August weather forecastStrahan, IA
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Strahan, Iowa, with an average temperature fluctuating between 81.9°F (27.7°C) and 63.1°F (17.3°C).Temperature
Strahan's average high-temperature in August is a still warm 81.9°F (27.7°C), indicating a subtle variation from July. The nighttime temperature, during August, averages of 63.1°F (17.3°C).Heat index
In August, the heat index is computed to be a tropical 87.8°F (31°C). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.Note that heat index values are valued for light wind and location in the shade. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Humidity
In Strahan, the average relative humidity in August is 79%.Rainfall
In Strahan, in August, during 13 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. In Strahan, during the entire year, the rain falls for 117.2 days and collects up to 21.77" (553mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Strahan, Iowa, the average length of the day in August is 13h and 46min.On the first day of the month, sunrise is at 6:18 am and sunset at 8:37 pm. On the last day of August, sunrise is at 6:48 am and sunset at 7:55 pm CDT.
Sunshine
In Strahan, the average sunshine in August is 9.8h.UV index
The months with the highest UV index in Strahan are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In August, a regular UV index of 6 translates into these guidelines:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Strahan, IA
- Average high temperature in August: 81.9°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in August: 63.1°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in August
Strahan, IA
- Average pressure in August: 29.95"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in August
Strahan, IA
- Average wind speed in August: 7mph
The windiest months (with the highest average wind speed) are March and April (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in August
Strahan, IA
- Average humidity in August: 79%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is October (68%).
Average rainfall in August
Strahan, IA
- Average rainfall in August: 2.56"
The wettest month (with the highest rainfall) is June (4.06").
The driest months (with the least rainfall) are January and February (0.63").
Average rainfall days in August
Strahan, IA
- Average rainfall days in August: 13 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in August
Strahan, IA
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.68").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Strahan, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Strahan, 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 48min
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 36min).
Average sunshine days in August
Strahan, IA
- Average sunshine days in August: 15.4 days
The month with the most sunshine days is December (23.1 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in August
Strahan, IA
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in August
Strahan, IA
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in August
Strahan, IA
- 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).





