August weather forecastMercer, ND
August
Weather in August
The last month of the summer, August, is another warm month in Mercer, North Dakota, with temperature in the range of an average low of 59°F (15°C) and an average high of 81.3°F (27.4°C).Temperature
August reports an average high-temperature of a still warm 81.3°F (27.4°C), slightly varied from July's 82.2°F (27.9°C). Mercer anticipates a considerable cooling off from the daytime high to an average minimum temperature of 59°F (15°C) in August.Heat index
Throughout August, the heat index is computed to be 82.4°F (28°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.The standards for the heat index are set for locations in shade and under light breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. 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 is the least humid month, with an average relative humidity of 55%.Rainfall
In Mercer, in August, it is raining for 10.4 days, with typically 1.46" (37mm) of accumulated precipitation. In Mercer, during the entire year, the rain falls for 100.5 days and collects up to 15.2" (386mm) of precipitation.Snowfall
In Mercer, snow does not fall in June through September.Daylight
The average length of the day in August is 14h and 12min.On the first day of August, sunrise is at 6:21 am and sunset at 9:16 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 8:24 pm CDT.
Sunshine
In Mercer, the average sunshine in August is 10.9h.UV index
The average daily maximum UV index in August in Mercer is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A typical high UV index of 5 in August suggests the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Around midday, solar radiation is most harmful; hence, exposure should be limited. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Mercer, ND
- Average high temperature in August: 81.3°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (19.8°F).
- Average low temperature in August: 59°F
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure in August
Mercer, 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
Mercer, ND
- Average wind speed in August: 8.8mph
The windiest months (with the highest average wind speed) are April and October (11.1mph).
The calmest month (with the lowest average wind speed) is August (8.8mph).
Average humidity in August
Mercer, ND
- Average humidity in August: 55%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (55%).
Average rainfall in August
Mercer, ND
- Average rainfall in August: 1.46"
The wettest month (with the highest rainfall) is June (2.6").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in August
Mercer, ND
- Average rainfall days in August: 10.4 days
The month with the highest number of rainy days is June (14.9 days).
The month with the least rainy days is February (1.9 days).
Average snowfall in August
Mercer, ND
- Average snowfall in August: 0"
The month with the highest snowfall is January (3.78").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Mercer, ND
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Mercer, 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 30min).
- Average sunshine in August: 10h and 54min
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 42min).
Average sunshine days in August
Mercer, ND
- Average sunshine days in August: 17.8 days
The month with the most sunshine days is September (19.8 days).
The month with the least sunshine days is April (12.8 days).
Average UV index in August
Mercer, 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 January and December (UV index 1).
Average cloud cover in August
Mercer, ND
- Average cloud cover in August: 22
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in August
Mercer, 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).





