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 shift into May brings a slight increase in the average high-temperature, moving from a warm 73.4°F (23°C) in April to a still moderately hot 80.1°F (26.7°C). An average low-temperature of 63.1°F (17.3°C) is expected during May.Humidity
With an average relative humidity of 79%, May is the most humid month.Rainfall
In Greeleyville, during May, the rain falls for 16.2 days and regularly aggregates up to 3.19" (81mm) of precipitation. In Greeleyville, South Carolina, during the entire year, the rain falls for 168.1 days and collects up to 33.43" (849mm) of precipitation.Snowfall
In Greeleyville, snow does not fall in March through December.Daylight
In May, the average length of the day is 13h and 55min.On the first day of May, sunrise is at 6:30 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 8:24 pm EDT.
Sunshine
In May, the average sunshine is 9.9h.UV index
In Greeleyville, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high UV index of 6 in May translates into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the most humid month?
What is the average humidity in May?
How much does it rain in Greeleyville 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 Greeleyville have in May?
What is the UV index reading in May?
Average temperature in May
Greeleyville, SC
- Average high temperature in May: 80.1°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (53.8°F).
- Average low temperature in May: 63.1°F
The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).
Average pressure in May
Greeleyville, SC
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in May
Greeleyville, SC
- Average wind speed in May: 6.7mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in May
Greeleyville, SC
- Average humidity in May: 79%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is January (73%).
Average rainfall in May
Greeleyville, SC
- Average rainfall in May: 3.19"
The wettest month (with the highest rainfall) is August (4.76").
The driest month (with the least rainfall) is January (1.46").
Average rainfall days in May
Greeleyville, SC
- Average rainfall days in May: 16.2 days
The month with the highest number of rainy days is July (22.3 days).
The month with the least rainy days is November (8.1 days).
Average snowfall in May
Greeleyville, SC
- Average snowfall in May: 0"
The months with the highest snowfall are January and February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in May
Greeleyville, 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
Greeleyville, 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 months with the least sunshine are January and December (Average sunshine: 5h and 42min).
Average sunshine days in May
Greeleyville, SC
- Average sunshine days in May: 12.5 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (6.1 days).
Average UV index in May
Greeleyville, 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, February and December (UV index 3).
Average cloud cover in May
Greeleyville, SC
- Average cloud cover in May: 36
The months with the most cloud cover are February and December (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in May
Greeleyville, SC
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Greeleyville, South Carolina, USA
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