July weather forecast
Charleston, WV

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The calm Kanawha River in front of Charleston, West Virginia, reflecting the city in its water
The calm Kanawha River in front of Charleston, West Virginia, reflecting the city in its water

Weather in July

July stands as the warmest month in Charleston with an average high temperature reaching up to 85.6°F (29.8°C), presenting locals with the peak of summer. Despite the high temperatures, the city manages to maintain relative comfort with breezy conditions and occasional rainfall. West Virginia's capital city experiences long sunny days, matched with abundant daylight hours. With mid-summer in full swing, July in Charleston is warm, sunny, and delightfully vibrant.

Temperature

The temperatures reach their highest averages in July, with highs of 85.6°F (29.8°C) and lows of 63.3°F (17.4°C).

Heat index

In July, the heat index is computed to be a very hot 96.8°F (36°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'apparent temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. 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 are primarily vital for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

The months with the lowest humidity are June through August and November, with an average relative humidity of 76%.

Rainfall

In Charleston, in July, during 18 rainfall days, 2.76" (70mm) of precipitation is typically accumulated. Throughout the year, in Charleston, West Virginia, there are 180.4 rainfall days, and 34.06" (865mm) of precipitation is accumulated.

Snowfall

In Charleston, snow does not fall in June through September.

Daylight

In July, the average length of the day is 14h and 32min.
On the first day of the month, sunrise is at 6:06 am and sunset at 8:54 pm. On the last day of July, in Charleston, West Virginia, sunrise is at 6:28 am and sunset at 8:37 pm EDT.

Sunshine

In July, the average sunshine in Charleston is 9.8h.

UV index

The months with the highest UV index in Charleston are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 6 in July translates into these instructions:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest in Charleston?

In Charleston, July is the warmest month, with temperatures averaging a high of 85.6°F (29.8°C) and a low of 63.3°F (17.4°C).

How hot is July in Charleston?

The high-temperature, in July, in Charleston, records 85.6°F (29.8°C), while the low-temperature is 63.3°F (17.4°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in July is computed to be 96.8°F (36°C).

What are the least humid months in Charleston?

The months with the lowest humidity are June through August and November, with an average relative humidity of 76%.

What is the average humidity in July in Charleston?

The average relative humidity in July in Charleston, West Virginia, is 76%.

How much does it rain in Charleston in July?

In Charleston, in July, during 18 rainfall days, 2.76" (70mm) of precipitation is typically accumulated.

When it does not snow in Charleston?

In Charleston, West Virginia, snow does not fall in June through September.

What is the average length of the day in July in Charleston?

In Charleston, the average day length in July is 14h and 32min.

What time are sunrise and sunset in July in Charleston?

In July, on the first day of the month, sunrise is at 6:06 am and sunset at 8:54 pm. On the last day of the month, in Charleston, sunrise is at 6:28 am and sunset at 8:37 pm EDT.

How long on average sun shines in July in Charleston?

In Charleston, West Virginia, the average sunshine duration in July is 9.8h.

What are the months with the highest UV index in Charleston?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index intensity in July in Charleston?

In Charleston, West Virginia, the average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Charleston, WV

Average temperature in July - Charleston, WV
  • Average high temperature in July: 85.6°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in July: 63.3°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).

Average pressure in July
Charleston, WV

Average pressure in July - Charleston, WV
  • Average pressure in July: 30.01"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in July
Charleston, WV

Average wind speed in July - Charleston, WV
  • Average wind speed in July: 4.3mph

The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is August (4mph).

Average humidity in July
Charleston, WV

Average humidity in July - Charleston, WV
  • Average humidity in July: 76%

The months with the highest relative humidity are January and February (82%).
The months with the lowest relative humidity are June, July, August and November (76%).

Average rainfall in July
Charleston, WV

Average rainfall in July - Charleston, WV
  • Average rainfall in July: 2.76"

The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is September (1.81").

Average rainfall days in July
Charleston, WV

Average rainfall days in July - Charleston, WV
  • Average rainfall days in July: 18 days

The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is November (11 days).

Average snowfall in July
Charleston, WV

Average snowfall in July - Charleston, WV
  • Average snowfall in July: 0"

The month with the highest snowfall is January (5.51").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Charleston, WV

Average snowfall days in July - Charleston, WV
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (14.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Charleston, WV

Average daylight in July / Average sunshine in July - Charleston, WV
  • Average daylight in July: 14h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in July: 9h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in July
Charleston, WV

Average sunshine days in July - Charleston, WV
  • Average sunshine days in July: 11.3 days

The months with the most sunshine days are October and November (16.5 days).
The month with the least sunshine days is February (8.4 days).

Average UV index in July
Charleston, WV

Average UV index in July - Charleston, WV
  • Average UV index in July: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in July
Charleston, WV

Average cloud cover in July - Charleston, WV
  • Average cloud cover in July: 37

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in July
Charleston, WV

Average visibility in July - Charleston, WV
  • Average visibility in July: 5mi

The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).

Charleston, West Virginia, USA

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