August weather forecast
Marty, SD

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Weather in August

August, the last month of the summer in Marty, is another warm month, with an average temperature ranging between max 85.1°F (29.5°C) and min 62.8°F (17.1°C).

Temperature

Marty's August showcases an average high-temperature of a moderately hot 85.1°F (29.5°C), hardly distinct from July's 86.5°F (30.3°C). A notable decrease from the day's highest temperature marks August, culminating in an average low of 62.8°F (17.1°C).

Heat index

August's mean heat index is appraised at a hot 91.4°F (33°C). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.

Humidity

In Marty, the average relative humidity in August is 65%.

Rainfall

In Marty, in August, it is raining for 11.3 days, with typically 1.46" (37mm) of accumulated precipitation. Throughout the year, there are 104.1 rainfall days, and 14.29" (363mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In Marty, South Dakota, the average length of the day in August is 13h and 53min.
On the first day of the month, sunrise is at 6:25 am and sunset at 8:54 pm. On the last day of August, sunrise is at 6:57 am and sunset at 8:09 pm CDT.

Sunshine

The average sunshine in August in Marty is 10.5h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In August, the UV index of 6 transforms into the following advice:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Jul 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

In August, in Marty, the average high-temperature is 85.1°F (29.5°C), and the average low-temperature is 62.8°F (17.1°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is appraised at 91.4°F (33°C).

What is the average humidity in August?

In August, the average relative humidity is 65%.

How many days does it rain in August?

In Marty, in August, it is raining for 11.3 days, with typically 1.46" (37mm) of accumulated precipitation.

When it does not snow?

In Marty, snow does not fall in May through September.

What is the average length of the day in August?

The average day length in August is 13h and 53min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:25 am and sunset at 8:54 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 8:09 pm CDT.

How long on average sun shines in August?

In August, the average sunshine duration is 10.5h.

When is the highest UV index?

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

What is the UV index intensity in August?

In Marty, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health threat 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 August
Marty, SD

Average temperature in August - Marty, SD
  • Average high temperature in August: 85.1°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in August: 62.8°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 (13.6°F).

Average pressure in August
Marty, SD

Average pressure in August - Marty, SD
  • Average pressure in August: 29.92"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 August
Marty, SD

Average wind speed in August - Marty, SD
  • Average wind speed in August: 8.5mph

The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).

Average humidity in August
Marty, SD

Average humidity in August - Marty, SD
  • Average humidity in August: 65%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (62%).

Average rainfall in August
Marty, SD

Average rainfall in August - Marty, SD
  • Average rainfall in August: 1.46"

The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is February (0.31").

Average rainfall days in August
Marty, SD

Average rainfall days in August - Marty, SD
  • Average rainfall days in August: 11.3 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (2.9 days).

Average snowfall in August
Marty, SD

Average snowfall in August - Marty, SD
  • Average snowfall in August: 0"

The months with the highest snowfall are January and March (1.93").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Marty, SD

Average snowfall days in August - Marty, SD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Marty, SD

Average daylight in August / Average sunshine in August - Marty, SD
  • Average daylight in August: 13h and 5min

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 6min).

  • Average sunshine in August: 10h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in August
Marty, SD

Average sunshine days in August - Marty, SD
  • Average sunshine days in August: 16.7 days

The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is June (12.3 days).

Average UV index in August
Marty, SD

Average UV index in August - Marty, SD
  • Average UV index in August: 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 August
Marty, SD

Average cloud cover in August - Marty, SD
  • Average cloud cover in August: 24

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 23).

Average visibility in August
Marty, SD

Average visibility in August - Marty, SD
  • Average visibility in August: 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).

Marty, South Dakota, USA

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