July weather forecast
Chamberlain, SD

July, the hottest month in Chamberlain, South Dakota, means enduring the peak of the summer heat with temperatures reaching up to 88°F (31.1°C). Comparatively, the month experiences substantially lesser rain with the city more likely to be sun-bathed. The long daylight hours, along with reduced humidity and rain, make for hot and dry weather conditions. Despite the scorching temperatures, the wind provides some respite with its calming effect. Shorts and sunscreens become necessities in this weather.

Temperature

Chamberlain records the warmest temperatures in July, averaging a high of 88°F (31.1°C) and a low of 66.2°F (19°C).

Heat index

July's mean heat index is evaluated at a sweltering 95°F (35°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
The standards for the heat index are set for locations in shade and under light breezes. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

In July, the average relative humidity is 60%.

Rainfall

In July, the rain falls for 11.8 days. Throughout July, 2.28" (58mm) of precipitation is accumulated. Throughout the year, there are 107.6 rainfall days, and 17.83" (453mm) of precipitation is accumulated.

Snowfall

In Chamberlain, snow does not fall in May through September.

Daylight

The average length of the day in July in Chamberlain is 15h and 4min.
On the first day of July in Chamberlain, sunrise is at 5:59 am and sunset at 9:23 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 9:01 pm CDT.

Sunshine

July has the most sunshine of the year, with an average of 11.4h of sunshine.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 in July interprets into the following recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.