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 average high-temperature for August is a still warm 83.7°F (28.7°C), closely aligning with the temperature of the preceding month. In Decatur, August nights cool down to an average of 63.1°F (17.3°C).Heat index
August's average heat index is appraised at a hot 91.4°F (33°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.Heat index data is primarily for areas with shade and subjected to light winds. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
August through November, with an average relative humidity of 76%, are the least humid months in Decatur.Rainfall
In Decatur, during August, the rain falls for 14.5 days and regularly aggregates up to 2.28" (58mm) of precipitation. Throughout the year, in Decatur, there are 171.5 rainfall days, and 32.6" (828mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In August, the average length of the day in Decatur is 13h and 38min.On the first day of the month, sunrise is at 6:36 am and sunset at 8:45 pm. On the last day of August, sunrise is at 7:03 am and sunset at 8:06 pm EDT.
Sunshine
The month with the most sunshine is August, with an average of 10.3h of sunshine.UV index
The months with the highest UV index in Decatur, Ohio, are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: The UV index of 6 during August leads to these advisories:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Decatur during August?
What is the least humid month in Decatur?
What is the average humidity in August in Decatur?
How much does it rain in Decatur in August?
When it does not snow in Decatur?
How many hours of daylight does Decatur have in August?
What time are sunrise and sunset in August in Decatur?
What month has the most sunshine in Decatur?
How long on average sun shines in August in Decatur?
When is the highest UV index in Decatur?
What is the UV index intensity in August in Decatur?
Average temperature in August
Decatur, OH
- Average high temperature in August: 83.7°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in August: 63.1°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure in August
Decatur, OH
- Average pressure in August: 29.99"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in August
Decatur, OH
- Average wind speed in August: 5.2mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in August
Decatur, OH
- Average humidity in August: 76%
The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are August, September, October and November (76%).
Average rainfall in August
Decatur, OH
- Average rainfall in August: 2.28"
The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in August
Decatur, OH
- Average rainfall days in August: 14.5 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (10.2 days).
Average snowfall in August
Decatur, OH
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.4").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Decatur, OH
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.8 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
Decatur, OH
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in August: 10h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in August
Decatur, OH
- Average sunshine days in August: 14.7 days
The month with the most sunshine days is October (17.5 days).
The months with the least sunshine days are May and June (9.8 days).
Average UV index in August
Decatur, OH
- 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
Decatur, OH
- Average cloud cover in August: 28
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in August
Decatur, OH
- Average visibility in August: 6mi
The months with the highest visibility are March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, May and July (5mi).
Decatur, Ohio, USA
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