May weather forecastTrenton, SC
May
Weather in May
The last month of the spring, May, is also a moderately hot month in Trenton, South Carolina, with an average temperature varying between 81.1°F (27.3°C) and 62.2°F (16.8°C).Temperature
The arrival of May introduces a minor uplift in high-temperatures, adjusting from a moderately hot 73.9°F (23.3°C) in April to a still warm 81.1°F (27.3°C). May sees the temperature falling to a mean low of 62.2°F (16.8°C).Heat index
During May, the heat index is calculated to be a tropical 86°F (30°C). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.Note that heat index values are valued for light wind and location in the shade. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is achieved by amalgamating air temperature with the relative humidity readings. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Humidity
In Trenton, the average relative humidity in May is 74%.Rainfall
In Trenton, in May, during 14.8 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. Throughout the year, there are 149.8 rainfall days, and 28.58" (726mm) of precipitation is accumulated.Snowfall
April through November are months without snowfall.Daylight
In May, the average length of the day in Trenton is 13h and 55min.On the first day of the month, sunrise is at 6:37 am and sunset at 8:11 pm. On the last day of May, sunrise is at 6:17 am and sunset at 8:32 pm EDT.
Sunshine
In Trenton, the average sunshine in May is 10h.UV index
The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The average daily UV index of 6 in May transforms into the following instructions:
Shield from overexposure. Defense against sun-related harm is required. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Trenton, SC
- Average high temperature in May: 81.1°F
The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (52.7°F).
- Average low temperature in May: 62.2°F
The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (36.9°F).
Average pressure in May
Trenton, SC
- Average pressure in May: 30.03"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 (29.98"Hg).
Average wind speed in May
Trenton, SC
- Average wind speed in May: 6.7mph
The windiest months (with the highest average wind speed) are February and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in May
Trenton, SC
- Average humidity in May: 74%
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (70%).
Average rainfall in May
Trenton, SC
- Average rainfall in May: 2.8"
The wettest month (with the highest rainfall) is December (3.03").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in May
Trenton, SC
- Average rainfall days in May: 14.8 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in May
Trenton, SC
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.59").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Trenton, SC
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are January and February (0.4 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
Trenton, SC
- Average daylight in May: 13h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in May: 10h and 0min
The months with the most sunshine are June and July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in May
Trenton, SC
- Average sunshine days in May: 14.7 days
The month with the most sunshine days is October (21.8 days).
The month with the least sunshine days is July (11.2 days).
Average UV index in May
Trenton, SC
- Average UV index in May: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in May
Trenton, SC
- Average cloud cover in May: 33
The month with the most cloud cover is December (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility in May
Trenton, 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).





