January weather forecastCoulterville, IL
January
Weather in January
January, the same as December, is another cold winter month in Coulterville, Illinois, with an average temperature fluctuating between 25.3°F (-3.7°C) and 38.8°F (3.8°C).Temperature
January is the month when Coulterville, Illinois, experiences its coldest temperatures, averaging a high of 38.8°F (3.8°C) and a low of 25.3°F (-3.7°C).Humidity
In Coulterville, the average relative humidity in January is 75%.Rainfall
In Coulterville, during January, the rain falls for 6.1 days and regularly aggregates up to 0.98" (25mm) of precipitation. Throughout the year, there are 125.7 rainfall days, and 18.31" (465mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, October through December. In Coulterville, in January, snow falls for 4.8 days, with typically accumulated 1.26" (32mm) of snow. In Coulterville, during the entire year, snow falls for 14.8 days and aggregates up to 3.94" (100mm) of snow.Daylight
The average length of the day in January is 9h and 52min.On the first day of the month, sunrise is at 7:14 am and sunset at 4:48 pm. On the last day of January, in Coulterville, sunrise is at 7:04 am and sunset at 5:19 pm CST.
Sunshine
January has the least sunshine of the year in Coulterville, 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 in Coulterville, Illinois. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: In January, the average maximum UV index of 2 translates into the following recommendations:
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. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. 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
Average temperature in January
Coulterville, IL
- Average high temperature in January: 38.8°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 (38.8°F).
- Average low temperature in January: 25.3°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 (25.3°F).
Average pressure in January
Coulterville, 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
Coulterville, IL
- Average wind speed in January: 9.5mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity in January
Coulterville, 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
Coulterville, IL
- Average rainfall in January: 0.98"
The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is February (0.94").
Average rainfall days in January
Coulterville, IL
- Average rainfall days in January: 6.1 days
The month with the highest number of rainy days is July (15 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in January
Coulterville, IL
- Average snowfall in January: 1.26"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in January
Coulterville, IL
- Average snowfall days in January: 4.8 days
The month with the highest number of snowfall days is January (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
Coulterville, IL
- Average daylight in January: 9h and 54min
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 42min
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
Coulterville, IL
- Average sunshine days in January: 21 days
The month with the most sunshine days is December (21.7 days).
The month with the least sunshine days is July (13 days).
Average UV index in January
Coulterville, 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
Coulterville, IL
- Average cloud cover in January: 49
The months with the most cloud cover are January and February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in January
Coulterville, 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).
