July weather forecastSimpsonville, SC
July
Weather in July
Nothing screams summer in Simpsonville, South Carolina like the soaring temperatures of July. As the peak of summer, July boasts the highest temperature of the year with a maximum reaching up to 90.5°F (32.5°C). The days are long and nights warm, giving residents ample opportunity to enjoy summer activities both day and night. With only 28% cloud cover, clear nights make for star-gazing opportunities. This is the time of the year when residents beat the heat by taking a dip in the city's abundant water bodies.Temperature
July is the warmest month, with the temperature often reaching an average high of 90.5°F (32.5°C) and an average low of 69.1°F (20.6°C).Heat index
The average heat index in July is calculated to be a blisteringly hot 107.6°F (42°C). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.Metrics for the heat index primarily focus on shaded spots and light wind conditions. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.
Humidity
July is the least humid month, with an average relative humidity of 69%.Rainfall
In Simpsonville, during July, the rain falls for 17.8 days and regularly aggregates up to 2.72" (69mm) of precipitation. Throughout the year, there are 163.9 rainfall days, and 35.51" (902mm) of precipitation is accumulated.Snowfall
In Simpsonville, snow does not fall in April through October.Daylight
In July, the average length of the day is 14h and 13min.On the first day of the month, sunrise is at 6:19 am and sunset at 8:46 pm. On the last day of July, sunrise is at 6:38 am and sunset at 8:31 pm EDT.
Sunshine
With an average of 11.1h of sunshine, July has the most sunshine of the year.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 6 in July interprets into the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Simpsonville, SC
- Average high temperature in July: 90.5°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 (49.6°F).
- Average low temperature in July: 69.1°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (33.6°F).
Average pressure in July
Simpsonville, SC
- Average pressure in July: 30.01"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 July
Simpsonville, SC
- Average wind speed in July: 4.8mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in July
Simpsonville, SC
- Average humidity in July: 69%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (69%).
Average rainfall in July
Simpsonville, SC
- Average rainfall in July: 2.72"
The wettest month (with the highest rainfall) is December (4.09").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in July
Simpsonville, SC
- Average rainfall days in July: 17.8 days
The month with the highest number of rainy days is August (17.9 days).
The month with the least rainy days is October (9.6 days).
Average snowfall in July
Simpsonville, SC
- Average snowfall in July: 0"
The month with the highest snowfall is December (1.69").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in July
Simpsonville, SC
- Average snowfall days in July: 0 days
The months with the highest number of snowfall days are January and February (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in July /
Average sunshine in July
Simpsonville, SC
- Average daylight in July: 14h and 12min
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 July: 11h and 6min
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 24min).
Average sunshine days in July
Simpsonville, SC
- Average sunshine days in July: 10.7 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (10.7 days).
Average UV index in July
Simpsonville, SC
- Average UV index in July: 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 July
Simpsonville, SC
- Average cloud cover in July: 28
The months with the most cloud cover are February, March and December (Cloud cover 41).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in July
Simpsonville, SC
- Average visibility in July: 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).
