July weather forecast
Chester, SD

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Weather in July

July, the same as June, is another warm summer month in Chester, South Dakota, with an average temperature ranging between max 81.9°F (27.7°C) and min 62.2°F (16.8°C).

Temperature

July, recording an average high temperature of 81.9°F (27.7°C) and a low temperature of 62.2°F (16.8°C), is Chester's warmest month.

Heat index

In July, the average heat index is computed to be a tropical 87.8°F (31°C). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. 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. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. 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.

Humidity

In Chester, the average relative humidity in July is 75%.

Rainfall

In Chester, during July, the rain falls for 13.9 days and regularly aggregates up to 2.68" (68mm) of precipitation. Throughout the year, there are 116.4 rainfall days, and 21.38" (543mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in July in Chester is 15h and 5min.
On the first day of the month, sunrise is at 5:49 am and sunset at 9:13 pm. On the last day of July, in Chester, South Dakota, sunrise is at 6:16 am and sunset at 8:52 pm CDT.

Sunshine

With an average of 10.7h of sunshine, July has the most sunshine of the year.

UV index

The months with the highest UV index in Chester are June and July, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In July, the UV index of 6 transforms into the following advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month in Chester?

July, on average, is the warmest month, registering a high temperature of 81.9°F (27.7°C) and a low of 62.2°F (16.8°C).

What are the temperatures in Chester in July?

In Chester, in July, the average high-temperature is 81.9°F (27.7°C), and the average low-temperature is 62.2°F (16.8°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in July is computed to be 87.8°F (31°C).

What is the average humidity in July in Chester?

In July, the average relative humidity in Chester, South Dakota, is 75%.

How much does it rain in Chester in July?

In July, in Chester, the rain falls for 13.9 days. Throughout July, 2.68" (68mm) of precipitation is accumulated.

When it does not snow in Chester?

In Chester, South Dakota, snow does not fall in June through September.

How many hours of daylight does Chester have in July?

In Chester, the average day length in July is 15h and 5min.

What time are sunrise and sunset in July in Chester?

In July, on the first day of the month, sunrise is at 5:49 am and sunset at 9:13 pm. On the last day of the month, in Chester, sunrise is at 6:16 am and sunset at 8:52 pm CDT.

What month has the most sunshine in Chester?

With an average of 10.7h of sunshine, July has the most sunshine of the year in Chester, South Dakota.

How long on average sun shines in July in Chester?

In July, the average sunshine duration is 10.7h.

What are the months with the highest UV index in Chester?

June and July, with an average maximum UV index of 6, are months with the highest UV index in Chester.

What is the UV index reading in July in Chester?

The average daily maximum UV index in July in Chester, South Dakota, is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Chester, SD

Average temperature in July - Chester, SD
  • Average high temperature in July: 81.9°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (22.3°F).

  • Average low temperature in July: 62.2°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).

Average pressure in July
Chester, SD

Average pressure in July - Chester, SD
  • Average pressure in July: 29.93"Hg

The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in July
Chester, SD

Average wind speed in July - Chester, SD
  • Average wind speed in July: 8.2mph

The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest month (with the lowest average wind speed) is July (8.2mph).

Average humidity in July
Chester, SD

Average humidity in July - Chester, SD
  • Average humidity in July: 75%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (67%).

Average rainfall in July
Chester, SD

Average rainfall in July - Chester, SD
  • Average rainfall in July: 2.68"

The wettest month (with the highest rainfall) is June (3.27").
The driest month (with the least rainfall) is January (0.63").

Average rainfall days in July
Chester, SD

Average rainfall days in July - Chester, SD
  • Average rainfall days in July: 13.9 days

The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (2.8 days).

Average snowfall in July
Chester, SD

Average snowfall in July - Chester, SD
  • Average snowfall in July: 0"

The month with the highest snowfall is February (4.29").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Chester, SD

Average snowfall days in July - Chester, SD
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is December (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Chester, SD

Average daylight in July / Average sunshine in July - Chester, SD
  • Average daylight in July: 15h and 1min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in July: 10h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in July
Chester, SD

Average sunshine days in July - Chester, SD
  • Average sunshine days in July: 14.4 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is June (10.6 days).

Average UV index in July
Chester, SD

Average UV index in July - Chester, SD
  • Average UV index in July: 6

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in July
Chester, SD

Average cloud cover in July - Chester, SD
  • Average cloud cover in July: 27

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in July
Chester, SD

Average visibility in July - Chester, SD
  • Average visibility in July: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

Chester, South Dakota, USA

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