July weather forecastLong Island, VA
July
Weather in July
July in Long Island, Virginia, is a hot summer month, with an average temperature fluctuating between 89.1°F (31.7°C) and 66.6°F (19.2°C).Temperature
In Long Island, temperatures reach their average annual highs in July, measuring 89.1°F (31.7°C) and a minimum average of 66.6°F (19.2°C).Heat index
The heat index value during July is computed to be a very hot 102.2°F (39°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.Be aware that heat index ratings are designed for shaded locations and minor breezes. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. 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 hold particular significance for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
With an average relative humidity of 69%, July is the least humid month.Rainfall
In July, the rain falls for 16.7 days. Throughout July, 1.97" (50mm) of precipitation is accumulated. Throughout the year, there are 158 rainfall days, and 30.55" (776mm) of precipitation is accumulated.Snowfall
In Long Island, snow does not fall in May through September.Daylight
The average length of the day in July is 14h and 25min.On the first day of July, sunrise is at 6:00 am and sunset at 8:40 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 8:24 pm EDT.
Sunshine
July has the most sunshine of the year in Long Island, with an average of 10.7h of sunshine.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A typical high UV index of 6 in July suggests the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Long Island, VA
- Average high temperature in July: 89.1°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (43.5°F).
- Average low temperature in July: 66.6°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).
Average pressure in July
Long Island, VA
- Average pressure in July: 30"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in July
Long Island, VA
- Average wind speed in July: 4.5mph
The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in July
Long Island, VA
- Average humidity in July: 69%
The months with the highest relative humidity are May and December (76%).
The month with the lowest relative humidity is July (69%).
Average rainfall in July
Long Island, VA
- Average rainfall in July: 1.97"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in July
Long Island, VA
- Average rainfall days in July: 16.7 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in July
Long Island, VA
- Average snowfall in July: 0"
The month with the highest snowfall is January (2.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
Long Island, VA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (3.9 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
Long Island, VA
- Average daylight in July: 14h and 24min
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 42min).
- Average sunshine in July: 10h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in July
Long Island, VA
- Average sunshine days in July: 11.8 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (11 days).
Average UV index in July
Long Island, VA
- 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 and December (UV index 2).
Average cloud cover in July
Long Island, VA
- Average cloud cover in July: 30
The month with the most cloud cover is March (Cloud cover 43).
The months with the least cloud cover are June and July (Cloud cover 30).
Average visibility in July
Long Island, VA
- Average visibility in July: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
