August weather forecast
Ferney, SD

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Weather in August

The last month of the summer, August, is another warm month in Ferney, South Dakota, with an average temperature ranging between max 83.1°F (28.4°C) and min 61°F (16.1°C).

Temperature

In Ferney, August's average high-temperature stands at a still moderately hot 83.1°F (28.4°C), closely related to the preceding month. A marked drop from daytime peak temperatures to an average low-temperature of 61°F (16.1°C) is observed during the nights in August.

Heat index

For August, the heat index is appraised at a hot 86°F (30°C). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 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

August and September, with an average relative humidity of 60%, are the least humid months.

Rainfall

In Ferney, during August, the rain falls for 10.4 days and regularly aggregates up to 1.61" (41mm) of precipitation. Throughout the year, there are 97.2 rainfall days, and 18.35" (466mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in August in Ferney is 14h and 2min.
On the first day of August, sunrise is at 6:17 am and sunset at 8:59 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 8:11 pm CDT.

Sunshine

In Ferney, the average sunshine in August is 10.7h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 during August translates into the following directions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
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Frequently asked questions

Is it hot in Ferney during August?

The high-temperature, in August, in Ferney, is 83.1°F (28.4°C), while the low-temperature averages to 61°F (16.1°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is appraised at 86°F (30°C).

What is the least humid month in Ferney?

August and September, with an average relative humidity of 60%, are the least humid months in Ferney, South Dakota.

What is the average humidity in August in Ferney?

In Ferney, South Dakota, the average relative humidity in August is 60%.

How many days does it rain in August in Ferney?

In August, the rain falls for 10.4 days. Throughout August, 1.61" (41mm) of precipitation is accumulated.

When it does not snow in Ferney?

June through September are months without snowfall in Ferney, South Dakota.

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

In August, the average day length in Ferney, South Dakota, is 14h and 2min.

When are sunrise and sunset in August in Ferney?

On the first day of August, sunrise is at 6:17 am and sunset at 8:59 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 8:11 pm CDT.

How long on average sun shines in August in Ferney?

The average sunshine duration in August in Ferney, South Dakota, is 10.7h.

What is the month with the highest UV index in Ferney?

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

What is the UV index reading in August in Ferney?

In Ferney, South Dakota, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health threat 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
Ferney, SD

Average temperature in August - Ferney, SD
  • Average high temperature in August: 83.1°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (20.7°F).

  • Average low temperature in August: 61°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 (6.3°F).

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Average pressure in August
Ferney, SD

Average pressure in August - Ferney, 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).

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Average wind speed in August
Ferney, SD

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

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).

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Average humidity in August
Ferney, SD

Average humidity in August - Ferney, SD
  • Average humidity in August: 60%

The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are August and September (60%).

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Average rainfall in August
Ferney, SD

Average rainfall in August - Ferney, SD
  • Average rainfall in August: 1.61"

The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is January (0.59").

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Average rainfall days in August
Ferney, SD

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

The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (2 days).

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Average snowfall in August
Ferney, SD

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

The month with the highest snowfall is January (3.82").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Ferney, SD

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

The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Ferney, 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 4min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in August
Ferney, SD

Average sunshine days in August - Ferney, SD
  • Average sunshine days in August: 18.2 days

The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is June (12.7 days).

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Average UV index in August
Ferney, SD

Average UV index in August - Ferney, 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, February and November (UV index 1).

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Average cloud cover in August
Ferney, SD

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

The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and August (Cloud cover 23).

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Average visibility in August
Ferney, SD

Average visibility in August - Ferney, 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).

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Ferney, South Dakota, USA

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