August weather forecastOskaloosa, IA
August
Weather in August
August in Oskaloosa continues to experience high temperatures, making it one of the hottest months of the year. However, it’s somewhat cooler than July, providing a slight relief to the residents. Notably, this month experiences a decrease in wind speed, resulting in calm, hot days. As summer continues, people still enjoy various outdoor activities, while indoor activities also gain momentum to beat the summer heat.Temperature
August's onset in Oskaloosa, Iowa, records an average high-temperature of a still moderately hot 81.1°F (27.3°C), a near match to July's 82.2°F (27.9°C). In Oskaloosa, in August, the average low-temperature is a comfortable 62.6°F (17°C).Heat index
August's heat index is calculated to be a hot 86°F (30°C). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is found by incorporating humidity levels into the air temperature measurement. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. 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 in Oskaloosa is 79%.Rainfall
In Oskaloosa, in August, during 14.2 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. Throughout the year, there are 141.1 rainfall days, and 28.5" (724mm) of precipitation is accumulated.Snowfall
In Oskaloosa, snow does not fall in June through September.Daylight
In August, the average length of the day in Oskaloosa is 13h and 47min.On the first day of the month, sunrise is at 6:06 am and sunset at 8:27 pm. On the last day of August, in Oskaloosa, sunrise is at 6:36 am and sunset at 7:44 pm CDT.
Sunshine
The average sunshine in August is 9.9h.UV index
The average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily high UV index of 5 in August leads to these guidelines:
Act with care - The need to guard against sun damage is communicated. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Oskaloosa, IA
- Average high temperature in August: 81.1°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 (28.6°F).
- Average low temperature in August: 62.6°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 (15.3°F).
Average pressure in August
Oskaloosa, IA
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in August
Oskaloosa, IA
- Average wind speed in August: 6.9mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity in August
Oskaloosa, IA
- Average humidity in August: 79%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Oskaloosa, IA
- Average rainfall in August: 2.44"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in August
Oskaloosa, IA
- Average rainfall days in August: 14.2 days
The month with the highest number of rainy days is June (18.6 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in August
Oskaloosa, IA
- Average snowfall in August: 0"
The month with the highest snowfall is February (4.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Oskaloosa, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Oskaloosa, IA
- Average daylight in August: 13h and 48min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 9h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in August
Oskaloosa, IA
- Average sunshine days in August: 14.4 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is June (9 days).
Average UV index in August
Oskaloosa, IA
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in August
Oskaloosa, IA
- Average cloud cover in August: 29
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are August and September (Cloud cover 29).
Average visibility in August
Oskaloosa, IA
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
