July weather forecast
White Horse, SD

Share

Weather in July

July in White Horse, South Dakota, is a tropical summer month, with an average temperature varying between 86.4°F (30.2°C) and 65.7°F (18.7°C).

Temperature

The warmest period is July, when temperatures fluctuate between an average high of 86.4°F (30.2°C) and a low of 65.7°F (18.7°C).

Heat index

For most parts of July, the heat index is computed to be a tropical 91.4°F (33°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', represents the fusion of temperature and moisture in the air to suggest how warm it feels. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.

Humidity

In July, the average relative humidity in White Horse, South Dakota, is 58%.

Rainfall

In July, in White Horse, the rain falls for 14.8 days. Throughout July, 1.97" (50mm) of precipitation is accumulated. In White Horse, South Dakota, during the entire year, the rain falls for 109.2 days and collects up to 16.89" (429mm) of precipitation.

Snowfall

June through August are months without snowfall.

Daylight

The average length of the day in July in White Horse is 15h and 1min.
On the first day of the month, sunrise is at 6:06 am and sunset at 9:26 pm. On the last day of July, sunrise is at 6:32 am and sunset at 9:05 pm CDT.

Sunshine

July has the most sunshine of the year in White Horse, South Dakota, with an average of 11.2h of sunshine.

UV index

The months with the highest UV index in White Horse are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 6 during July leads to these instructions:
Deflect overexposure. Sun protection is a necessity. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the hottest time of year in White Horse?

White Horse, South Dakota, registers the average highest temperatures during July, with peaks of 86.4°F (30.2°C) and lows of 65.7°F (18.7°C).

Is it hot in White Horse during July?

The average high-temperature and low-temperature in White Horse during July are 86.4°F (30.2°C) and 65.7°F (18.7°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in July is computed to be 91.4°F (33°C).

What is the average humidity in July in White Horse?

In July, the average relative humidity in White Horse, South Dakota, is 58%.

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

In July, in White Horse, South Dakota, the rain falls for 14.8 days. Throughout July, 1.97" (50mm) of precipitation is accumulated.

When it does not snow in White Horse?

June through August are months without snowfall in White Horse, South Dakota.

How many hours of daylight does White Horse have in July?

The average day length in July in White Horse, South Dakota, is 15h and 1min.

When is the sunrise / sunset in July in White Horse?

On the first day of July, sunrise is at 6:06 am and sunset at 9:26 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 9:05 pm CDT.

What month has the most sunshine in White Horse?

July has the most sunshine of the year in White Horse, South Dakota, with an average of 11.2h of sunshine.

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

In July, the average sunshine duration in White Horse, South Dakota, is 11.2h.

What is the month with the highest UV index in White Horse?

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

What is the UV index reading in July in White Horse?

The average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
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 Horse, SD

Average temperature in July - White Horse, SD
  • Average high temperature in July: 86.4°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in July: 65.7°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

Average pressure in July
White Horse, SD

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in July
White Horse, SD

Average wind speed in July - White Horse, SD
  • Average wind speed in July: 10.6mph

The windiest month (with the highest average wind speed) is April (13.1mph).
The calmest months (with the lowest average wind speed) are July and August (10.6mph).

Average humidity in July
White Horse, SD

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

The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is September (56%).

Average rainfall in July
White Horse, SD

Average rainfall in July - White Horse, SD
  • Average rainfall in July: 1.97"

The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in July
White Horse, SD

Average rainfall days in July - White Horse, SD
  • Average rainfall days in July: 14.8 days

The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (2.4 days).

Average snowfall in July
White Horse, SD

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

The month with the highest snowfall is December (2.76").
The months with the least snowfall are June, July and August (0").

Average snowfall days in July
White Horse, SD

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

The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in July: 11h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

Average sunshine days in July
White Horse, SD

Average sunshine days in July - White Horse, SD
  • Average sunshine days in July: 12.4 days

The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is June (11.2 days).

Average UV index in July
White Horse, SD

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

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in July
White Horse, SD

Average cloud cover in July - White Horse, SD
  • Average cloud cover in July: 21

The month with the most cloud cover is February (Cloud cover 44).
The months with the least cloud cover are July, August and September (Cloud cover 21).

Average visibility in July
White Horse, SD

Average visibility in July - White Horse, 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 Horse, South Dakota, USA

Weather forecast for your location

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