August weather forecast
Mandan, ND

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Scenic fields and vast spaces laden with green trees and shrubs in this place near the Mandan Community of North Dakota
Scenic fields and vast spaces laden with green trees and shrubs in this place near the Mandan Community of North Dakota

Weather in August

In Mandan, August continues the trend of warm temperatures seen in July, although a subtle decline is observed as the month progresses. This month brings a slight respite in terms of humidity, which falls to 55%. Night times in August are relatively cooler than in July, making evenings pleasant. Mild breezes continue to blow, adding a draft to the typically warm August weather.

Temperature

With the arrival of August, Mandan's average high-temperature registers at a still moderately hot 82°F (27.8°C), indicating a subtle variation from the previous month. Mandan records a pronounced decline from the day's peak to an average nighttime low-temperature of 60.3°F (15.7°C) throughout August.

Heat index

The heat index value for August is calculated to be 84.2°F (29°C). Uninterrupted exposure and activity might result in fatigue, potentially causing heat cramps.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.

Humidity

August is the least humid month, with an average relative humidity of 55%.

Rainfall

In Mandan, North Dakota, in August, it is raining for 11.1 days, with typically 1.5" (38mm) of accumulated precipitation. In Mandan, during the entire year, the rain falls for 94.3 days and collects up to 14.29" (363mm) of precipitation.

Snowfall

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

Daylight

In Mandan, the average length of the day in August is 14h and 9min.
On the first day of August, sunrise is at 6:24 am and sunset at 9:15 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 8:24 pm CDT.

Sunshine

In August, the average sunshine is 10.9h.

UV index

The average daily maximum UV index in August in Mandan is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 5 in August translates into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.

Frequently asked questions

What is the temperature in August?

Mandan in August has an average high-temperature of 82°F (27.8°C) and an average low-temperature of 60.3°F (15.7°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 84.2°F (29°C).

What is the least humid month?

August is the least humid month, with an average relative humidity of 55%.

What is the average humidity in August?

The average relative humidity in August is 55%.

How many days does it rain in August?

In Mandan, during August, the rain falls for 11.1 days and regularly aggregates up to 1.5" (38mm) of precipitation.

When it does not snow?

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

How many hours of daylight does Mandan have in August?

The average day length in August is 14h and 9min.

When are sunrise and sunset in August?

On the first day of August in Mandan, sunrise is at 6:24 am and sunset at 9:15 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 8:24 pm CDT.

How many hours of sunshine does Mandan have in August?

In Mandan, the average sunshine duration in August is 10.9h.

What is the UV index intensity in August?

In Mandan, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a moderate health threat 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
Mandan, ND

Average temperature in August - Mandan, ND
  • Average high temperature in August: 82°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (20.7°F).

  • Average low temperature in August: 60.3°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 (6.3°F).

Average pressure in August
Mandan, ND

Average pressure in August - Mandan, ND
  • 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
Mandan, ND

Average wind speed in August - Mandan, ND
  • Average wind speed in August: 8.5mph

The windiest months (with the highest average wind speed) are April and October (10.8mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).

Average humidity in August
Mandan, ND

Average humidity in August - Mandan, ND
  • Average humidity in August: 55%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (55%).

Average rainfall in August
Mandan, ND

Average rainfall in August - Mandan, ND
  • Average rainfall in August: 1.5"

The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days in August
Mandan, ND

Average rainfall days in August - Mandan, ND
  • Average rainfall days in August: 11.1 days

The month with the highest number of rainy days is June (13.1 days).
The month with the least rainy days is February (2.3 days).

Average snowfall in August
Mandan, ND

Average snowfall in August - Mandan, ND
  • Average snowfall in August: 0"

The month with the highest snowfall is December (3.31").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Mandan, ND

Average snowfall days in August - Mandan, ND
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is December (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Mandan, ND

Average daylight in August / Average sunshine in August - Mandan, ND
  • Average daylight in August: 14h and 1min

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

  • Average sunshine in August: 10h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in August
Mandan, ND

Average sunshine days in August - Mandan, ND
  • Average sunshine days in August: 17.3 days

The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is June (14.6 days).

Average UV index in August
Mandan, ND

Average UV index in August - Mandan, ND
  • 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 November and December (UV index 1).

Average cloud cover in August
Mandan, ND

Average cloud cover in August - Mandan, ND
  • Average cloud cover in August: 21

The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 21).

Average visibility in August
Mandan, ND

Average visibility in August - Mandan, ND
  • 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).

Mandan, North Dakota, USA

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