April weather forecastFlat Rock, MI
April
Weather in April
April in Flat Rock, Michigan, is a fresh spring month, with an average temperature varying between 39.2°F (4°C) and 53.4°F (11.9°C).Temperature
A shift in the average high-temperature is noticeable in April, changing from a cold 42.4°F (5.8°C) in March to a fresh 53.4°F (11.9°C). During the month of April, an average low-temperature of 39.2°F (4°C) is recorded in Flat Rock.Humidity
The average relative humidity in April is 76%.Rainfall
In Flat Rock, in April, it is raining for 15.8 days, with typically 2.91" (74mm) of accumulated precipitation. Throughout the year, in Flat Rock, there are 151.8 rainfall days, and 25.47" (647mm) of precipitation is accumulated.Snowfall
Months with snowfall in Flat Rock, Michigan, are January through May, November and December. In April, it is snowing for 1.3 days. Throughout April, 0.87" (22mm) of snow is accumulated. Throughout the year, in Flat Rock, there are 37.7 snowfall days, and 12.87" (327mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 23min.On the first day of the month, sunrise is at 7:14 am and sunset at 7:59 pm. On the last day of April, in Flat Rock, sunrise is at 6:29 am and sunset at 8:31 pm EDT.
Sunshine
The average sunshine in April in Flat Rock is 7.3h.UV index
In April, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 3 in April translates into this advice:
Prioritize safety - Suggestions to prevent sun damage are offered. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Guard yourself! Snow reflection 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 April
Flat Rock, MI
- Average high temperature in April: 53.4°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 April: 39.2°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 April
Flat Rock, MI
- Average pressure in April: 29.96"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 April
Flat Rock, MI
- Average wind speed in April: 10mph
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 April
Flat Rock, MI
- Average humidity in April: 76%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is October (75%).
Average rainfall in April
Flat Rock, MI
- Average rainfall in April: 2.91"
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 April
Flat Rock, MI
- Average rainfall days in April: 15.8 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 April
Flat Rock, MI
- Average snowfall in April: 0.87"
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 April
Flat Rock, MI
- Average snowfall days in April: 1.3 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 April /
Average sunshine in April
Flat Rock, MI
- Average daylight in April: 13h and 24min
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 April: 7h and 18min
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 April
Flat Rock, MI
- Average sunshine days in April: 12 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 April
Flat Rock, MI
- Average UV index in April: 3
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 April
Flat Rock, MI
- Average cloud cover in April: 48
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 April
Flat Rock, MI
- Average visibility in April: 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).





