August weather forecast
Salem, SD

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Weather in August

August, the last month of the summer in Salem, is also a moderately hot month, with temperature in the range of an average high of 81.1°F (27.3°C) and an average low of 59.5°F (15.3°C).

Temperature

Salem measures an average high-temperature of a still warm 81.1°F (27.3°C) in August, nearly consistent with the preceding month. Salem experiences a consistent, yet significant, drop from daily highs to a low-temperature of 59.5°F (15.3°C) throughout August.

Heat index

The average heat index in August is evaluated at a hot 86°F (30°C). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.
Realize that the values for the heat index are set for shaded places and light winds. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are extremely significant for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.

Humidity

The average relative humidity in August is 73%.

Rainfall

In Salem, in August, it is raining for 13.9 days, with typically 2.48" (63mm) of accumulated precipitation. In Salem, during the entire year, the rain falls for 118.3 days and collects up to 22.76" (578mm) of precipitation.

Snowfall

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

Daylight

In August, the average length of the day is 13h and 56min.
On the first day of the month, sunrise is at 6:19 am and sunset at 8:52 pm. On the last day of August, sunrise is at 6:52 am and sunset at 8:06 pm CDT.

Sunshine

The average sunshine in August is 9.9h.

UV index

In Salem, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 5 during August translates into the following directions:
Guard yourself - An obligation to protect skin and eyes from harm exists. To guard against the harmful effects of the Sun, minimize exposure during midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures?

The high-temperature, in August, in Salem, is 81.1°F (27.3°C), while the low-temperature averages to 59.5°F (15.3°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is evaluated at 86°F (30°C).

What is the average humidity in August in Salem?

In August, the average relative humidity is 73%.

How much does it rain in August?

In August, the rain falls for 13.9 days. Throughout August, 2.48" (63mm) of precipitation is accumulated.

When it does not snow in Salem?

June through September are months without snowfall.

How many hours of daylight does Salem have in August?

In August, the average day length in Salem, South Dakota, is 13h and 56min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:19 am and sunset at 8:52 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 8:06 pm CDT.

How long on average sun shines in August?

In August, the average sunshine duration is 9.9h.

How high is the UV index in August?

In Salem, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium 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 August
Salem, SD

Average temperature in August - Salem, SD
  • Average high temperature in August: 81.1°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (22.8°F).

  • Average low temperature in August: 59.5°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).

Average pressure in August
Salem, SD

Average pressure in August - Salem, SD
  • Average pressure in August: 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 (29.85"Hg).

Average wind speed in August
Salem, SD

Average wind speed in August - Salem, SD
  • Average wind speed in August: 8.3mph

The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

Average humidity in August
Salem, SD

Average humidity in August - Salem, SD
  • Average humidity in August: 73%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (67%).

Average rainfall in August
Salem, SD

Average rainfall in August - Salem, SD
  • Average rainfall in August: 2.48"

The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is February (0.63").

Average rainfall days in August
Salem, SD

Average rainfall days in August - Salem, SD
  • Average rainfall days in August: 13.9 days

The month with the highest number of rainy days is June (18.3 days).
The month with the least rainy days is February (2.6 days).

Average snowfall in August
Salem, SD

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

The month with the highest snowfall is December (4.21").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Salem, SD

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

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

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 August: 9h and 5min

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 0min).

Average sunshine days in August
Salem, SD

Average sunshine days in August - Salem, SD
  • Average sunshine days in August: 13 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (9.2 days).

Average UV index in August
Salem, SD

Average UV index in August - Salem, SD
  • Average UV index in August: 5

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

Average cloud cover in August
Salem, SD

Average cloud cover in August - Salem, SD
  • Average cloud cover in August: 30

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in August
Salem, SD

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

Salem, South Dakota, USA

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