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
Williamston in May denotes a subtle temperature transition, adjusting from an average high of a pleasant 71.4°F (21.9°C) in April to a warm 79.7°F (26.5°C). The temperature dips to an average of 59°F (15°C) during May nights.Humidity
In May, the average relative humidity is 76%.Rainfall
The month with the most rainfall in Williamston is May, when the rain falls for 16.1 days and typically aggregates up to 4.09" (104mm) of precipitation.Snowfall
In Williamston, South Carolina, snow does not fall in April through October.Daylight
In May, the average length of the day is 13h and 59min.On the first day of the month, sunrise is at 6:38 am and sunset at 8:15 pm. On the last day of May, in Williamston, sunrise is at 6:18 am and sunset at 8:37 pm EDT.
Sunshine
The average sunshine in May in Williamston is 9.5h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 6 in May, converts into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Frequently asked questions
What are May temperatures in Williamston?
What is the average humidity in May in Williamston?
What is the rainiest month in Williamston?
How many days does it rain in May in Williamston?
When it does not snow in Williamston?
How many hours of daylight does Williamston have in May?
When are sunrise and sunset in May in Williamston?
How many hours of sunshine does Williamston have in May?
What is the month with the highest UV index in Williamston?
What is the UV index intensity in May in Williamston?
Average temperature in May
Williamston, SC
- Average high temperature in May: 79.7°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (50°F).
- Average low temperature in May: 59°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (34.5°F).
Average pressure in May
Williamston, 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 (29.98"Hg).
Average wind speed in May
Williamston, SC
- Average wind speed in May: 5.8mph
The windiest month (with the highest average wind speed) is February (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in May
Williamston, SC
- Average humidity in May: 76%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).
Average rainfall in May
Williamston, SC
- Average rainfall in May: 4.09"
The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in May
Williamston, SC
- Average rainfall days in May: 16.1 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is October (8.5 days).
Average snowfall in May
Williamston, SC
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.1").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Williamston, SC
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Williamston, SC
- Average daylight in May: 14h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in May: 9h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in May
Williamston, SC
- Average sunshine days in May: 12.9 days
The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is July (11.5 days).
Average UV index in May
Williamston, SC
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in May
Williamston, SC
- Average cloud cover in May: 37
The months with the most cloud cover are February and December (Cloud cover 45).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in May
Williamston, 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).
Williamston, South Carolina, USA
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