January weather forecastGarrett, IL
January
Weather in January
January, the same as December, is another cold winter month in Garrett, Illinois, with temperature in the range of an average high of 33.4°F (0.8°C) and an average low of 21.6°F (-5.8°C).Temperature
In Garrett, the lowest average temperatures are observed in January, with a high of 33.4°F (0.8°C) and a low of 21.6°F (-5.8°C).Humidity
The average relative humidity in January is 79%.Rainfall
In Garrett, Illinois, during January, the rain falls for 7.3 days and regularly aggregates up to 1.54" (39mm) of precipitation. Throughout the year, there are 144.2 rainfall days, and 22.4" (569mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In January, it is snowing for 8.2 days. Throughout January, 1.73" (44mm) of snow is accumulated. In Garrett, during the entire year, snow falls for 25.8 days and aggregates up to 6.38" (162mm) of snow.Daylight
The average length of the day in January in Garrett is 9h and 44min.On the first day of January in Garrett, sunrise is at 7:14 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 5:11 pm CST.
Sunshine
The month with the least sunshine in Garrett, Illinois, is January, with an average of 4.1h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: An average UV index of 2 in January transforms into this advice:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Garrett, IL
- Average high temperature in January: 33.4°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in January: 21.6°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in January
Garrett, 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 (29.93"Hg).
Average wind speed in January
Garrett, IL
- Average wind speed in January: 10.8mph
The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in January
Garrett, 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
Garrett, IL
- Average rainfall in January: 1.54"
The wettest month (with the highest rainfall) is April (2.72").
The driest months (with the least rainfall) are February and September (1.26").
Average rainfall days in January
Garrett, IL
- Average rainfall days in January: 7.3 days
The months with the highest number of rainy days are May and July (16.8 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in January
Garrett, IL
- Average snowfall in January: 1.73"
The month with the highest snowfall is February (1.89").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Garrett, IL
- Average snowfall days in January: 8.2 days
The month with the highest number of snowfall days is January (8.2 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
Garrett, IL
- Average daylight in January: 9h and 42min
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
Garrett, IL
- Average sunshine days in January: 17.3 days
The month with the most sunshine days is October (19 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in January
Garrett, 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
Garrett, IL
- Average cloud cover in January: 56
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in January
Garrett, 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).
