August weather forecastPerth, ND
August
Weather in August
August, the last month of the summer in Perth, is another warm month, with an average temperature varying between 77.9°F (25.5°C) and 56.5°F (13.6°C).Temperature
Perth's temperature records reveal August as the warmest month, marked by average highs of 77.9°F (25.5°C) and lows of 56.5°F (13.6°C).Humidity
With an average relative humidity of 60%, August is the least humid month.Rainfall
In Perth, during August, the rain falls for 11.3 days and regularly aggregates up to 1.69" (43mm) of precipitation. In Perth, during the entire year, the rain falls for 110.9 days and collects up to 17.95" (456mm) of precipitation.Snowfall
June through September are months without snowfall in Perth, North Dakota.Daylight
The average length of the day in August is 14h and 18min.On the first day of August in Perth, sunrise is at 6:12 am and sunset at 9:15 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 8:21 pm CDT.
Sunshine
In Perth, the average sunshine in August is 10.8h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 5 during August translates into the following guidance:
Heed the precautions - It is counselled to guard against solar damage. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Perth, ND
- Average high temperature in August: 77.9°F
The warmest month (with the highest average high temperature) is August (77.9°F).
The month with the lowest average high temperature is January (14.2°F).
- Average low temperature in August: 56.5°F
The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (0.5°F).
Average pressure in August
Perth, ND
- Average pressure in August: 29.9"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
Perth, ND
- Average wind speed in August: 8.5mph
The windiest month (with the highest average wind speed) is October (11mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity in August
Perth, ND
- Average humidity in August: 60%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (60%).
Average rainfall in August
Perth, ND
- Average rainfall in August: 1.69"
The wettest month (with the highest rainfall) is June (3.27").
The driest month (with the least rainfall) is February (0.43").
Average rainfall days in August
Perth, ND
- Average rainfall days in August: 11.3 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (2 days).
Average snowfall in August
Perth, ND
- Average snowfall in August: 0"
The month with the highest snowfall is November (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Perth, ND
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (15.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Perth, ND
- Average daylight in August: 14h and 18min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in August: 10h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in August
Perth, ND
- Average sunshine days in August: 16.3 days
The month with the most sunshine days is September (16.8 days).
The month with the least sunshine days is June (8.1 days).
Average UV index in August
Perth, ND
- Average UV index in August: 5
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in August
Perth, ND
- Average cloud cover in August: 25
The month with the most cloud cover is February (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in August
Perth, 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).





