July weather forecast and climate
Charleston, West VA

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
July, like June, in Charleston, West Virginia, is another warm summer month, with average temperature fluctuating between 85.6°F (29.8°C) and 63.3°F (17.4°C).

Temperature

The warmest month is July, with an average high-temperature of 85.6°F (29.8°C) and an average low-temperature of 63.3°F (17.4°C).

Heat index

The average heat index in July is appraised at a very hot 96.8°F (36°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'feels like', 'real feel', or 'felt air temperature', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is individual, with diverse people perceiving weather differently for numerous reasons (differences in body mass, height, and shape, wind, metabolic differences), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 99.5°F (37.5°C) to 100.9°F (38.3°C), thermal conditions are potentially life-threatening.

Humidity

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

Rainfall

In Charleston, in July, it is raining for 18 days, with typically 2.76" (70mm) of accumulated precipitation. In Charleston, during the entire year, the rain falls for 180.4 days and collects up to 34.06" (865mm) of precipitation.

Snowfall

In Charleston snow does not fall in June through September.

Daylight

In July, the average length of the day is 14.5h.

Sunshine

The average sunshine in Charleston is 9.8h.

UV index

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 the exposure to the Sun's UV radiation for average individuals.
Note: In July, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the warmest month in Charleston?

The warmest month in Charleston is July, with an average high-temperature of 85.6°F (29.8°C) and an average low-temperature of 63.3°F (17.4°C).

What is the temperature in July in Charleston?

In Charleston, West Virginia, in July, the average high-temperature is 85.6°F (29.8°C), and the average low-temperature is 63.3°F (17.4°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), that combines air temperature and relative humidity, in July is calculated to 96.8°F (36°C).

What are the least humid months in Charleston?

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

What is the average humidity in July in Charleston?

In July, the average relative humidity is 76%.

How many days does it rain in July in Charleston?

In Charleston, West Virginia, in July, it is raining for 18 days, with typically 2.76" (70mm) of accumulated precipitation.

When it does not snow in Charleston?

June through September are months without snowfall in Charleston.

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

The average length of the day in July is 14.5h.

How long on average sun shines in July in Charleston?

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

When is the highest UV index in Charleston?

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

What is the UV index intensity in July in Charleston?

The average daily maximum UV index in July is 6. A UV Index of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV rays.
Average temperature in July - Charleston, West VA
  • 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, West VA
  • Average pressure in July: 30.01"

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

Average wind speed in July - Charleston, West VA
  • 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, West VA
  • Average humidity in July: 76%

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

Average rainfall in July - Charleston, West VA
  • 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, West VA
  • 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, West VA
  • Average snowfall in July: 0"

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

Average snowfall days in July - Charleston, West VA
  • Average snowfall days in July: 0 days

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

Average daylight in July / Average sunshine in July - Charleston, West VA
  • Average daylight in July: 14.5h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in July: 9.8h

The month with the most sunshine is August (Average sunshine: 10.2h).
The month with the least sunshine is January (Average sunshine: 3.7h).

Average sunshine days in July - Charleston, West VA
  • Average sunshine days in July: 11.3 days

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, West VA
  • Average UV index in July: 6

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

Average cloud cover in July - Charleston, West VA
  • 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, West VA
  • Average visibility in July: 5mi

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