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 start of May brings a subtle shift in the average high-temperature, edging up from April's agreeable 73°F (22.8°C) to a warm 79.9°F (26.6°C). During the month of May, the temperature in Dekalb falls to an average of 62.4°F (16.9°C).Humidity
The most humid month in Dekalb is May, with an average relative humidity of 75%.Rainfall
In May, the rain falls for 11.6 days. Throughout May, 1.02" (26mm) of precipitation is accumulated. Throughout the year, in Dekalb, there are 116.1 rainfall days, and 11.42" (290mm) of precipitation is accumulated.Snowfall
March through December are months without snowfall in Dekalb.Daylight
In Dekalb, the average length of the day in May is 13h and 58min.On the first day of May in Dekalb, sunrise is at 6:31 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 8:29 pm EDT.
Sunshine
The average sunshine in May in Dekalb, South Carolina, 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 hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In May, the maximum UV index of 6 suggests these recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Dekalb?
What is the most humid month in Dekalb?
What is the average humidity in May in Dekalb?
How much does it rain in Dekalb in May?
When it does not snow in Dekalb?
What is the average length of the day in May in Dekalb?
What time are sunrise and sunset in May in Dekalb?
How many hours of sunshine does Dekalb have in May?
What is the UV index reading in May in Dekalb?
Average temperature in May
Dekalb, SC
- Average high temperature in May: 79.9°F
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (52.2°F).
- Average low temperature in May: 62.4°F
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (37.4°F).
Average pressure in May
Dekalb, SC
- Average pressure in May: 30.02"Hg
The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in May
Dekalb, SC
- Average wind speed in May: 7mph
The windiest months (with the highest average wind speed) are February and April (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in May
Dekalb, SC
- Average humidity in May: 75%
The month with the highest relative humidity is May (75%).
The months with the lowest relative humidity are January, March and November (70%).
Average rainfall in May
Dekalb, SC
- Average rainfall in May: 1.02"
The wettest month (with the highest rainfall) is August (1.42").
The driest month (with the least rainfall) is September (0.59").
Average rainfall days in May
Dekalb, SC
- Average rainfall days in May: 11.6 days
The month with the highest number of rainy days is July (13.8 days).
The month with the least rainy days is November (5.8 days).
Average snowfall in May
Dekalb, SC
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in May
Dekalb, SC
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and December (0 days).
Average daylight in May /
Average sunshine in May
Dekalb, 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 months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in May
Dekalb, SC
- Average sunshine days in May: 16.6 days
The month with the most sunshine days is October (23.9 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in May
Dekalb, SC
- Average UV index in May: 6
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in May
Dekalb, SC
- Average cloud cover in May: 34
The month with the most cloud cover is February (Cloud cover 41).
The months with the least cloud cover are June and October (Cloud cover 28).
Average visibility in May
Dekalb, 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).
Dekalb, South Carolina, USA
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