August weather forecastSaint Lawrence, SD
August
Weather in August
August, the last month of the summer in Saint Lawrence, is also a moderately hot month, with an average temperature varying between 62.1°F (16.7°C) and 84°F (28.9°C).Temperature
Saint Lawrence registers an average high-temperature of a still warm 84°F (28.9°C) with the arrival of August, showing minor deviation from the preceding month. During August, Saint Lawrence's temperature records a considerable difference from its daily highs to an average low of 62.1°F (16.7°C).Heat index
August's average heat index is appraised at a tropical 87.8°F (31°C). Exhaustion might be the outcome of enduring exposure and continuous activity, with a risk of heat cramps.Heat index's context suggests values are appropriate for shady areas and slight breezes. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Humidity
In August, the average relative humidity in Saint Lawrence, South Dakota, is 61%.Rainfall
In Saint Lawrence, South Dakota, in August, it is raining for 11.8 days, with typically 1.69" (43mm) of accumulated precipitation. In Saint Lawrence, during the entire year, the rain falls for 97.3 days and collects up to 16.73" (425mm) of precipitation.Snowfall
June through September are months without snowfall in Saint Lawrence.Daylight
In Saint Lawrence, the average length of the day in August is 13h and 59min.On the first day of the month, sunrise is at 6:23 am and sunset at 9:00 pm. On the last day of August, sunrise is at 6:58 am and sunset at 8:13 pm CDT.
Sunshine
In Saint Lawrence, the average sunshine in August is 10.6h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Saint Lawrence. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index, 6 during August, leads to the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Saint Lawrence, SD
- Average high temperature in August: 84°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in August: 62.1°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).
Average pressure in August
Saint Lawrence, SD
- Average pressure in August: 29.91"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in August
Saint Lawrence, SD
- Average wind speed in August: 8.9mph
The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).
Average humidity in August
Saint Lawrence, SD
- Average humidity in August: 61%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is September (60%).
Average rainfall in August
Saint Lawrence, SD
- Average rainfall in August: 1.69"
The wettest month (with the highest rainfall) is July (3.07").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in August
Saint Lawrence, SD
- Average rainfall days in August: 11.8 days
The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in August
Saint Lawrence, SD
- Average snowfall in August: 0"
The month with the highest snowfall is February (4.21").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Saint Lawrence, SD
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and February (10.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Saint Lawrence, 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: 10h and 36min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in August
Saint Lawrence, SD
- Average sunshine days in August: 16.3 days
The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in August
Saint Lawrence, SD
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in August
Saint Lawrence, SD
- Average cloud cover in August: 25
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 24).
Average visibility in August
Saint Lawrence, 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).





