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
The beginning of August records an average high-temperature of a still warm 82.2°F (27.9°C), marking a negligible difference from July's 83.1°F (28.4°C). August nights in Selma observe an average temperature dip to a comfortable 63.5°F (17.5°C).Heat index
In August, the average heat index is appraised at a tropical 89.6°F (32°C). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Humidity
The average relative humidity in August is 78%.Rainfall
In Selma, in August, during 11.5 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. In Selma, during the entire year, the rain falls for 133.4 days and collects up to 26.54" (674mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Selma, the average length of the day in August is 13h and 45min.On the first day of August, sunrise is at 6:05 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:42 pm CDT.
Sunshine
In August, the average sunshine is 10.1h.UV index
The months with the highest UV index 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 unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 6 in August interprets into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Selma in August?
What is the average humidity in August?
How many days does it rain in August?
When it does not snow?
How many hours of daylight does Selma have in August?
When are sunrise and sunset in August in Selma?
How long on average sun shines in August?
What are the months with the highest UV index?
What is the UV index intensity in August?
Average temperature in August
Selma, IA
- Average high temperature in August: 82.2°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in August: 63.5°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).
Average pressure in August
Selma, 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 (29.9"Hg).
Average wind speed in August
Selma, IA
- Average wind speed in August: 7mph
The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in August
Selma, IA
- Average humidity in August: 78%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Selma, IA
- Average rainfall in August: 1.93"
The wettest month (with the highest rainfall) is June (3.86").
The driest month (with the least rainfall) is January (1.26").
Average rainfall days in August
Selma, IA
- Average rainfall days in August: 11.5 days
The months with the highest number of rainy days are May and June (16.8 days).
The months with the least rainy days are January and February (6 days).
Average snowfall in August
Selma, IA
- Average snowfall in August: 0"
The month with the highest snowfall is January (4.84").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Selma, IA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (10.8 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
Selma, IA
- Average daylight in August: 13h and 5min
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: 10h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in August
Selma, IA
- Average sunshine days in August: 18.8 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is June (11.2 days).
Average UV index in August
Selma, 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, November and December (UV index 2).
Average cloud cover in August
Selma, IA
- Average cloud cover in August: 28
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July, August and September (Cloud cover 28).
Average visibility in August
Selma, 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).
Selma, Iowa, USA
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