July weather forecastSaint Marys, WV

July

Weather in July

July, the same as June, is a moderately hot summer month in Saint Marys, West Virginia, with an average temperature varying between 85.5°F (29.7°C) and 63.1°F (17.3°C).

Temperature

Saint Marys records the warmest temperatures in July, averaging a high of 85.5°F (29.7°C) and a low of 63.1°F (17.3°C).

Heat index

Throughout July, the heat index is computed to be a torrid 96.8°F (36°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

The months with the lowest humidity in Saint Marys are July and August, with an average relative humidity of 76%.

Rainfall

In Saint Marys, in July, during 17.9 rainfall days, 2.99" (76mm) of precipitation is typically accumulated. In Saint Marys, West Virginia, during the entire year, the rain falls for 177.1 days and collects up to 33.39" (848mm) of precipitation.

Snowfall

May through September are months without snowfall in Saint Marys.

Daylight

The average length of the day in July in Saint Marys, West Virginia, is 14h and 37min.
On the first day of the month, sunrise is at 6:02 am and sunset at 8:55 pm. On the last day of July, sunrise is at 6:24 am and sunset at 8:37 pm EDT.

Sunshine

The average sunshine in July in Saint Marys is 9.8h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Saint Marys. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In July, a daily maximum UV index of 6 leads to the following instructions:
Fend off overexposure. Sun protection is vital. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.

Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Saint Marys, West Virginia, records the warmest temperatures in July, averaging a high of 85.5°F (29.7°C) and a low of 63.1°F (17.3°C).

In July, in Saint Marys, the average high-temperature is 85.5°F (29.7°C), and the average low-temperature is 63.1°F (17.3°C). In July, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, is computed to be 96.8°F (36°C).

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

In Saint Marys, West Virginia, the average relative humidity in July is 76%.

In Saint Marys, in July, it is raining for 17.9 days, with typically 2.99" (76mm) of accumulated precipitation.

In Saint Marys, West Virginia, snow does not fall in May through September.

The average day length in July is 14h and 37min.

In July, on the first day of the month, sunrise is at 6:02 am and sunset at 8:55 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 8:37 pm EDT.

In July, the average sunshine duration is 9.8h.

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

In July, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J July A S O N D

Jun

July

Aug

Average high temperature

81.3°F

85.5°F

83.8°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

5.5mph

4.7mph

4.6mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

17.3

17.9

15.4

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

10.8

13.3

Average UV index

Average cloud cover

Average visibility

Average temperature in July
Saint Marys, WV

Average high temperature in July: 85.5°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (36.1°F).

Average low temperature in July: 63.1°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

Average pressure in July
Saint Marys, WV

Average pressure in July: 29.99"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in July
Saint Marys, WV

Average wind speed in July: 4.3mph

The windiest month (with the highest average wind speed) is February (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in July
Saint Marys, WV

Average humidity in July: 76%

The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are July and August (76%).

Average rainfall in July
Saint Marys, WV

Average rainfall in July: 2.99"

The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is September (2.05").

Average rainfall days in July
Saint Marys, WV

Average rainfall days in July: 17.9 days

The month with the highest number of rainy days is May (20 days).
The month with the least rainy days is November (10.7 days).

Average snowfall in July
Saint Marys, WV

Average snowfall in July: 0"

The month with the highest snowfall is February (4.84").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Saint Marys, WV

Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (14 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Saint Marys, WV

Average daylight in July: 14h and 36min

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: 9h and 48min

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 24min).

Average sunshine days in July
Saint Marys, WV

Average sunshine days in July: 10.8 days

The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is May (8.5 days).

Average UV index in July
Saint Marys, WV

Average UV index in July: 6

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