August weather forecastLead, SD
August
Weather in August
In August, Lead is engulfed by summer's warm embrace. While temperatures drop a notch from July's peak, the weather remains warmer than the subsequent month of September. The month sees a decrease in rainfall, with a drop of 0.19" (5mm) from the previous month, marking a period of relative dryness. Days are still pleasantly long, with plenty of sunshine to bask in. The sultry days and cool nights personify the splendor of summer in August.Temperature
Shifting into August, Lead records an average high-temperature of a still moderately hot 80.1°F (26.7°C), presenting minor fluctuations compared to the previous month. Nightfall in August introduces a considerable dip in temperature, settling at an average of 58.5°F (14.7°C).Humidity
August and September, with an average relative humidity of 51%, are the least humid months.Rainfall
In Lead, during August, the rain falls for 12.2 days and regularly aggregates up to 1.5" (38mm) of precipitation. Throughout the year, in Lead, there are 96.1 rainfall days, and 14.02" (356mm) of precipitation is accumulated.Snowfall
In Lead, snow does not fall in July and August.Daylight
In August, the average length of the day in Lead is 13h and 58min.On the first day of the month, sunrise is at 5:43 am and sunset at 8:19 pm. On the last day of August, in Lead, sunrise is at 6:17 am and sunset at 7:32 pm MDT.
Sunshine
The month with the most sunshine is August, with an average of 11.7h of sunshine.UV index
In Lead, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: A daily high UV index of 5 in August leads to these guidelines:
Exercise prevention - Precautions against solar damage are endorsed. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Lead, SD
- Average high temperature in August: 80.1°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is December (29.7°F).
- Average low temperature in August: 58.5°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is February (15.4°F).
Average pressure in August
Lead, SD
- Average pressure in August: 29.89"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in August
Lead, SD
- Average wind speed in August: 7.6mph
The windiest month (with the highest average wind speed) is October (9.9mph).
The calmest month (with the lowest average wind speed) is August (7.6mph).
Average humidity in August
Lead, SD
- Average humidity in August: 51%
The months with the highest relative humidity are January and February (79%).
The months with the lowest relative humidity are August and September (51%).
Average rainfall in August
Lead, SD
- Average rainfall in August: 1.5"
The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in August
Lead, SD
- Average rainfall days in August: 12.2 days
The month with the highest number of rainy days is June (14.2 days).
The month with the least rainy days is November (2.7 days).
Average snowfall in August
Lead, SD
- Average snowfall in August: 0"
The month with the highest snowfall is April (6.54").
The months with the least snowfall are July and August (0").
Average snowfall days in August
Lead, SD
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in August /
Average sunshine in August
Lead, SD
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in August: 11h and 42min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 54min).
Average sunshine days in August
Lead, SD
- Average sunshine days in August: 13.2 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in August
Lead, SD
- 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, February, March, October, November and December (UV index 2).
Average cloud cover in August
Lead, SD
- Average cloud cover in August: 16
The months with the most cloud cover are February and April (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in August
Lead, SD
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).





