July weather forecast
White River, SD

Share

Weather in July

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

Temperature

With an average high-temperature of 88°F (31.1°C) and an average low-temperature of 66.7°F (19.3°C), July is the warmest month.

Heat index

The heat index value for July is calculated to be a very hot 95°F (35°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

In July, the average relative humidity is 58%.

Rainfall

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

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in July 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, 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 estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: A daily maximum UV index of 6 in July translates into the following instructions:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Updated: Jul 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest?

In White River, South Dakota, the peak temperatures are generally noted in July, averaging a high of 88°F (31.1°C) and a low of 66.7°F (19.3°C).

How hot is July?

In White River, 88°F (31.1°C) is the average high-temperature and 66.7°F (19.3°C) is the average low-temperature during July. The average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, in July is calculated to be 95°F (35°C).

What is the average humidity in July?

In July, the average relative humidity is 58%.

How much does it rain in July?

In White River, in July, during 12.9 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

What is the average length of the day in July?

In White River, the average day length in July is 15h and 2min.

When is the sunrise / sunset in July?

On the first day of July, 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?

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

How long on average sun shines in July?

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

What is the month with the highest UV index?

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

What is the UV index reading in July?

The average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents 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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

White River, South Dakota, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location