August weather forecast
Sibley, ND

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Weather in August

The last month of the summer, August, is another warm month in Sibley, North Dakota, with an average temperature ranging between max 80.2°F (26.8°C) and min 59°F (15°C).

Temperature

Sibley registers an average high-temperature of a still moderately hot 80.2°F (26.8°C) with the arrival of August, showing minor deviation from the preceding month. Throughout the August nights, Sibley encounters a low-temperature of 59°F (15°C).

Humidity

With an average relative humidity of 61%, August is the least humid month.

Rainfall

In Sibley, North Dakota, in August, it is raining for 10.2 days, with typically 1.42" (36mm) of accumulated precipitation. In Sibley, during the entire year, the rain falls for 94.8 days and collects up to 14.92" (379mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Sibley, the average length of the day in August is 14h and 11min.
On the first day of the month, sunrise is at 6:11 am and sunset at 9:04 pm. On the last day of August, sunrise is at 6:50 am and sunset at 8:13 pm CDT.

Sunshine

In August, the average sunshine is 10.6h.

UV index

In Sibley, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum high daily UV index of 5 during August translates into the following directions:
Act with care - The need to guard against sun damage is communicated. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Boost your sun resistance with garments that are densely woven yet spacious.
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in August?

August temperatures vary between a high-temperature of 80.2°F (26.8°C) and a low-temperature of 59°F (15°C). In July, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is appraised at 84.2°F (29°C).

What is the least humid month?

The least humid month is August, with an average relative humidity of 61%.

What is the average humidity in August?

In Sibley, the average relative humidity in August is 61%.

How much does it rain in Sibley in August?

In Sibley, in August, during 10.2 rainfall days, 1.42" (36mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

What is the average length of the day in August?

In Sibley, the average day length in August is 14h and 11min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:11 am and sunset at 9:04 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 8:13 pm CDT.

How long on average sun shines in August?

In Sibley, the average sunshine duration in August is 10.6h.

What is the UV index intensity in August?

The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents 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
Sibley, ND

Average temperature in August - Sibley, ND
  • Average high temperature in August: 80.2°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (17.1°F).

  • Average low temperature in August: 59°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (3.4°F).

Average pressure in August
Sibley, ND

Average pressure in August - Sibley, ND
  • Average pressure in August: 29.91"Hg

The month with the highest atmospheric pressure is February (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in August
Sibley, ND

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

The windiest month (with the highest average wind speed) is October (11.4mph).
The calmest months (with the lowest average wind speed) are July and August (8.5mph).

Average humidity in August
Sibley, ND

Average humidity in August - Sibley, ND
  • Average humidity in August: 61%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (61%).

Average rainfall in August
Sibley, ND

Average rainfall in August - Sibley, ND
  • Average rainfall in August: 1.42"

The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is January (0.39").

Average rainfall days in August
Sibley, ND

Average rainfall days in August - Sibley, ND
  • Average rainfall days in August: 10.2 days

The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is January (1.5 days).

Average snowfall in August
Sibley, ND

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

The month with the highest snowfall is December (3.11").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Sibley, ND

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

The month with the highest number of snowfall days is December (13.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in August: 10h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

Average sunshine days in August
Sibley, ND

Average sunshine days in August - Sibley, ND
  • Average sunshine days in August: 19.1 days

The month with the most sunshine days is October (20 days).
The month with the least sunshine days is June (12.3 days).

Average UV index in August
Sibley, ND

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

Average cloud cover in August
Sibley, ND

Average cloud cover in August - Sibley, ND
  • Average cloud cover in August: 25

The months with the most cloud cover are January and February (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in August
Sibley, ND

Average visibility in August - Sibley, ND
  • Average visibility in August: 6mi

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

Sibley, North Dakota, USA

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