July weather forecast
Summit, SD

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Weather in July

July, the same as June, is another warm summer month in Summit, South Dakota, with an average temperature ranging between max 81.5°F (27.5°C) and min 61.9°F (16.6°C).

Temperature

July is the warmest month, with the temperature often reaching an average high of 81.5°F (27.5°C) and an average low of 61.9°F (16.6°C).

Heat index

The heat index value for July is calculated to be a tropical 86°F (30°C). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.

Humidity

The average relative humidity in July is 73%.

Rainfall

In Summit, in July, during 14.3 rainfall days, 2.99" (76mm) of precipitation is typically accumulated. In Summit, during the entire year, the rain falls for 115.2 days and collects up to 19.88" (505mm) of precipitation.

Snowfall

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

Daylight

In Summit, the average length of the day in July is 15h and 14min.
On the first day of the month, sunrise is at 5:44 am and sunset at 9:19 pm. On the last day of July, sunrise is at 6:12 am and sunset at 8:56 pm CDT.

Sunshine

The month with the most sunshine is July, with an average of 10.8h of sunshine.

UV index

The months with the highest UV index are June and July, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily high UV index of 6 during July translates into the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the hottest?

July, on average, is the warmest month, registering a high temperature of 81.5°F (27.5°C) and a low of 61.9°F (16.6°C).

What is the usual temperature for Summit in July?

In July, the average high-temperature and low-temperature are 81.5°F (27.5°C) and 61.9°F (16.6°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in July is calculated to be 86°F (30°C).

What is the average humidity in July?

In July, the average relative humidity is 73%.

How many days does it rain in July?

In July, the rain falls for 14.3 days. Throughout July, 2.99" (76mm) of precipitation is accumulated.

When it does not snow in Summit?

June through September are months without snowfall.

How many hours of daylight does Summit have in July?

In July, the average day length is 15h and 14min.

When are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:44 am and sunset at 9:19 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 8:56 pm CDT.

What month has the most sunshine?

July has the most sunshine of the year, with an average of 10.8h of sunshine.

How long on average sun shines in July?

In July, the average sunshine duration is 10.8h.

What is the month with the highest UV index?

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

How high is the UV index in July?

In July, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe 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
Summit, SD

Average temperature in July - Summit, SD
  • Average high temperature in July: 81.5°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (19.6°F).

  • Average low temperature in July: 61.9°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (6.1°F).

Average pressure in July
Summit, SD

Average pressure in July - Summit, 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
Summit, SD

Average wind speed in July - Summit, SD
  • Average wind speed in July: 8mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (8mph).

Average humidity in July
Summit, SD

Average humidity in July - Summit, SD
  • Average humidity in July: 73%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (66%).

Average rainfall in July
Summit, SD

Average rainfall in July - Summit, SD
  • Average rainfall in July: 2.99"

The wettest month (with the highest rainfall) is June (3.11").
The driest months (with the least rainfall) are January and February (0.63").

Average rainfall days in July
Summit, SD

Average rainfall days in July - Summit, SD
  • Average rainfall days in July: 14.3 days

The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is February (2.3 days).

Average snowfall in July
Summit, SD

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

The month with the highest snowfall is December (4.49").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Summit, SD

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

The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in July / Average sunshine in July - Summit, 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: 10h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in July
Summit, SD

Average sunshine days in July - Summit, SD
  • Average sunshine days in July: 13.8 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is June (9.6 days).

Average UV index in July
Summit, SD

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

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

Average cloud cover in July
Summit, SD

Average cloud cover in July - Summit, SD
  • Average cloud cover in July: 25

The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 25).

Average visibility in July
Summit, SD

Average visibility in July - Summit, 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).

Summit, South Dakota, USA

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