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
In August, the average high-temperature registers at a still moderately hot 83.3°F (28.5°C), nearly identical to July's 84.4°F (29.1°C). During August nights, Merwin witnesses a consistent average temperature of 64.2°F (17.9°C).Heat index
The heat index value during August is estimated at a tropical 89.6°F (32°C). Prolonged activity during exposure might result in a state of fatigue and cause heat cramps.Evaluating the heat index requires understanding its values in the shade and with gentle winds. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', reflects the feeling of heat when considering both air temperature and humidity. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
August through October, with an average relative humidity of 75%, are the least humid months.Rainfall
In Merwin, in August, during 12.9 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. Throughout the year, in Merwin, Ohio, there are 139.9 rainfall days, and 18.11" (460mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Merwin, the average length of the day in August is 13h and 39min.On the first day of the month, sunrise is at 6:38 am and sunset at 8:48 pm. On the last day of August, in Merwin, sunrise is at 7:05 am and sunset at 8:08 pm EDT.
Sunshine
In August, the average sunshine is 10.2h.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 vulnerability from exposure to the Sun's UV radiation for the average person.Note: An average maximum UV index of 6 in August leads to these recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in August?
What is the least humid month?
What is the average humidity in August?
How much does it rain in August?
When it does not snow?
How many hours of daylight does Merwin have in August?
When are sunrise and sunset in August?
How long on average sun shines in August in Merwin?
When is the highest UV index?
What is the UV index intensity in August?
Average temperature in August
Merwin, OH
- Average high temperature in August: 83.3°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in August: 64.2°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 (23.5°F).
Average pressure in August
Merwin, OH
- Average pressure in August: 29.99"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in August
Merwin, OH
- Average wind speed in August: 5.1mph
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 (5.1mph).
Average humidity in August
Merwin, OH
- Average humidity in August: 75%
The months with the highest relative humidity are January, February and December (81%).
The months with the lowest relative humidity are August, September and October (75%).
Average rainfall in August
Merwin, OH
- Average rainfall in August: 1.38"
The wettest month (with the highest rainfall) is May (2.05").
The driest month (with the least rainfall) is September (0.94").
Average rainfall days in August
Merwin, OH
- Average rainfall days in August: 12.9 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in August
Merwin, OH
- Average snowfall in August: 0"
The month with the highest snowfall is March (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Merwin, OH
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (6.9 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
Merwin, OH
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in August: 10h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in August
Merwin, OH
- Average sunshine days in August: 15.7 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in August
Merwin, 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
Merwin, OH
- Average cloud cover in August: 28
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in August
Merwin, OH
- 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).
Merwin, Ohio, USA
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