January weather forecastFlat Rock, MI
January
Weather in January
January, the same as December, in Flat Rock, Michigan, is a freezing cold winter month, with an average temperature ranging between max 29.5°F (-1.4°C) and min 19.4°F (-7°C).Temperature
Flat Rock's temperature records reveal January as the coldest month, marked by average highs of 29.5°F (-1.4°C) and lows of 19.4°F (-7°C).Humidity
In January, the average relative humidity in Flat Rock, Michigan, is 84%.Rainfall
In Flat Rock, in January, it is raining for 6.7 days, with typically 1.3" (33mm) of accumulated precipitation. In Flat Rock, during the entire year, the rain falls for 151.8 days and collects up to 25.47" (647mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In Flat Rock, during January, snow falls for 10.4 days and regularly aggregates up to 3.43" (87mm) of snow. Throughout the year, there are 37.7 snowfall days, and 12.87" (327mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 32min.On the first day of January, sunrise is at 8:01 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 5:45 pm EST.
Sunshine
The month with the least sunshine is January, with an average of 3.1h of sunshine.UV index
The average daily maximum UV index in January in Flat Rock is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In January, an average UV index of 2 transforms into the following instructions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Flat Rock, MI
- Average high temperature in January: 29.5°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in January: 19.4°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in January
Flat Rock, 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
Flat Rock, MI
- Average wind speed in January: 10.6mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in January
Flat Rock, MI
- Average humidity in January: 84%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is October (75%).
Average rainfall in January
Flat Rock, MI
- Average rainfall in January: 1.3"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is December (1.26").
Average rainfall days in January
Flat Rock, MI
- Average rainfall days in January: 6.7 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (6.1 days).
Average snowfall in January
Flat Rock, MI
- Average snowfall in January: 3.43"
The month with the highest snowfall is February (4.25").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Flat Rock, MI
- Average snowfall days in January: 10.4 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Flat Rock, 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 12min).
- Average sunshine in January: 3h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in January
Flat Rock, MI
- Average sunshine days in January: 15.8 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in January
Flat Rock, 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
Flat Rock, 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 28).
Average visibility in January
Flat Rock, 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).





