May weather forecast
Piedmont, SC

Weather in May

The last month of the spring, May, is a moderately hot month in Piedmont, South Carolina, with an average temperature ranging between max 78.4°F (25.8°C) and min 57.7°F (14.3°C).

Temperature

In May, the average high-temperature marginally rises from an agreeable 70.5°F (21.4°C) in April to a warm 78.4°F (25.8°C). The average low-temperature, in May, is 57.7°F (14.3°C).

Humidity

In Piedmont, South Carolina, the average relative humidity in May is 75%.

Rainfall

In May, in Piedmont, the rain falls for 15.3 days. Throughout May, 3.15" (80mm) of precipitation is accumulated. Throughout the year, in Piedmont, there are 150.6 rainfall days, and 32.64" (829mm) of precipitation is accumulated.

Snowfall

In Piedmont, snow does not fall in April through October.

Daylight

The average length of the day in May is 13h and 59min.
On the first day of May in Piedmont, South Carolina, sunrise is at 6:39 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 8:37 pm EDT.

Sunshine

The average sunshine in May in Piedmont is 10h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.
Note: In May, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in May in Piedmont?

The average high-temperature, in May, is 78.4°F (25.8°C), while the average low-temperature is 57.7°F (14.3°C).

What is the average humidity in May in Piedmont?

In May, the average relative humidity in Piedmont, South Carolina, is 75%.

How much does it rain in Piedmont in May?

In Piedmont, South Carolina, during May, the rain falls for 15.3 days and regularly aggregates up to 3.15" (80mm) of precipitation.

When it does not snow in Piedmont?

April through October are months without snowfall in Piedmont.

What is the average length of the day in May in Piedmont?

The average day length in May in Piedmont, South Carolina, is 13h and 59min.

When are sunrise and sunset in May in Piedmont?

In May, on the first day of the month, sunrise is at 6:39 am and sunset at 8:14 pm. On the last day of the month, in Piedmont, South Carolina, sunrise is at 6:18 am and sunset at 8:37 pm EDT.

How long on average sun shines in May in Piedmont?

In Piedmont, the average sunshine duration in May is 10h.

What is the month with the highest UV index in Piedmont?

The months with the highest UV index in Piedmont, South Carolina, are May through August, with an average maximum UV index of 6.

How high is the UV index in May in Piedmont?

In May, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Piedmont, SC

Average temperature in May - Piedmont, SC
  • Average high temperature in May: 78.4°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (49.3°F).

  • Average low temperature in May: 57.7°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).

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Average pressure in May
Piedmont, SC

Average pressure in May - Piedmont, SC
  • Average pressure in May: 30.03"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

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Average wind speed in May
Piedmont, SC

Average wind speed in May - Piedmont, SC
  • Average wind speed in May: 5.3mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in May
Piedmont, SC

Average humidity in May - Piedmont, SC
  • Average humidity in May: 75%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in May
Piedmont, SC

Average rainfall in May - Piedmont, SC
  • Average rainfall in May: 3.15"

The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.38").

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Average rainfall days in May
Piedmont, SC

Average rainfall days in May - Piedmont, SC
  • Average rainfall days in May: 15.3 days

The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is November (7.8 days).

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Average snowfall in May
Piedmont, SC

Average snowfall in May - Piedmont, SC
  • Average snowfall in May: 0"

The month with the highest snowfall is December (2.01").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in May
Piedmont, SC

Average snowfall days in May - Piedmont, SC
  • Average snowfall days in May: 0 days

The months with the highest number of snowfall days are January and February (1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
Piedmont, SC

Average daylight in May / Average sunshine in May - Piedmont, SC
  • Average daylight in May: 13h and 59min

The month with the longest days is June (Average daylight: 14h and 27min).
The month with the shortest days is December (Average daylight: 9h and 53min).

  • Average sunshine in May: 10h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in May
Piedmont, SC

Average sunshine days in May - Piedmont, SC
  • Average sunshine days in May: 13.8 days

The month with the most sunshine days is October (21.9 days).
The month with the least sunshine days is July (11.5 days).

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Average UV index in May
Piedmont, SC

Average UV index in May - Piedmont, SC
  • Average UV index in May: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in May
Piedmont, SC

Average cloud cover in May - Piedmont, SC
  • Average cloud cover in May: 33

The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is June (Cloud cover 27).

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Average visibility in May
Piedmont, SC

Average visibility in May - Piedmont, SC
  • 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).

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