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

July proves to be the warmest month, recording an average peak temperature of 86.5°F (30.3°C) and a minimum temperature of 64°F (17.8°C).

Heat index

The heat index for July is appraised at a very hot 98.6°F (37°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

July is the least humid month, with an average relative humidity of 73%.

Rainfall

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

Sunshine

July has the most sunshine of the year, with an average of 10.7h of sunshine.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.
Note: In July, a daily UV index of 6 turns into the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the hottest?

In Martinsburg, July is identified by the average highest temperatures, reaching a peak of 86.5°F (30.3°C) and a low of 64°F (17.8°C).

How hot does it get in July?

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

What is the least humid month?

July is the least humid month, with an average relative humidity of 73%.

What is the average humidity in July?

The average relative humidity in July is 73%.

What is the wettest month?

July is the month with the most rainfall. Rain falls for 12.8 days and accumulates 1.5" (38mm) of precipitation.

How many days does it rain in July?

In Martinsburg, during July, the rain falls for 12.8 days and regularly aggregates up to 1.5" (38mm) of precipitation.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Martinsburg have in July?

The average day length in July is 14h and 38min.

What time are sunrise and sunset in July?

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.

What month has the most sunshine?

With an average of 10.7h of sunshine, July has the most sunshine of the year.

How long on average sun shines in July?

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

What is the month with the highest UV index?

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

How high is the UV index in July?

In July, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Martinsburg, West Virginia, USA

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