August weather forecastMount Rushmore National Memorial, SD

August
Weather in August
August reflects a minor decrease in averages temperatures from 79.1°F (26.2°C) in July to 78.1°F (25.6°C). Rainfall is further reduced to 2" (51mm) and daylight yet again decreases to 13.9 hours even though it remains the peak of tourist season. Despite the slight dip in temperature, the pleasant weather prevails offering a friendly outdoor environment. August, in general, continues July's trend of warm temperatures and ample sunshine, rendering it a preferred month for visitors.Temperature
Mount Rushmore National Memorial in August witnesses an average high-temperature of a still moderately hot 78.1°F (25.6°C), indicating a slight variation from July's 79.2°F (26.2°C). In Mount Rushmore National Memorial, an average temperature of 57.7°F (14.3°C) is noted during August nights.Rainfall
In Mount Rushmore National Memorial, in August, it is raining for 9.3 days, with typically 2.01" (51mm) of accumulated precipitation. In Mount Rushmore National Memorial, during the entire year, the rain falls for 91.5 days and collects up to 21.57" (548mm) of precipitation.Snowfall
In Mount Rushmore National Memorial, snow does not fall in July and August.Daylight
In Mount Rushmore National Memorial, the average length of the day in August is 13h and 56min.On the first day of August in Mount Rushmore National Memorial, sunrise is at 5:43 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:30 pm MDT.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Mount Rushmore National Memorial, SD
- Average high temperature in August: 78.1°F
The warmest month (with the highest average high temperature) is July (79.1°F).
The month with the lowest average high temperature is December (35.3°F).
- Average low temperature in August: 57.7°F
The month with the highest average low temperature is July (58.9°F).
The coldest month (with the lowest average low temperature) is December (18.1°F).
Average rainfall in August
Mount Rushmore National Memorial, SD
- Average rainfall in August: 2"
The wettest month (with the highest rainfall) is May (4.2").
The driest months (with the least rainfall) are January and December (0.4").
Average rainfall days in August
Mount Rushmore National Memorial, SD
- Average rainfall days in August: 9.3 days
The month with the highest number of rainy days is June (12.6 days).
The month with the least rainy days is December (4.2 days).
Average snowfall in August
Mount Rushmore National Memorial, SD
- Average snowfall in August: 0"
The month with the highest snowfall is April (10.8").
The months with the least snowfall are July and August (0").
Average snowfall days in August
Mount Rushmore National Memorial, SD
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and March (3.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August
Mount Rushmore National Memorial, SD
- Average daylight in August: 13h and 54min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).





