Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
With average high temperatures of 89.1°F (31.7°C) and lows of 66.6°F (19.2°C), July is the warmest month.Heat index
In July, the heat index is computed to be a sweltering 102.2°F (39°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.Heat index guidelines indicate values are for light wind scenarios and shaded regions. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular significance for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.
Humidity
July is the least humid month in Altavista, with an average relative humidity of 69%.Rainfall
In July, the rain falls for 16.7 days. Throughout July, 1.97" (50mm) of precipitation is accumulated. In Altavista, during the entire year, the rain falls for 158 days and collects up to 30.55" (776mm) of precipitation.Snowfall
In Altavista, snow does not fall in May through September.Daylight
In Altavista, the average length of the day in July is 14h and 25min.On the first day of the month, sunrise is at 6:01 am and sunset at 8:41 pm. On the last day of July, sunrise is at 6:21 am and sunset at 8:25 pm EDT.
Sunshine
The month with the most sunshine in Altavista is July, 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 vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 6 during July translates into these guidelines:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the hottest in Altavista?
How hot is July in Altavista?
What is the least humid month in Altavista?
What is the average humidity in July in Altavista?
How many days does it rain in July in Altavista?
When it does not snow in Altavista?
What is the average length of the day in July in Altavista?
When is the sunrise / sunset in July in Altavista?
What month has the most sunshine in Altavista?
How long on average sun shines in July in Altavista?
When is the highest UV index in Altavista?
What is the UV index intensity in July in Altavista?
Average temperature in July
Altavista, 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
Altavista, 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
Altavista, 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
Altavista, 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
Altavista, 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
Altavista, 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
Altavista, 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
Altavista, 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
Altavista, VA
- Average daylight in July: 14h and 2min
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 4min
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
Altavista, 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
Altavista, 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
Altavista, 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
Altavista, 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).
Altavista, Virginia, USA
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