May weather forecastOld Joe, SC
May
Weather in May
The last month of the spring, May, is also a moderately hot month in Old Joe, South Carolina, with an average temperature ranging between max 80.2°F (26.8°C) and min 64.9°F (18.3°C).Temperature
Observing a minor shift, the average high-temperature during May adjusts from April's moderately hot 73.9°F (23.3°C) to a still warm 80.2°F (26.8°C). Old Joe witnesses a consistent average low-temperature of 64.9°F (18.3°C) throughout May.Humidity
In Old Joe, the average relative humidity in May is 77%.Rainfall
In Old Joe, in May, during 16.8 rainfall days, 3.35" (85mm) of precipitation is typically accumulated. In Old Joe, during the entire year, the rain falls for 179.5 days and collects up to 40.79" (1036mm) of precipitation.Snowfall
In Old Joe, snow does not fall in March through November.Daylight
In Old Joe, the average length of the day in May is 13h and 53min.On the first day of the month, sunrise is at 6:30 am and sunset at 8:01 pm. On the last day of May, sunrise is at 6:11 am and sunset at 8:22 pm EDT.
Sunshine
In Old Joe, the average sunshine in May is 10.2h.UV index
In May, the average daily maximum UV index in Old Joe is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index, 6 during May, leads to the following recommendations:
Fend off overexposure. Sun protection is vital. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Old Joe, SC
- Average high temperature in May: 80.2°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 (55.8°F).
- Average low temperature in May: 64.9°F
The month with the highest average low temperature is July (74.8°F).
The coldest month (with the lowest average low temperature) is January (40.8°F).
Average pressure in May
Old Joe, SC
- Average pressure in May: 30.03"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
Old Joe, SC
- Average wind speed in May: 6.8mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in May
Old Joe, SC
- Average humidity in May: 77%
The months with the highest relative humidity are August and December (78%).
The months with the lowest relative humidity are January and March (74%).
Average rainfall in May
Old Joe, SC
- Average rainfall in May: 3.35"
The wettest month (with the highest rainfall) is August (6.46").
The driest month (with the least rainfall) is January (1.46").
Average rainfall days in May
Old Joe, SC
- Average rainfall days in May: 16.8 days
The months with the highest number of rainy days are July and August (23.2 days).
The month with the least rainy days is November (8.9 days).
Average snowfall in May
Old Joe, SC
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Old Joe, SC
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (0.5 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
Old Joe, SC
- Average daylight in May: 13h and 54min
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: 10h and 12min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in May
Old Joe, SC
- Average sunshine days in May: 11.3 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is July (5.5 days).
Average UV index in May
Old Joe, 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 and December (UV index 3).
Average cloud cover in May
Old Joe, SC
- Average cloud cover in May: 30
The months with the most cloud cover are February and December (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in May
Old Joe, 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).





