Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
Irene marks the start of August with an average high-temperature of a still warm 83.3°F (28.5°C), hinting at a slight fluctuation from July's 84.9°F (29.4°C). Irene records a pronounced decline from the day's peak to an average nighttime low-temperature of 61.3°F (16.3°C) throughout August.Heat index
During August, the heat index is computed to be a tropical 89.6°F (32°C). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humidity
In August, the average relative humidity is 70%.Rainfall
In Irene, in August, it is raining for 14.2 days, with typically 2.24" (57mm) of accumulated precipitation. In Irene, during the entire year, the rain falls for 117.9 days and collects up to 21.93" (557mm) of precipitation.Snowfall
In Irene, snow does not fall in June through September.Daylight
The average length of the day in August in Irene is 13h and 53min.On the first day of August, sunrise is at 6:20 am and sunset at 8:49 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 8:04 pm CDT.
Sunshine
In August, the average sunshine in Irene is 10.2h.UV index
The months with the highest UV index in Irene are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In August, the maximum UV index of 6 transforms into these recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Irene in August?
What is the average humidity in August in Irene?
How much does it rain in Irene in August?
When it does not snow in Irene?
What is the average length of the day in August in Irene?
When are sunrise and sunset in August in Irene?
How many hours of sunshine does Irene have in August?
What is the month with the highest UV index in Irene?
What is the UV index reading in August in Irene?
Average temperature in August
Irene, SD
- Average high temperature in August: 83.3°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in August: 61.3°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (12.9°F).
Average pressure in August
Irene, SD
- Average pressure in August: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in August
Irene, SD
- Average wind speed in August: 8.2mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).
Average humidity in August
Irene, SD
- Average humidity in August: 70%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (64%).
Average rainfall in August
Irene, SD
- Average rainfall in August: 2.24"
The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is February (0.59").
Average rainfall days in August
Irene, SD
- Average rainfall days in August: 14.2 days
The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in August
Irene, SD
- Average snowfall in August: 0"
The month with the highest snowfall is December (2.95").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Irene, SD
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Irene, SD
- Average daylight in August: 13h and 5min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in August: 10h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in August
Irene, SD
- Average sunshine days in August: 13.8 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in August
Irene, 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 January (UV index 1).
Average cloud cover in August
Irene, SD
- Average cloud cover in August: 27
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in August
Irene, SD
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Irene, South Dakota, USA
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