January weather forecastSmithboro, IL
January
Weather in January
January, like December, in Smithboro, Illinois, is a wintry winter month, with an average temperature varying between 23.4°F (-4.8°C) and 36.1°F (2.3°C).Temperature
January is the month that records the lowest temperatures, with averages ranging from a high of 36.1°F (2.3°C) to a low of 23.4°F (-4.8°C).Humidity
In Smithboro, Illinois, the average relative humidity in January is 77%.Rainfall
In Smithboro, in January, it is raining for 6.3 days, with typically 1.5" (38mm) of accumulated precipitation. In Smithboro, during the entire year, the rain falls for 137.9 days and collects up to 24.88" (632mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Smithboro. In Smithboro, during January, snow falls for 5.8 days and regularly aggregates up to 1.57" (40mm) of snow. Throughout the year, there are 18.3 snowfall days, and 6.22" (158mm) of snow is accumulated.Daylight
The average length of the day in January in Smithboro is 9h and 49min.On the first day of January in Smithboro, sunrise is at 7:15 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 5:17 pm CST.
Sunshine
The months with the least sunshine in Smithboro are January and February, with an average of 4.5h 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 Smithboro. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average maximum UV index of 2 in January leads to these recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Smithboro, IL
- Average high temperature in January: 36.1°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in January: 23.4°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in January
Smithboro, 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 (29.92"Hg).
Average wind speed in January
Smithboro, IL
- Average wind speed in January: 10mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in January
Smithboro, IL
- Average humidity in January: 77%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Smithboro, IL
- Average rainfall in January: 1.5"
The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is February (1.26").
Average rainfall days in January
Smithboro, IL
- Average rainfall days in January: 6.3 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in January
Smithboro, IL
- Average snowfall in January: 1.57"
The month with the highest snowfall is December (1.89").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Smithboro, 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 September (0 days).
Average daylight in January /
Average sunshine in January
Smithboro, 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 30min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 30min).
Average sunshine days in January
Smithboro, IL
- Average sunshine days in January: 19.7 days
The month with the most sunshine days is December (20 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in January
Smithboro, 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
Smithboro, IL
- Average cloud cover in January: 52
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 29).
Average visibility in January
Smithboro, 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).
