July weather forecastMount Hermon Heights, VA
July
Weather in July
July in Mount Hermon Heights, Virginia, is a hot summer month, with an average temperature varying between 69.3°F (20.7°C) and 90.1°F (32.3°C).Temperature
With average temperatures fluctuating between a high of 90.1°F (32.3°C) and a low of 69.3°F (20.7°C), July stands out as the warmest month.Heat index
The average heat index in July is appraised at an extremely hot 105.8°F (41°C). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.It is essential to grasp that the heat index's numbers are for shade and light wind settings. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is achieved by amalgamating air temperature with the relative humidity readings. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.
Humidity
With an average relative humidity of 69%, July is the least humid month.Rainfall
In Mount Hermon Heights, during July, the rain falls for 15.4 days and regularly aggregates up to 2.52" (64mm) of precipitation. Throughout the year, there are 152.8 rainfall days, and 27.09" (688mm) of precipitation is accumulated.Snowfall
In Mount Hermon Heights, Virginia, snow does not fall in May through October.Daylight
In Mount Hermon Heights, Virginia, the average length of the day in July is 14h and 28min.On the first day of the month, sunrise is at 5:51 am and sunset at 8:35 pm. On the last day of July, sunrise is at 6:13 am and sunset at 8:19 pm EDT.
Sunshine
With an average of 10.6h of sunshine, July has the most sunshine of the year.UV index
In July, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily high UV index of 6 in July leads to these guidelines:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Mount Hermon Heights, VA
- Average high temperature in July: 90.1°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (43.9°F).
- Average low temperature in July: 69.3°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).
Average pressure in July
Mount Hermon Heights, VA
- Average pressure in July: 29.97"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
Mount Hermon Heights, VA
- Average wind speed in July: 5.3mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in July
Mount Hermon Heights, VA
- Average humidity in July: 69%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (69%).
Average rainfall in July
Mount Hermon Heights, VA
- Average rainfall in July: 2.52"
The wettest month (with the highest rainfall) is August (2.83").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in July
Mount Hermon Heights, VA
- Average rainfall days in July: 15.4 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is November (9.2 days).
Average snowfall in July
Mount Hermon Heights, VA
- Average snowfall in July: 0"
The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in July
Mount Hermon Heights, VA
- Average snowfall days in July: 0 days
The months with the highest number of snowfall days are January and February (3.8 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
Mount Hermon Heights, VA
- Average daylight in July: 14h and 30min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in July: 10h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in July
Mount Hermon Heights, VA
- Average sunshine days in July: 14 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in July
Mount Hermon Heights, VA
- Average UV index in July: 6
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in July
Mount Hermon Heights, VA
- Average cloud cover in July: 32
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in July
Mount Hermon Heights, VA
- Average visibility in July: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are May and December (5mi).
