January weather forecastDearborn, MI
January
Weather in January
Expect the coldest conditions to arrive in January when Dearborn, Michigan, is stuck in the grips of winter. It is not unusual to have the temperature plummet down to 19.2°F (-7.1°C), while the highs barely scrape 28.9°F (-1.7°C). Snowfall is also quite prevalent during this month with a stark contrast to the sunny weather experienced during other parts of the year. As the month proceeds, temperatures barely rise, resulting in a continuous freeze throughout the month. Days are shorter, often adding to the feeling of the January chill.Temperature
The coldest time of the year in Dearborn is January, with temperatures averaging a high of 28.9°F (-1.7°C) and a low of 19.2°F (-7.1°C).Humidity
In January, the average relative humidity is 84%.Rainfall
January and February are months with the least rain when the rain falls for 7 days and typically aggregates up to 0.87" (22mm) of rain.Snowfall
January through May, November and December are months with snowfall. In Dearborn, in January, during 13.3 snowfall days, 2.52" (64mm) of snow is typically accumulated. In Dearborn, during the entire year, snow falls for 47.2 days and aggregates up to 9.69" (246mm) of snow.Daylight
In January, the average length of the day is 9h and 31min.On the first day of January, sunrise is at 8:01 am and sunset at 5:10 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 5:44 pm EST.
Sunshine
With an average of 3.1h of sunshine, January has the least sunshine of the year.UV index
In Dearborn, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 2 during January translates into the following directions:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Dearborn, MI
- Average high temperature in January: 28.9°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in January: 19.2°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).
Average pressure in January
Dearborn, MI
- Average pressure in January: 30.08"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Dearborn, MI
- Average wind speed in January: 10.3mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in January
Dearborn, MI
- Average humidity in January: 84%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (73%).
Average rainfall in January
Dearborn, MI
- Average rainfall in January: 0.87"
The wettest month (with the highest rainfall) is May (2.2").
The driest months (with the least rainfall) are January and February (0.87").
Average rainfall days in January
Dearborn, MI
- Average rainfall days in January: 7 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in January
Dearborn, MI
- Average snowfall in January: 2.52"
The month with the highest snowfall is February (2.95").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Dearborn, MI
- Average snowfall days in January: 13.3 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Dearborn, MI
- Average daylight in January: 9h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January: 3h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in January
Dearborn, MI
- Average sunshine days in January: 13.6 days
The month with the most sunshine days is October (16.8 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in January
Dearborn, MI
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Dearborn, MI
- Average cloud cover in January: 67
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in January
Dearborn, MI
- 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).





