August weather forecast
Saint Onge, SD

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Weather in August

August, the last month of the summer in Saint Onge, is another warm month, with an average temperature fluctuating between 59.4°F (15.2°C) and 81.9°F (27.7°C).

Temperature

Saint Onge, South Dakota, greets August with an average high-temperature of a still moderately hot 81.9°F (27.7°C), marking a slight deviation from the preceding month. August nights are characterized by a significant departure from the daytime highs, dropping to an average temperature of 59.4°F (15.2°C).

Heat index

August's mean heat index is appraised at 82.4°F (28°C). Exhaustion might be the outcome of enduring exposure and continuous activity, with a risk of heat cramps.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.

Humidity

August is the least humid month, with an average relative humidity of 49%.

Rainfall

In August, in Saint Onge, the rain falls for 11.8 days. Throughout August, 1.54" (39mm) of precipitation is accumulated. In Saint Onge, during the entire year, the rain falls for 99.6 days and collects up to 15.63" (397mm) of precipitation.

Snowfall

In Saint Onge, snow does not fall in June through August.

Daylight

The average length of the day in August is 13h and 59min.
On the first day of the month, sunrise is at 5:42 am and sunset at 8:19 pm. On the last day of August, sunrise is at 6:17 am and sunset at 7:32 pm MDT.

Sunshine

The month with the most sunshine is August, with an average of 11.7h of sunshine.

UV index

In Saint Onge, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In August, the maximum UV index of 5 suggests this advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Saint Onge in August?

The average high-temperature, in August, in Saint Onge, is 81.9°F (27.7°C), while the average low-temperature is 59.4°F (15.2°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in August is appraised at 82.4°F (28°C).

What is the least humid month?

With an average relative humidity of 49%, August is the least humid month in Saint Onge.

What is the average humidity in August?

In August, the average relative humidity is 49%.

How much does it rain in Saint Onge in August?

In Saint Onge, during August, the rain falls for 11.8 days and regularly aggregates up to 1.54" (39mm) of precipitation.

When it does not snow?

In Saint Onge, snow does not fall in June through August.

Does it snow in August?

In Saint Onge, in August, it doesn't snow. In September, it regularly snows.

What is the average length of the day in August?

In August, the average day length in Saint Onge is 13h and 59min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:42 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:32 pm MDT.

What month has the most sunshine?

The month with the most sunshine is August, with an average of 11.7h of sunshine.

How many hours of sunshine does Saint Onge have in August?

In Saint Onge, the average sunshine duration in August is 11.7h.

What is the UV index reading in August?

In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's 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 August
Saint Onge, SD

Average temperature in August - Saint Onge, SD
  • Average high temperature in August: 81.9°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is December (30.9°F).

  • Average low temperature in August: 59.4°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is February (16.2°F).

Average pressure in August
Saint Onge, SD

Average pressure in August - Saint Onge, SD
  • Average pressure in August: 29.89"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in August
Saint Onge, SD

Average wind speed in August - Saint Onge, SD
  • Average wind speed in August: 8mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (8mph).

Average humidity in August
Saint Onge, SD

Average humidity in August - Saint Onge, SD
  • Average humidity in August: 49%

The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (49%).

Average rainfall in August
Saint Onge, SD

Average rainfall in August - Saint Onge, SD
  • Average rainfall in August: 1.54"

The wettest month (with the highest rainfall) is May (2.32").
The driest month (with the least rainfall) is January (0.59").

Average rainfall days in August
Saint Onge, SD

Average rainfall days in August - Saint Onge, SD
  • Average rainfall days in August: 11.8 days

The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (2.9 days).

Average snowfall in August
Saint Onge, SD

Average snowfall in August - Saint Onge, SD
  • Average snowfall in August: 0"

The month with the highest snowfall is April (7.36").
The months with the least snowfall are June, July and August (0").

Average snowfall days in August
Saint Onge, SD

Average snowfall days in August - Saint Onge, SD
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (11.2 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in August /
Average sunshine in August
Saint Onge, SD

Average daylight in August / Average sunshine in August - Saint Onge, SD
  • Average daylight in August: 14h and 0min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in August: 11h and 4min

The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).

Average sunshine days in August
Saint Onge, SD

Average sunshine days in August - Saint Onge, SD
  • Average sunshine days in August: 14.6 days

The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is May (12.7 days).

Average UV index in August
Saint Onge, SD

Average UV index in August - Saint Onge, SD
  • Average UV index in August: 5

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, April, November and December (UV index 2).

Average cloud cover in August
Saint Onge, SD

Average cloud cover in August - Saint Onge, SD
  • Average cloud cover in August: 16

The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 16).

Average visibility in August
Saint Onge, SD

Average visibility in August - Saint Onge, 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).

Saint Onge, South Dakota, USA

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