January weather forecastAssumption, IL
January
Weather in January
January, like December, in Assumption, Illinois, is a wintry winter month, with an average temperature varying between 33.6°F (0.9°C) and 21.6°F (-5.8°C).Temperature
With its high average temperature of 33.6°F (0.9°C) and a low of 21.6°F (-5.8°C), January is regarded as the coldest month.Humidity
In January, the average relative humidity is 79%.Rainfall
In Assumption, Illinois, in January, during 7.3 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. In Assumption, during the entire year, the rain falls for 139.6 days and collects up to 24.25" (616mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In January, in Assumption, it is snowing for 7.6 days. Throughout January, 2.24" (57mm) of snow is accumulated. In Assumption, during the entire year, snow falls for 23.6 days and aggregates up to 8.54" (217mm) of snow.Daylight
In Assumption, the average length of the day in January is 9h and 46min.On the first day of the month, sunrise is at 7:16 am and sunset at 4:42 pm. On the last day of January, in Assumption, Illinois, sunrise is at 7:04 am and sunset at 5:14 pm CST.
Sunshine
January has the least sunshine of the year in Assumption, with an average of 4.1h of sunshine.UV index
The months with the lowest UV index in Assumption, Illinois, are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.Note: A typical high UV index of 2 in January suggests the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. To protect against the Sun's most potent rays, avoid direct exposure around midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the 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
Assumption, IL
- Average high temperature in January: 33.6°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in January: 21.6°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in January
Assumption, 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 (29.92"Hg).
Average wind speed in January
Assumption, IL
- Average wind speed in January: 10.7mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in January
Assumption, IL
- Average humidity in January: 79%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall in January
Assumption, IL
- Average rainfall in January: 1.5"
The wettest months (with the highest rainfall) are April and May (2.91").
The driest months (with the least rainfall) are February and December (1.38").
Average rainfall days in January
Assumption, IL
- Average rainfall days in January: 7.3 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in January
Assumption, IL
- Average snowfall in January: 2.24"
The month with the highest snowfall is February (2.8").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Assumption, IL
- Average snowfall days in January: 7.6 days
The month with the highest number of snowfall days is January (7.6 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
Assumption, 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 6min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in January
Assumption, IL
- Average sunshine days in January: 17.8 days
The month with the most sunshine days is October (19.7 days).
The month with the least sunshine days is May (11.6 days).
Average UV index in January
Assumption, 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
Assumption, IL
- Average cloud cover in January: 56
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are June and September (Cloud cover 30).
Average visibility in January
Assumption, IL
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
