January weather forecastEffingham, IL
January
Weather in January
January, the same as December, is an icy winter month in Effingham, Illinois, with temperature in the range of an average low of 23°F (-5°C) and an average high of 35.2°F (1.8°C).Temperature
January proves to be the coldest month, recording an average maximum temperature of 35.2°F (1.8°C) and a minimum temperature of 23°F (-5°C).Humidity
The average relative humidity in January is 78%.Rainfall
In Effingham, Illinois, during January, the rain falls for 6.9 days and regularly aggregates up to 1.46" (37mm) of precipitation. In Effingham, during the entire year, the rain falls for 135.9 days and collects up to 21.89" (556mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Effingham. January is the month with the most snowfall in Effingham. Snow falls for 4.8 days and accumulates 1.18" (30mm) of snow.Daylight
In January, the average length of the day is 9h and 47min.On the first day of the month, sunrise is at 7:13 am and sunset at 4:41 pm. On the last day of January, sunrise is at 7:01 am and sunset at 5:13 pm CST.
Sunshine
The month with the least sunshine in Effingham is January, with an average of 4.3h 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 Effingham. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A typical high UV index of 2 in January suggests the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Effingham, IL
- Average high temperature in January: 35.2°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in January: 23°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (23°F).
Average pressure in January
Effingham, 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
Effingham, IL
- Average wind speed in January: 10.4mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in January
Effingham, IL
- Average humidity in January: 78%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Effingham, IL
- Average rainfall in January: 1.46"
The wettest month (with the highest rainfall) is April (2.83").
The driest month (with the least rainfall) is February (1.06").
Average rainfall days in January
Effingham, IL
- Average rainfall days in January: 6.9 days
The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in January
Effingham, IL
- Average snowfall in January: 1.18"
The month with the highest snowfall is January (1.18").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Effingham, IL
- Average snowfall days in January: 4.8 days
The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Effingham, 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 30min).
- Average sunshine in January: 4h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in January
Effingham, IL
- Average sunshine days in January: 20 days
The month with the most sunshine days is January (20 days).
The month with the least sunshine days is May (12.9 days).
Average UV index in January
Effingham, 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
Effingham, IL
- Average cloud cover in January: 53
The months with the most cloud cover are January and February (Cloud cover 53).
The months with the least cloud cover are June and September (Cloud cover 29).
Average visibility in January
Effingham, 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).





