Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The onset of May marks a slight increase in the average high-temperature, moving from a moderately hot 75.7°F (24.3°C) in April to a still warm 82.2°F (27.9°C). Sheldon, during May nights, observes an average temperature of 66.2°F (19°C).Heat index
During May, the heat index is estimated at a hot 87.8°F (31°C). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.Remember that heat index calculations are made for conditions in the shade with light wind. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Humidity
In May, the average relative humidity is 74%.Rainfall
In Sheldon, in May, during 15.3 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. In Sheldon, during the entire year, the rain falls for 166.9 days and collects up to 33.9" (861mm) of precipitation.Snowfall
In Sheldon, snow does not fall in February through December.Daylight
In May, the average length of the day is 13h and 50min.On the first day of May, sunrise is at 6:35 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 8:25 pm EDT.
Sunshine
The average sunshine in May is 10.3h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 7 in May interprets into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the average humidity in May?
How much does it rain in May?
When it does not snow?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Sheldon have in May?
What are the months with the highest UV index?
What is the UV index reading in May?
Average temperature in May
Sheldon, SC
- Average high temperature in May: 82.2°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (57.7°F).
- Average low temperature in May: 66.2°F
The months with the highest average low temperature are July and August (75.6°F).
The coldest month (with the lowest average low temperature) is January (42.6°F).
Average pressure in May
Sheldon, SC
- Average pressure in May: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).
Average wind speed in May
Sheldon, SC
- Average wind speed in May: 6.6mph
The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in May
Sheldon, SC
- Average humidity in May: 74%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are January and March (71%).
Average rainfall in May
Sheldon, SC
- Average rainfall in May: 2.8"
The wettest month (with the highest rainfall) is August (4.76").
The driest month (with the least rainfall) is January (1.54").
Average rainfall days in May
Sheldon, SC
- Average rainfall days in May: 15.3 days
The month with the highest number of rainy days is August (23.3 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in May
Sheldon, SC
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in May
Sheldon, SC
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Sheldon, 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: 10h and 2min
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 30min).
Average sunshine days in May
Sheldon, SC
- Average sunshine days in May: 13.6 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is August (5.2 days).
Average UV index in May
Sheldon, SC
- Average UV index in May: 7
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in May
Sheldon, SC
- Average cloud cover in May: 30
The months with the most cloud cover are February and December (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in May
Sheldon, 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).
Sheldon, South Carolina, USA
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