July weather forecastSummerville, SC
July
Weather in July
July is typically the warmest month in Summerville with temperatures often reaching the peak average of 91.2°F (32.9°C) during the day. July carries the heaviest rainfall of the year with an average precipitation of 2.09" (53mm). The humidity levels remain relatively high, aligning with the persistent summer warmth. The cloudy sky environment, coupled with robust wind activity, makes July an oasis for those who love summer storms. Despite the heavy downpours, the ample daylight hours ensure that daily routines and activities continue unhindered.Temperature
July registers as the month with the highest average temperatures, reaching 91.2°F (32.9°C) at its peak and 74.7°F (23.7°C) at the lowest.Heat index
July's average heat index is computed to be a burning hot 113°F (45°C). Beware: Heat exhaustion along with heat cramps are on the cards. Heatstroke could result from sustained physical activity.It is important to note that the heat index values are for shaded areas and light wind scenarios. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Rising body temperatures due to excess heat retention could signify impending heat disorders.
Humidity
The average relative humidity in July is 74%.Rainfall
In Summerville, South Carolina, in July, during 16.5 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. In Summerville, during the entire year, the rain falls for 120.6 days and collects up to 11.18" (284mm) of precipitation.Snowfall
In Summerville, snow does not fall in March through December.Daylight
The average length of the day in July in Summerville is 14h and 5min.On the first day of the month, sunrise is at 6:16 am and sunset at 8:33 pm. On the last day of July, sunrise is at 6:33 am and sunset at 8:20 pm EDT.
Sunshine
July has the most sunshine of the year, with an average of 10.9h of sunshine.UV index
The months with the highest UV index in Summerville are May through August, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.Note: In July, the maximum UV index of 7 translates into these guidelines:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Summerville, SC
- Average high temperature in July: 91.2°F
The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (56.8°F).
- Average low temperature in July: 74.7°F
The month with the highest average low temperature is July (74.7°F).
The coldest month (with the lowest average low temperature) is January (40.1°F).
Average pressure in July
Summerville, SC
- Average pressure in July: 30"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 July
Summerville, SC
- Average wind speed in July: 5.4mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in July
Summerville, SC
- Average humidity in July: 74%
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are January and March (72%).
Average rainfall in July
Summerville, SC
- Average rainfall in July: 1.14"
The wettest month (with the highest rainfall) is August (2.09").
The driest month (with the least rainfall) is January (0.28").
Average rainfall days in July
Summerville, SC
- Average rainfall days in July: 16.5 days
The month with the highest number of rainy days is August (18.3 days).
The month with the least rainy days is January (5.7 days).
Average snowfall in July
Summerville, SC
- Average snowfall in July: 0"
The months with the highest snowfall are January and February (0.04").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in July
Summerville, SC
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average daylight in July /
Average sunshine in July
Summerville, SC
- Average daylight in July: 14h and 6min
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 July: 10h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in July
Summerville, SC
- Average sunshine days in July: 9.3 days
The month with the most sunshine days is January (23.6 days).
The month with the least sunshine days is August (7.4 days).
Average UV index in July
Summerville, SC
- Average UV index in July: 7
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in July
Summerville, SC
- Average cloud cover in July: 29
The months with the most cloud cover are February and December (Cloud cover 42).
The months with the least cloud cover are July and October (Cloud cover 29).
Average visibility in July
Summerville, 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).
