July weather forecast
Whitehorse, SD

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Weather in July

July is a hot summer month in Whitehorse, South Dakota, with an average temperature varying between 65.5°F (18.6°C) and 86.4°F (30.2°C).

Temperature

July, with an average high of 86.4°F (30.2°C) and a low of 65.5°F (18.6°C), signifies the warmest month of the year.

Heat index

The heat index for July is appraised at a tropical 89.6°F (32°C). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for 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 is 54%.

Rainfall

In Whitehorse, during July, the rain falls for 11 days and regularly aggregates up to 2.09" (53mm) of precipitation. Throughout the year, there are 89.4 rainfall days, and 15.39" (391mm) of precipitation is accumulated.

Snowfall

In Whitehorse, snow does not fall in June through September.

Daylight

The average length of the day in July is 15h and 14min.
On the first day of the month, sunrise is at 5:00 am and sunset at 8:35 pm. On the last day of July, sunrise is at 5:27 am and sunset at 8:11 pm MDT.

Sunshine

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

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 threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 6 in July interprets into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.

Frequently asked questions

What month is the hottest?

July is the month when Whitehorse experiences its warmest temperatures, averaging a high of 86.4°F (30.2°C) and a low of 65.5°F (18.6°C).

Is it hot during July?

The high-temperature during July is 86.4°F (30.2°C) and the low-temperature is 65.5°F (18.6°C). In July, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is appraised at 89.6°F (32°C).

What is the average humidity in July in Whitehorse?

The average relative humidity in July is 54%.

How many days does it rain in July?

In Whitehorse, in July, during 11 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?

The average day length in July is 15h and 14min.

When are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:00 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 8:11 pm MDT.

What month has the most sunshine?

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

How long on average sun shines in July?

In July, the average sunshine duration 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.

What is the UV index intensity in July?

In July, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk 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
Whitehorse, SD

Average temperature in July - Whitehorse, 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 (23°F).

  • Average low temperature in July: 65.5°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (9°F).

Average pressure in July
Whitehorse, SD

Average pressure in July - Whitehorse, SD
  • Average pressure in July: 29.9"Hg

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

Average wind speed in July
Whitehorse, SD

Average wind speed in July - Whitehorse, SD
  • Average wind speed in July: 9.8mph

The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is February (9.4mph).

Average humidity in July
Whitehorse, SD

Average humidity in July - Whitehorse, SD
  • Average humidity in July: 54%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (52%).

Average rainfall in July
Whitehorse, SD

Average rainfall in July - Whitehorse, SD
  • Average rainfall in July: 2.09"

The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in July
Whitehorse, SD

Average rainfall days in July - Whitehorse, SD
  • Average rainfall days in July: 11 days

The month with the highest number of rainy days is June (13.8 days).
The month with the least rainy days is February (1.3 days).

Average snowfall in July
Whitehorse, SD

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

The month with the highest snowfall is February (3.98").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Whitehorse, SD

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

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • 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 6min).

Average sunshine days in July
Whitehorse, SD

Average sunshine days in July - Whitehorse, SD
  • Average sunshine days in July: 16.7 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (13.6 days).

Average UV index in July
Whitehorse, SD

Average UV index in July - Whitehorse, 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 and December (UV index 1).

Average cloud cover in July
Whitehorse, SD

Average cloud cover in July - Whitehorse, SD
  • Average cloud cover in July: 21

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 21).

Average visibility in July
Whitehorse, SD

Average visibility in July - Whitehorse, 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).

Whitehorse, South Dakota, USA

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