically aggregates up to 0.83" (21mm) of rain.Snowfall
January through April, November and December are months with snowfall. In Roodhouse, in January, snow falls for 7.2 days, with typically accumulated 1.34" (34mm) of snow. Throughout the year, in Roodhouse, there are 22.5 snowfall days, and 5.08" (129mm) of snow is accumulated.Daylight
In Roodhouse, the average length of the day in January is 9h and 46min.On the first day of the month, sunrise is at 7:21 am and sunset at 4:48 pm. On the last day of January, sunrise is at 7:09 am and sunset at 5:19 pm CST.
Sunshine
January has the least sunshine of the year, with an average of 4.4h of sunshine.UV index
The months with the lowest UV index in Roodhouse are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: A maximum daily UV index of 2 during January morphs into the following directions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Roodhouse, IL
- Average high temperature in January: 34.3°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in January: 21.9°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in January
Roodhouse, IL
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Roodhouse, IL
- Average wind speed in January: 9.8mph
The windiest months (with the highest average wind speed) are January, February and April (9.8mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in January
Roodhouse, IL
- Average humidity in January: 78%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Roodhouse, IL
- Average rainfall in January: 0.83"
The wettest month (with the highest rainfall) is June (2.44").
The driest months (with the least rainfall) are January and November (0.83").
Average rainfall days in January
Roodhouse, IL
- Average rainfall days in January: 5.5 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in January
Roodhouse, IL
- Average snowfall in January: 1.34"
The month with the highest snowfall is February (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Roodhouse, IL
- Average snowfall days in January: 7.2 days
The month with the highest number of snowfall days is January (7.2 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
Roodhouse, IL
- Average daylight in January: 9h and 48min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January: 4h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in January
Roodhouse, IL
- Average sunshine days in January: 19.9 days
The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in January
Roodhouse, 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
Roodhouse, IL
- Average cloud cover in January: 53
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in January
Roodhouse, 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).





