January weather forecastCave-In-Rock, IL
January
Weather in January
January, the same as December, is another cold winter month in Cave-In-Rock, Illinois, with an average temperature varying between 27.5°F (-2.5°C) and 40.5°F (4.7°C).Temperature
With its high average temperature of 40.5°F (4.7°C) and a low of 27.5°F (-2.5°C), January is regarded as the coldest month.Humidity
In Cave-In-Rock, the average relative humidity in January is 76%.Rainfall
In Cave-In-Rock, in January, it is raining for 9.1 days, with typically 1.57" (40mm) of accumulated precipitation. In Cave-In-Rock, during the entire year, the rain falls for 148.8 days and collects up to 27.05" (687mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Cave-In-Rock. In Cave-In-Rock, in January, during 4.5 snowfall days, 1.06" (27mm) of snow is typically accumulated. In Cave-In-Rock, during the entire year, snow falls for 15 days and aggregates up to 4.8" (122mm) of snow.Daylight
In January, the average length of the day is 9h and 56min.On the first day of the month, sunrise is at 7:07 am and sunset at 4:45 pm. On the last day of January, in Cave-In-Rock, sunrise is at 6:56 am and sunset at 5:15 pm CST.
Sunshine
January and February, with an average of 4.6h of sunshine, are months with the least sunshine.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Cave-In-Rock. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.Note: The daily maximum UV index of 2 in January interprets into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Cave-In-Rock, IL
- Average high temperature in January: 40.5°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (40.5°F).
- Average low temperature in January: 27.5°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 (27.5°F).
Average pressure in January
Cave-In-Rock, 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 (29.95"Hg).
Average wind speed in January
Cave-In-Rock, IL
- Average wind speed in January: 9.4mph
The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in January
Cave-In-Rock, IL
- Average humidity in January: 76%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Cave-In-Rock, IL
- Average rainfall in January: 1.57"
The wettest month (with the highest rainfall) is February (3.03").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days in January
Cave-In-Rock, IL
- Average rainfall days in January: 9.1 days
The months with the highest number of rainy days are May and July (16.3 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in January
Cave-In-Rock, IL
- Average snowfall in January: 1.06"
The month with the highest snowfall is February (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Cave-In-Rock, IL
- Average snowfall days in January: 4.5 days
The month with the highest number of snowfall days is January (4.5 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
Cave-In-Rock, IL
- Average daylight in January: 9h and 54min
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 36min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in January
Cave-In-Rock, IL
- Average sunshine days in January: 17.7 days
The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is July (12.1 days).
Average UV index in January
Cave-In-Rock, 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
Cave-In-Rock, IL
- Average cloud cover in January: 51
The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June, August and September (Cloud cover 28).
Average visibility in January
Cave-In-Rock, 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).
