August weather forecastSibley, ND
August
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 14h and 12min
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 36min
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: 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: 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: 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: 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).





