May weather forecast
Salley, SC

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Weather in May

May, the last month of the spring in Salley, is another warm month, with an average temperature fluctuating between 81°F (27.2°C) and 63.5°F (17.5°C).

Temperature

Salley's weather shows a minor temperature rise with the arrival of May, moving from a moderately hot 74.1°F (23.4°C) in April to a still warm 81°F (27.2°C). Salley records an average low of 63.5°F (17.5°C) throughout the nights in May.

Heat index

Throughout May, the heat index is appraised at a hot 86°F (30°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', shows a temperature sensation when both heat and moisture conditions are combined. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.

Humidity

In Salley, the average relative humidity in May is 74%.

Rainfall

In Salley, in May, during 14.7 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. Throughout the year, in Salley, there are 157.7 rainfall days, and 30.2" (767mm) of precipitation is accumulated.

Snowfall

In Salley, snow does not fall in March through November.

Daylight

The average length of the day in May is 13h and 55min.
On the first day of the month, sunrise is at 6:35 am and sunset at 8:08 pm. On the last day of May, in Salley, sunrise is at 6:16 am and sunset at 8:29 pm EDT.

Sunshine

In Salley, the average sunshine in May is 9.9h.

UV index

In Salley, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 6 during May translates into the following directions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Salley in May?

An average high-temperature, in May, in Salley, is 81°F (27.2°C) and the average low-temperature is 63.5°F (17.5°C). In May, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, is appraised at 86°F (30°C).

What is the average humidity in May in Salley?

In May, the average relative humidity is 74%.

How much does it rain in Salley in May?

In Salley, in May, during 14.7 rainfall days, 2.83" (72mm) of precipitation is typically accumulated.

When it does not snow in Salley?

In Salley, snow does not fall in March through November.

How many hours of daylight does Salley have in May?

The average day length in May is 13h and 55min.

When is the sunrise / sunset in May in Salley?

In May, on the first day of the month, sunrise is at 6:35 am and sunset at 8:08 pm. On the last day of the month, in Salley, sunrise is at 6:16 am and sunset at 8:29 pm EDT.

How long on average sun shines in May in Salley?

In Salley, the average sunshine duration in May is 9.9h.

What is the UV index intensity in May in Salley?

In May, the average daily maximum UV index in Salley, South Carolina, is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to 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
Salley, SC

Average temperature in May - Salley, SC
  • Average high temperature in May: 81°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (54°F).

  • Average low temperature in May: 63.5°F

The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).

Average pressure in May
Salley, SC

Average pressure in May - Salley, SC
  • Average pressure in May: 30.02"Hg

The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in May
Salley, SC

Average wind speed in May - Salley, SC
  • Average wind speed in May: 7.4mph

The windiest months (with the highest average wind speed) are February, March and April (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in May
Salley, SC

Average humidity in May - Salley, SC
  • Average humidity in May: 74%

The month with the highest relative humidity is December (75%).
The months with the lowest relative humidity are January and November (70%).

Average rainfall in May
Salley, SC

Average rainfall in May - Salley, SC
  • Average rainfall in May: 2.83"

The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is November (1.77").

Average rainfall days in May
Salley, SC

Average rainfall days in May - Salley, SC
  • Average rainfall days in May: 14.7 days

The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (8.2 days).

Average snowfall in May
Salley, SC

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

The month with the highest snowfall is January (0.31").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in May
Salley, SC

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

The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

Average daylight in May / Average sunshine in May - Salley, SC
  • Average daylight in May: 13h and 5min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in May: 9h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

Average sunshine days in May
Salley, SC

Average sunshine days in May - Salley, SC
  • Average sunshine days in May: 14.7 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (9.4 days).

Average UV index in May
Salley, SC

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

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

Average cloud cover in May
Salley, SC

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

The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 28).

Average visibility in May
Salley, SC

Average visibility in May - Salley, 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).

Salley, South Carolina, USA

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