August weather forecast
Amherst, SD

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Weather in August

August, the last month of the summer in Amherst, 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 59.7°F (15.4°C).

Temperature

Shifting into August, Amherst records an average high-temperature of a still moderately hot 81.1°F (27.3°C), presenting minor fluctuations compared to the previous month. In Amherst, August's nights observe an average temperature dip to a mild 59.7°F (15.4°C).

Heat index

During August, the heat index is estimated at 84.2°F (29°C). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.

Humidity

August and September, with an average relative humidity of 62%, are the least humid months.

Rainfall

In Amherst, in August, it is raining for 12 days, with typically 1.77" (45mm) of accumulated precipitation. In Amherst, during the entire year, the rain falls for 109.5 days and collects up to 20.39" (518mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Amherst, the average length of the day in August is 14h and 4min.
On the first day of the month, sunrise is at 6:15 am and sunset at 9:00 pm. On the last day of August, sunrise is at 6:52 am and sunset at 8:10 pm CDT.

Sunshine

The average sunshine in August is 10.7h.

UV index

In August, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high UV index of 5 in August translates into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.

Frequently asked questions

What are August temperatures?

August temperatures vary between a high-temperature of 81.1°F (27.3°C) and a low-temperature of 59.7°F (15.4°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is estimated at 84.2°F (29°C).

What is the least humid month in Amherst?

August and September, with an average relative humidity of 62%, are the least humid months.

What is the average humidity in August?

In August, the average relative humidity is 62%.

How much does it rain in August?

In Amherst, South Dakota, in August, it is raining for 12 days, with typically 1.77" (45mm) of accumulated precipitation.

When it does not snow?

In Amherst, South Dakota, snow does not fall in June through September.

How many hours of daylight does Amherst have in August?

In Amherst, the average day length in August is 14h and 4min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:15 am and sunset at 9:00 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 8:10 pm CDT.

How long on average sun shines in August?

In August, the average sunshine duration is 10.7h.

How high is the UV index in August?

In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Amherst, SD

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

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (19°F).

  • Average low temperature in August: 59.7°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 (5.4°F).

Average pressure in August
Amherst, SD

Average pressure in August - Amherst, SD
  • Average pressure in August: 29.91"Hg

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in August
Amherst, SD

Average wind speed in August - Amherst, SD
  • Average wind speed in August: 8.2mph

The windiest month (with the highest average wind speed) is October (10.8mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

Average humidity in August
Amherst, SD

Average humidity in August - Amherst, SD
  • Average humidity in August: 62%

The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are August and September (62%).

Average rainfall in August
Amherst, SD

Average rainfall in August - Amherst, SD
  • Average rainfall in August: 1.77"

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

Average rainfall days in August
Amherst, SD

Average rainfall days in August - Amherst, SD
  • Average rainfall days in August: 12 days

The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (2.4 days).

Average snowfall in August
Amherst, SD

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

The month with the highest snowfall is December (4.61").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Amherst, SD

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

The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Amherst, SD
  • Average daylight in August: 14h and 1min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in August: 10h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in August
Amherst, SD

Average sunshine days in August - Amherst, SD
  • Average sunshine days in August: 15.4 days

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is June (10.3 days).

Average UV index in August
Amherst, SD

Average UV index in August - Amherst, 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 November (UV index 1).

Average cloud cover in August
Amherst, SD

Average cloud cover in August - Amherst, SD
  • Average cloud cover in August: 23

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).

Average visibility in August
Amherst, SD

Average visibility in August - Amherst, SD
  • Average visibility in August: 6mi

The months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and March (5mi).

Amherst, South Dakota, USA

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