May weather forecast
Flat Rock, NC

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Weather in May

May, the last month of the spring in Flat Rock, is a warm month, with an average temperature varying between 53.4°F (11.9°C) and 75°F (23.9°C).

Temperature

May introduces a marginal temperature uplift, with average high-temperatures adjusting from April's enjoyable 66.7°F (19.3°C) to a warm 75°F (23.9°C). An average nighttime temperature of 53.4°F (11.9°C) is noted during the month of May.

Humidity

May and December, with an average relative humidity of 77%, are the most humid months in Flat Rock.

Rainfall

In Flat Rock, in May, it is raining for 18.3 days, with typically 3.31" (84mm) of accumulated precipitation. In Flat Rock, during the entire year, the rain falls for 167.9 days and collects up to 35" (889mm) of precipitation.

Snowfall

In Flat Rock, snow does not fall in May through October.

Daylight

In May, the average length of the day is 14h and 2min.
On the first day of the month, sunrise is at 6:37 am and sunset at 8:16 pm. On the last day of May, in Flat Rock, North Carolina, sunrise is at 6:16 am and sunset at 8:38 pm EDT.

Sunshine

In May, the average sunshine in Flat Rock is 9.8h.

UV index

In May, the average daily maximum UV index in Flat Rock is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 5 in May, converts into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature in Flat Rock?

The average high-temperature, in May, in Flat Rock, is 75°F (23.9°C), while the average low-temperature is 53.4°F (11.9°C).

What are the most humid months in Flat Rock?

May and December, with an average relative humidity of 77%, are most humid months in Flat Rock, North Carolina.

What is the average humidity in May in Flat Rock?

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

How much does it rain in Flat Rock in May?

In Flat Rock, North Carolina, in May, it is raining for 18.3 days, with typically 3.31" (84mm) of accumulated precipitation.

When it does not snow in Flat Rock?

May through October are months without snowfall in Flat Rock.

Does it snow in Flat Rock in May?

In May, in Flat Rock, North Carolina, it doesn't snow. April is the latest month when it typically snows.

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

In May, the average day length is 14h and 2min.

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

In May, on the first day of the month, sunrise is at 6:37 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 8:38 pm EDT.

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

In Flat Rock, North Carolina, the average sunshine duration in May is 9.8h.

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

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

Average temperature in May
Flat Rock, NC

Average temperature in May - Flat Rock, NC
  • Average high temperature in May: 75°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (45.5°F).

  • Average low temperature in May: 53.4°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).

Average pressure in May
Flat Rock, NC

Average pressure in May - Flat Rock, NC
  • Average pressure in May: 30.03"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in May
Flat Rock, NC

Average wind speed in May - Flat Rock, NC
  • Average wind speed in May: 5mph

The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

Average humidity in May
Flat Rock, NC

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

The months with the highest relative humidity are May and December (77%).
The months with the lowest relative humidity are January, July and November (73%).

Average rainfall in May
Flat Rock, NC

Average rainfall in May - Flat Rock, NC
  • Average rainfall in May: 3.31"

The wettest month (with the highest rainfall) is December (3.9").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in May
Flat Rock, NC

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

The month with the highest number of rainy days is July (19.9 days).
The month with the least rainy days is November (9 days).

Average snowfall in May
Flat Rock, NC

Average snowfall in May - Flat Rock, NC
  • Average snowfall in May: 0"

The month with the highest snowfall is December (4.72").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Flat Rock, NC

Average snowfall days in May - Flat Rock, NC
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (3.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Flat Rock, NC

Average daylight in May / Average sunshine in May - Flat Rock, NC
  • Average daylight in May: 14h and 0min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in May: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in May
Flat Rock, NC

Average sunshine days in May - Flat Rock, NC
  • Average sunshine days in May: 11.2 days

The months with the most sunshine days are October and November (19.3 days).
The month with the least sunshine days is July (7.9 days).

Average UV index in May
Flat Rock, NC

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

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 and December (UV index 2).

Average cloud cover in May
Flat Rock, NC

Average cloud cover in May - Flat Rock, NC
  • Average cloud cover in May: 36

The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in May
Flat Rock, NC

Average visibility in May - Flat Rock, NC
  • Average visibility in May: 5mi

The months with the highest visibility are February, March, April, June, July, August, October and November (6mi).
The months with the lowest visibility are January, May, September and December (5mi).

Flat Rock, North Carolina, USA

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