![]() when UV radiation is most intense keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. Note: The daily maximum UV index of 6 in July interpret into the following advice: A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals. UV indexThe months with the highest UV index in Vienna are May through August, with an average maximum UV index of 6. SunshineWith an average of 10.8h of sunshine, July has the most sunshine of the year in Vienna. On the last day of the month, sunrise is at 6:09 am and sunset at 8:21 pm EDT. On the first day of July, sunrise is at 5:47 am and sunset at 8:38 pm. DaylightIn Vienna, the average length of the day in July is 14h and 35min. SnowfallIn Vienna, snow does not fall in May through October. Throughout the year, in Vienna, Virginia, there are 162 rainfall days, and 31.65" (804mm) of precipitation is accumulated. Rainfall In Vienna, in July, during 17 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. HumidityWith an average relative humidity of 71%, July is the least humid month. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. WEATHER IN VIENNA IN JULY IN FAHRENHEIT SKINAnd also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity. Young children are generally more endangered than adults, as they usually less sweat. Heat index values are particularly important for children. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. This effect is individual, with diverse people perceiving weather differently for numerous reasons (pregnancy, metabolic differences, differences in body mass, height, and shape), and activity. Note: The heat index, also known as 'felt air temperature', 'real feel', 'apparent temperature', or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees. Take into consideration that the heat index values are calculated for shade and light wind conditions. Heatstroke may occur with lengthy activity. Take special precautions - heat exhaustion and heat cramps are expected. Heat indexThe average heat index in July is appraised at a torrid 100.4☏ (38☌). TemperatureJuly is the warmest month, with an average high-temperature of 88☏ (31.1☌) and an average low-temperature of 68.4☏ (20.2☌). July in Vienna, Virginia, is a tropical summer month, with an average temperature ranging between min 68.4☏ (20.2☌) and max 88☏ (31.1☌). ![]()
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