May weather forecastSiler City, NC
May
Weather in May
May, the last month of the spring in Siler City, is a moderately hot month, with temperature in the range of an average low of 59°F (15°C) and an average high of 78.6°F (25.9°C).Temperature
With the beginning of May, Siler City's average high-temperature sees a minor increase, transitioning from a pleasant 70.7°F (21.5°C) in April to a moderately hot 78.6°F (25.9°C). The average temperature drops to a refreshing 59°F (15°C) during the night in the month of May.Humidity
The average relative humidity in May is 76%.Rainfall
The month with the most rainfall is May, when the rain falls for 16.3 days and typically aggregates up to 3.43" (87mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Siler City, the average length of the day in May is 14h and 4min.On the first day of May, sunrise is at 6:24 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 8:28 pm EDT.
Sunshine
In May, the average sunshine is 9.5h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.Note: In May, the maximum UV index of 6 suggests this advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. 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
Average temperature in May
Siler City, NC
- Average high temperature in May: 78.6°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 (47.8°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 (31.8°F).
Average pressure in May
Siler City, NC
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in May
Siler City, NC
- Average wind speed in May: 6mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in May
Siler City, NC
- Average humidity in May: 76%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (71%).
Average rainfall in May
Siler City, NC
- Average rainfall in May: 3.43"
The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is October (1.85").
Average rainfall days in May
Siler City, NC
- Average rainfall days in May: 16.3 days
The month with the highest number of rainy days is August (17.3 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in May
Siler City, NC
- Average snowfall in May: 0"
The month with the highest snowfall is January (1.97").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Siler City, NC
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.3 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
Siler City, NC
- Average daylight in May: 14h and 6min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in May: 9h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in May
Siler City, NC
- Average sunshine days in May: 13.2 days
The months with the most sunshine days are October and November (20.5 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in May
Siler City, NC
- 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
Siler City, NC
- Average cloud cover in May: 39
The months with the most cloud cover are February, March and December (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in May
Siler City, NC
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
