August weather forecast
Glencross, SD

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Weather in August

The last month of the summer, August, is also a moderately hot month in Glencross, South Dakota, with an average temperature fluctuating between 63.3°F (17.4°C) and 84.2°F (29°C).

Temperature

August ushers in an average high-temperature of a moderately hot 84.2°F (29°C), aligning closely with the preceding month. Glencross records an average nighttime low of 63.3°F (17.4°C) in August.

Heat index

August's average heat index is calculated to be a tropical 86°F (30°C). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.

Humidity

With an average relative humidity of 52%, August is the least humid month.

Rainfall

In August, the rain falls for 10.4 days. Throughout August, 1.18" (30mm) of precipitation is accumulated. In Glencross, during the entire year, the rain falls for 89.4 days and collects up to 15.39" (391mm) of precipitation.

Snowfall

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

Daylight

In August, the average length of the day in Glencross is 14h and 3min.
On the first day of August, sunrise is at 5:28 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 7:22 pm MDT.

Sunshine

In August, the average sunshine is 10.9h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In August, a daily UV index of 6 turns into the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during August?

In August, the average high-temperature and low-temperature in Glencross are 84.2°F (29°C) and 63.3°F (17.4°C) respectively. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in August is calculated to be 86°F (30°C).

What is the least humid month?

With an average relative humidity of 52%, August is the least humid month.

What is the average humidity in August?

The average relative humidity in August is 52%.

How much does it rain in August?

In Glencross, in August, during 10.4 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

When it does not snow?

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

What is the average length of the day in August?

The average day length in August in Glencross is 14h and 3min.

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 5:28 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 7:22 pm MDT.

How many hours of sunshine does Glencross have in August?

The average sunshine duration in August is 10.9h.

What is the month with the highest UV index?

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

What is the UV index intensity in August?

In August, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability 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
Glencross, SD

Average temperature in August - Glencross, SD
  • Average high temperature in August: 84.2°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (23°F).

  • Average low temperature in August: 63.3°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (9°F).

Average pressure in August
Glencross, SD

Average pressure in August - Glencross, SD
  • Average pressure in August: 29.9"Hg

The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in August
Glencross, SD

Average wind speed in August - Glencross, SD
  • Average wind speed in August: 9.5mph

The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is February (9.4mph).

Average humidity in August
Glencross, SD

Average humidity in August - Glencross, SD
  • Average humidity in August: 52%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (52%).

Average rainfall in August
Glencross, SD

Average rainfall in August - Glencross, SD
  • Average rainfall in August: 1.18"

The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in August
Glencross, SD

Average rainfall days in August - Glencross, SD
  • Average rainfall days in August: 10.4 days

The month with the highest number of rainy days is June (13.8 days).
The month with the least rainy days is February (1.3 days).

Average snowfall in August
Glencross, SD

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

The month with the highest snowfall is February (3.98").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Glencross, SD

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

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in August: 10h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in August
Glencross, SD

Average sunshine days in August - Glencross, SD
  • Average sunshine days in August: 18 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (13.6 days).

Average UV index in August
Glencross, SD

Average UV index in August - Glencross, 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 and December (UV index 1).

Average cloud cover in August
Glencross, SD

Average cloud cover in August - Glencross, SD
  • Average cloud cover in August: 21

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 21).

Average visibility in August
Glencross, SD

Average visibility in August - Glencross, 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).

Glencross, South Dakota, USA

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