May weather forecast
Flat Rock, MI

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Weather in May

May, the last month of the spring in Flat Rock, is a refreshing month, with temperature in the range of an average high of 65.8°F (18.8°C) and an average low of 50.5°F (10.3°C).

Temperature

With the onset of May, the average high-temperature slightly shifts from April's cool 53.4°F (11.9°C) to an enjoyable 65.8°F (18.8°C). The average nighttime temperature lowers to a cool 50.5°F (10.3°C) throughout May.

Humidity

In Flat Rock, the average relative humidity in May is 77%.

Rainfall

May is the month with the most rainfall. Rain falls for 18.3 days and accumulates 3.15" (80mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall in Flat Rock. May is the last month it regularly snows in Flat Rock. During 0.1 snowfall days, in May, Flat Rock aggregates 0.12" (3mm) of snow. Throughout the year, in Flat Rock, there are 37.7 snowfall days, and 12.87" (327mm) of snow is accumulated.

Daylight

In Flat Rock, the average length of the day in May is 14h and 35min.
On the first day of May, sunrise is at 6:27 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 9:02 pm EDT.

Sunshine

The average sunshine in May in Flat Rock is 8.9h.

UV index

In Flat Rock, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: The daily high UV index of 5 in May translates into this advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Flat Rock in May?

An average high-temperature, in May, in Flat Rock, is 65.8°F (18.8°C) and the average low-temperature is 50.5°F (10.3°C).

What is the average humidity in May in Flat Rock?

In May, the average relative humidity in Flat Rock, Michigan, is 77%.

What is the rainiest month in Flat Rock?

May is the month with the most rainfall in Flat Rock, Michigan. Rain falls for 18.3 days and accumulates 3.15" (80mm) of precipitation.

How many days does it rain in May in Flat Rock?

In Flat Rock, in May, it is raining for 18.3 days, with typically 3.15" (80mm) of accumulated precipitation.

What is the last month it snows in Flat Rock?

May is the last month it regularly snows in Flat Rock. During 0.1 snowfall days, in May, Flat Rock aggregates 0.12" (3mm) of snow.

How many hours of daylight does Flat Rock have in May?

In Flat Rock, the average day length in May is 14h and 35min.

What time are sunrise and sunset in May in Flat Rock?

On the first day of May, sunrise is at 6:27 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 9:02 pm EDT.

How long on average sun shines in May in Flat Rock?

In May, the average sunshine duration is 8.9h.

How high is the UV index in May in Flat Rock?

In Flat Rock, Michigan, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Flat Rock, MI

Average temperature in May - Flat Rock, MI
  • Average high temperature in May: 65.8°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 May: 50.5°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 May
Flat Rock, MI

Average pressure in May - Flat Rock, MI
  • Average pressure in May: 29.98"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 May
Flat Rock, MI

Average wind speed in May - Flat Rock, MI
  • Average wind speed in May: 8.3mph

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 May
Flat Rock, MI

Average humidity in May - Flat Rock, MI
  • Average humidity in May: 77%

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is October (75%).

Average rainfall in May
Flat Rock, MI

Average rainfall in May - Flat Rock, MI
  • Average rainfall in May: 3.15"

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 May
Flat Rock, MI

Average rainfall days in May - Flat Rock, MI
  • Average rainfall days in May: 18.3 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 May
Flat Rock, MI

Average snowfall in May - Flat Rock, MI
  • Average snowfall in May: 0.12"

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 May
Flat Rock, MI

Average snowfall days in May - Flat Rock, MI
  • Average snowfall days in May: 0.1 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 May /
Average sunshine in May
Flat Rock, MI

Average daylight in May / Average sunshine in May - Flat Rock, MI
  • Average daylight in May: 14h and 4min

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 May: 8h and 5min

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 May
Flat Rock, MI

Average sunshine days in May - Flat Rock, MI
  • Average sunshine days in May: 11.1 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 May
Flat Rock, MI

Average UV index in May - Flat Rock, MI
  • Average UV index in May: 5

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 May
Flat Rock, MI

Average cloud cover in May - Flat Rock, MI
  • Average cloud cover in May: 39

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 May
Flat Rock, MI

Average visibility in May - Flat Rock, MI
  • Average visibility in May: 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).

Flat Rock, Michigan, USA

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