July weather forecast
Marion, SD

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Weather in July

July, like June, in Marion, South Dakota, is another warm summer month, with an average temperature varying between 63.7°F (17.6°C) and 83.3°F (28.5°C).

Temperature

Marion notes the warmest temperatures in July, with a high average of 83.3°F (28.5°C) and a low of 63.7°F (17.6°C).

Heat index

For most parts of July, the heat index is computed to be a hot 89.6°F (32°C). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', determines the feeling of heat when you account for the relative humidity. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.

Humidity

In July, the average relative humidity in Marion is 74%.

Rainfall

In Marion, in July, during 12.7 rainfall days, 2.05" (52mm) of precipitation is typically accumulated. In Marion, during the entire year, the rain falls for 111.7 days and collects up to 17.76" (451mm) of precipitation.

Snowfall

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

Daylight

In July, the average length of the day is 15h and 2min.
On the first day of the month, sunrise is at 5:52 am and sunset at 9:13 pm. On the last day of July, sunrise is at 6:18 am and sunset at 8:52 pm CDT.

Sunshine

With an average of 10.7h of sunshine, July has the most sunshine of the year.

UV index

The months with the highest UV index are June and July, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: In July, a regular UV index of 6 translates into these guidelines:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the hottest in Marion?

July, characterized by an average high temperature of 83.3°F (28.5°C) and a low temperature of 63.7°F (17.6°C), is generally the warmest month in Marion.

How hot does it get in July?

In July, the average high-temperature and low-temperature are 83.3°F (28.5°C) and 63.7°F (17.6°C) respectively. In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is computed to be 89.6°F (32°C).

What is the average humidity in July?

The average relative humidity in July is 74%.

How much does it rain in July?

In Marion, during July, the rain falls for 12.7 days and regularly aggregates up to 2.05" (52mm) of precipitation.

When it does not snow in Marion?

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

How many hours of daylight does Marion have in July?

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

What time are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:52 am and sunset at 9:13 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 8:52 pm CDT.

What month has the most sunshine in Marion?

The month with the most sunshine is July, with an average of 10.7h of sunshine.

How many hours of sunshine does Marion have in July?

The average sunshine duration in July is 10.7h.

What is the month with the highest UV index?

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

What is the UV index intensity in July?

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

Average temperature in July - Marion, SD
  • Average high temperature in July: 83.3°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (24.3°F).

  • Average low temperature in July: 63.7°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

Average pressure in July
Marion, SD

Average pressure in July - Marion, SD
  • Average pressure in July: 29.93"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in July
Marion, SD

Average wind speed in July - Marion, SD
  • Average wind speed in July: 7.9mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).

Average humidity in July
Marion, SD

Average humidity in July - Marion, SD
  • Average humidity in July: 74%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (66%).

Average rainfall in July
Marion, SD

Average rainfall in July - Marion, SD
  • Average rainfall in July: 2.05"

The wettest month (with the highest rainfall) is June (2.91").
The driest months (with the least rainfall) are January, February and November (0.47").

Average rainfall days in July
Marion, SD

Average rainfall days in July - Marion, SD
  • Average rainfall days in July: 12.7 days

The months with the highest number of rainy days are May and June (16 days).
The month with the least rainy days is February (2.5 days).

Average snowfall in July
Marion, SD

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

The month with the highest snowfall is February (2.64").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Marion, SD

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

The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in July / Average sunshine in July - Marion, 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: 10h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in July
Marion, SD

Average sunshine days in July - Marion, SD
  • Average sunshine days in July: 15.4 days

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (11.5 days).

Average UV index in July
Marion, SD

Average UV index in July - Marion, 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 November (UV index 1).

Average cloud cover in July
Marion, SD

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

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 25).

Average visibility in July
Marion, SD

Average visibility in July - Marion, 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).

Marion, South Dakota, USA

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