July weather forecast
Martinsburg, WV

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Weather in July

July brings the height of the summer season to Martinsburg, showcasing the city bathed in brilliant sunlight. July distinguishes itself as the warmest month, with temperatures soaring to a high of 86.5°F (30.3°C). The heat fuels lively outdoors activities, while the sultry nights create a perfect setting for star-gazing. Though occasional showers provide a refreshing respite, they do little to dampen the lively, summer spirit in the city. Despite noticeably increased humidity, the light summer winds keep the climate enjoyable.

Temperature

Martinsburg's July weather reaches an average high of 86.5°F (30.3°C) and an average low of 64°F (17.8°C), making it the warmest month.

Heat index

July's mean heat index is evaluated at a very hot 98.6°F (37°C). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

The least humid month in Martinsburg is July, with an average relative humidity of 73%.

Rainfall

The month with the most rainfall in Martinsburg is July, when the rain falls for 12.8 days and typically aggregates up to 1.5" (38mm) of precipitation.

Snowfall

In Martinsburg, snow does not fall in May through October.

Daylight

In Martinsburg, the average length of the day in July is 14h and 38min.
On the first day of July in Martinsburg, sunrise is at 5:48 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 8:25 pm EDT.

Sunshine

With an average of 10.7h 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 the average person.
Note: The maximum UV index of 6 during July leads to these instructions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
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Frequently asked questions

What time of the year is the hottest in Martinsburg?

The month of July sees the average highest temperatures in Martinsburg, reaching 86.5°F (30.3°C) at the peak and 64°F (17.8°C) at the low.

How hot is it in Martinsburg in July?

In Martinsburg, 86.5°F (30.3°C) is the average high-temperature and 64°F (17.8°C) is the average low-temperature during July. The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in July is evaluated at 98.6°F (37°C).

What is the least humid month in Martinsburg?

The least humid month in Martinsburg is July, with an average relative humidity of 73%.

What is the average humidity in July in Martinsburg?

In July, the average relative humidity in Martinsburg, West Virginia, is 73%.

What is the wettest month in Martinsburg?

The month with the most rainfall in Martinsburg, West Virginia, is July, when the rain falls for 12.8 days and typically aggregates up to 1.5" (38mm) of precipitation.

How many days does it rain in July in Martinsburg?

In Martinsburg, West Virginia, in July, it is raining for 12.8 days, with typically 1.5" (38mm) of accumulated precipitation.

When it does not snow in Martinsburg?

In Martinsburg, snow does not fall in May through October.

How many hours of daylight does Martinsburg have in July?

In Martinsburg, the average day length in July is 14h and 38min.

When is the sunrise / sunset in July in Martinsburg?

In July, on the first day of the month, sunrise is at 5:48 am and sunset at 8:42 pm. On the last day of the month, in Martinsburg, West Virginia, sunrise is at 6:11 am and sunset at 8:25 pm EDT.

What month has the most sunshine in Martinsburg?

The month with the most sunshine is July, with an average of 10.7h of sunshine.

How many hours of sunshine does Martinsburg have in July?

In Martinsburg, the average sunshine duration in July is 10.7h.

When is the highest UV index in Martinsburg?

The months with the highest UV index in Martinsburg, West Virginia, are May through August, with an average maximum UV index of 6.

How high is the UV index in July in Martinsburg?

In July, the average daily maximum UV index in Martinsburg, West Virginia, is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to the Sun's UV radiation.
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
Martinsburg, WV

Average temperature in July - Martinsburg, WV
  • Average high temperature in July: 86.5°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in July: 64°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

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Average pressure in July
Martinsburg, WV

Average pressure in July - Martinsburg, WV
  • Average pressure in July: 29.98"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in July
Martinsburg, WV

Average wind speed in July - Martinsburg, WV
  • Average wind speed in July: 4.4mph

The windiest month (with the highest average wind speed) is March (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

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Average humidity in July
Martinsburg, WV

Average humidity in July - Martinsburg, WV
  • Average humidity in July: 73%

The months with the highest relative humidity are May, October and December (78%).
The month with the lowest relative humidity is July (73%).

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Average rainfall in July
Martinsburg, WV

Average rainfall in July - Martinsburg, WV
  • Average rainfall in July: 1.5"

The wettest month (with the highest rainfall) is July (1.5").
The driest month (with the least rainfall) is January (0.67").

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Average rainfall days in July
Martinsburg, WV

Average rainfall days in July - Martinsburg, WV
  • Average rainfall days in July: 12.8 days

The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is January (4.5 days).

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Average snowfall in July
Martinsburg, WV

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

The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in July
Martinsburg, WV

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

The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in July / Average sunshine in July - Martinsburg, WV
  • Average daylight in July: 14h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in July: 10h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

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Average sunshine days in July
Martinsburg, WV

Average sunshine days in July - Martinsburg, WV
  • Average sunshine days in July: 15.7 days

The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is May (14.6 days).

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Average UV index in July
Martinsburg, WV

Average UV index in July - Martinsburg, 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, November and December (UV index 2).

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Average cloud cover in July
Martinsburg, WV

Average cloud cover in July - Martinsburg, WV
  • Average cloud cover in July: 30

The months with the most cloud cover are January, March and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in July
Martinsburg, WV

Average visibility in July - Martinsburg, WV
  • Average visibility in July: 6mi

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

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Martinsburg, West Virginia, USA

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