July weather forecast
White River, SD

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Weather in July

July is a hot summer month in White River, South Dakota, with an average temperature fluctuating between 88°F (31.1°C) and 66.7°F (19.3°C).

Temperature

The warmest period tends to be July, when average temperatures fluctuate between a high of 88°F (31.1°C) and a low of 66.7°F (19.3°C).

Heat index

The heat index for July is estimated at a very hot 95°F (35°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

The average relative humidity in July is 58%.

Rainfall

In White River, South Dakota, in July, it is raining for 12.9 days, with typically 2.09" (53mm) of accumulated precipitation. Throughout the year, in White River, there are 103.9 rainfall days, and 16.85" (428mm) of precipitation is accumulated.

Snowfall

In White River, snow does not fall in June through September.

Daylight

In July, the average length of the day in White River is 15h and 2min.
On the first day of the month, sunrise is at 6:06 am and sunset at 9:28 pm. On the last day of July, sunrise is at 6:32 am and sunset at 9:06 pm CDT.

Sunshine

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

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 6 during July leads to these instructions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
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Frequently asked questions

What month is the hottest in White River?

In White River, July is known for its average highest temperatures, reaching a high of 88°F (31.1°C) and a low of 66.7°F (19.3°C).

How hot is it in White River in July?

An average high-temperature, in July, in White River, is 88°F (31.1°C) and the average low-temperature is 66.7°F (19.3°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in July is estimated at 95°F (35°C).

What is the average humidity in July in White River?

In July, the average relative humidity in White River is 58%.

How many days does it rain in July in White River?

In White River, South Dakota, in July, it is raining for 12.9 days, with typically 2.09" (53mm) of accumulated precipitation.

When it does not snow in White River?

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

What is the average length of the day in July in White River?

The average day length in July is 15h and 2min.

When are sunrise and sunset in July in White River?

On the first day of July in White River, South Dakota, sunrise is at 6:06 am and sunset at 9:28 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 9:06 pm CDT.

What month has the most sunshine in White River?

With an average of 11.4h of sunshine, July has the most sunshine of the year in White River, South Dakota.

How long on average sun shines in July in White River?

In White River, the average sunshine duration in July is 11.4h.

What are the months with the highest UV index in White River?

June through August, with an average maximum UV index of 6, are months with the highest UV index in White River, South Dakota.

What is the UV index intensity in July in White River?

The average daily maximum UV index in July in White River, South Dakota, is 6. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to 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
White River, SD

Average temperature in July - White River, SD
  • Average high temperature in July: 88°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in July: 66.7°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).

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Average pressure in July
White River, SD

Average pressure in July - White River, SD
  • Average pressure in July: 29.91"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in July
White River, SD

Average wind speed in July - White River, SD
  • Average wind speed in July: 9.9mph

The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is August (9.8mph).

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Average humidity in July
White River, SD

Average humidity in July - White River, SD
  • Average humidity in July: 58%

The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are August and September (57%).

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Average rainfall in July
White River, SD

Average rainfall in July - White River, SD
  • Average rainfall in July: 2.09"

The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.47").

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Average rainfall days in July
White River, SD

Average rainfall days in July - White River, SD
  • Average rainfall days in July: 12.9 days

The month with the highest number of rainy days is June (15.3 days).
The months with the least rainy days are January and February (2.7 days).

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Average snowfall in July
White River, SD

Average snowfall in July - White River, SD
  • Average snowfall in July: 0"

The month with the highest snowfall is December (3.19").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in July
White River, SD

Average snowfall days in July - White River, SD
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in July /
Average sunshine in July
White River, SD

Average daylight in July / Average sunshine in July - White River, SD
  • Average daylight in July: 15h and 0min

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: 11h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

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Average sunshine days in July
White River, SD

Average sunshine days in July - White River, SD
  • Average sunshine days in July: 14 days

The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is June (11.2 days).

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Average UV index in July
White River, SD

Average UV index in July - White River, SD
  • Average UV index in July: 6

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in July
White River, SD

Average cloud cover in July - White River, SD
  • Average cloud cover in July: 20

The month with the most cloud cover is January (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 20).

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Average visibility in July
White River, SD

Average visibility in July - White River, SD
  • Average visibility in July: 6mi

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

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White River, South Dakota, USA

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