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
May sees a marginal temperature increase, moving from a pleasant 73°F (22.8°C) in April to a warm 80.8°F (27.1°C). An average low-temperature of 60.4°F (15.8°C) is expected during May.Heat index
The heat index for May is estimated at 84.2°F (29°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.Metrics for the heat index primarily focus on shaded spots and light wind conditions. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
In May, the average relative humidity is 75%.Rainfall
In Greenwood, in May, during 14.6 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. In Greenwood, South Carolina, during the entire year, the rain falls for 152.7 days and collects up to 31.34" (796mm) of precipitation.Snowfall
April through December are months without snowfall.Daylight
In May, the average length of the day is 13h and 58min.On the first day of the month, sunrise is at 6:38 am and sunset at 8:13 pm. On the last day of May, sunrise is at 6:17 am and sunset at 8:34 pm EDT.
Sunshine
In Greenwood, the average sunshine in May is 9.9h.UV index
The average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.Note: The daily maximum UV index of 6 in May interprets into the following advice:
Resist extreme sun exposure. Guarding against solar damage is essential. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. 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 are May temperatures?
What is the average humidity in May?
How many days does it rain in May?
When it does not snow?
How many hours of daylight does Greenwood have in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Greenwood have in May?
What is the UV index reading in May?
Average temperature in May
Greenwood, SC
- Average high temperature in May: 80.8°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (51.4°F).
- Average low temperature in May: 60.4°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (35.1°F).
Average pressure in May
Greenwood, 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
Greenwood, SC
- Average wind speed in May: 6mph
The windiest months (with the highest average wind speed) are February and April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in May
Greenwood, 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 (70%).
Average rainfall in May
Greenwood, SC
- Average rainfall in May: 3.11"
The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in May
Greenwood, SC
- Average rainfall days in May: 14.6 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is October (8.5 days).
Average snowfall in May
Greenwood, SC
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.87").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in May
Greenwood, SC
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (0.7 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
Greenwood, 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 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 18min).
Average sunshine days in May
Greenwood, SC
- Average sunshine days in May: 14.5 days
The month with the most sunshine days is October (21.1 days).
The month with the least sunshine days is August (11.4 days).
Average UV index in May
Greenwood, SC
- Average UV index in May: 6
The months with the highest UV index are June and August (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in May
Greenwood, SC
- Average cloud cover in May: 35
The month with the most cloud cover is December (Cloud cover 43).
The months with the least cloud cover are June, July and October (Cloud cover 29).
Average visibility in May
Greenwood, 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).
Greenwood, South Carolina, USA
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