August weather forecast
Ortley, SD

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Weather in August

August, the last month of the summer in Ortley, is also a moderately hot month, with an average temperature ranging between min 58.8°F (14.9°C) and max 80.1°F (26.7°C).

Temperature

In August, Ortley's weather conditions record an average high-temperature of a still warm 80.1°F (26.7°C), demonstrating little divergence from the preceding month. Ortley's average low-temperature in the month of August is recorded at a mild 58.8°F (14.9°C).

Humidity

In Ortley, the average relative humidity in August is 67%.

Rainfall

In August, the rain falls for 12.3 days. Throughout August, 2.01" (51mm) of precipitation is accumulated. In Ortley, during the entire year, the rain falls for 112.9 days and collects up to 22.09" (561mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in August is 14h and 2min.
On the first day of the month, sunrise is at 6:14 am and sunset at 8:55 pm. On the last day of August, in Ortley, sunrise is at 6:50 am and sunset at 8:07 pm CDT.

Sunshine

In Ortley, the average sunshine in August is 10.3h.

UV index

The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 5 in August interprets into the following advice:
Guard yourself - Avoiding sunburn is suggested. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures in Ortley?

In August, the average high-temperature and low-temperature are 80.1°F (26.7°C) and 58.8°F (14.9°C) respectively. In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is computed to be 84.2°F (29°C).

What is the average humidity in August in Ortley?

The average relative humidity in August in Ortley is 67%.

How much does it rain in Ortley in August?

In Ortley, in August, during 12.3 rainfall days, 2.01" (51mm) of precipitation is typically accumulated.

When it does not snow in Ortley?

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

What is the average length of the day in August in Ortley?

The average day length in August in Ortley, South Dakota, is 14h and 2min.

When is the sunrise / sunset in August in Ortley?

In August, on the first day of the month, sunrise is at 6:14 am and sunset at 8:55 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 8:07 pm CDT.

How many hours of sunshine does Ortley have in August?

In August, the average sunshine duration in Ortley is 10.3h.

What is the UV index intensity in August in Ortley?

In August, the average daily maximum UV index in Ortley is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to 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
Ortley, SD

Average temperature in August - Ortley, SD
  • Average high temperature in August: 80.1°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (18.9°F).

  • Average low temperature in August: 58.8°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (5°F).

Average pressure in August
Ortley, SD

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

Average wind speed in August - Ortley, SD
  • Average wind speed in August: 8.8mph

The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is July (8.7mph).

Average humidity in August
Ortley, SD

Average humidity in August - Ortley, SD
  • Average humidity in August: 67%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is September (66%).

Average rainfall in August
Ortley, SD

Average rainfall in August - Ortley, SD
  • Average rainfall in August: 2.01"

The wettest month (with the highest rainfall) is July (3.58").
The driest month (with the least rainfall) is November (0.63").

Average rainfall days in August
Ortley, SD

Average rainfall days in August - Ortley, SD
  • Average rainfall days in August: 12.3 days

The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is February (2.3 days).

Average snowfall in August
Ortley, SD

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

The month with the highest snowfall is December (4.53").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Ortley, SD

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

The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Ortley, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

Average sunshine days in August
Ortley, SD

Average sunshine days in August - Ortley, SD
  • Average sunshine days in August: 16.5 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is June (10.4 days).

Average UV index in August
Ortley, SD

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

Average cloud cover in August
Ortley, SD

Average cloud cover in August - Ortley, SD
  • Average cloud cover in August: 27

The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 27).

Average visibility in August
Ortley, SD

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

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

Ortley, South Dakota, USA

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