August weather forecast
Greenfield, OH

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Weather in August

August, the last month of the summer in Greenfield, is another warm month, with an average temperature fluctuating between 81°F (27.2°C) and 62.2°F (16.8°C).

Temperature

The shift into August finds Greenfield at an average high-temperature of a still warm 81°F (27.2°C), closely comparable to July's conditions. During August, the nighttime temperature averages of 62.2°F (16.8°C).

Heat index

In August, the heat index is appraised at a hot 86°F (30°C). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.
Know that the heat index computations account for shaded terrains and slight winds. 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 'feels like', blends air temperature and moisture content to represent the felt temperature to humans. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are particularly meaningful for babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.

Humidity

In Greenfield, the average relative humidity in August is 79%.

Rainfall

In Greenfield, during August, the rain falls for 12.3 days and regularly aggregates up to 1.18" (30mm) of precipitation. In Greenfield, Ohio, during the entire year, the rain falls for 130.7 days and collects up to 13.82" (351mm) of precipitation.

Snowfall

May through September are months without snowfall in Greenfield.

Daylight

The average length of the day in August is 13h and 40min.
On the first day of the month, sunrise is at 6:34 am and sunset at 8:45 pm. On the last day of August, sunrise is at 7:01 am and sunset at 8:05 pm EDT.

Sunshine

With an average of 10.4h of sunshine, August has the most sunshine of the year.

UV index

The months with the highest UV index in Greenfield are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index, 6 in August, converts into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in August in Greenfield?

The high-temperature in Greenfield during August is 81°F (27.2°C) and the low-temperature is 62.2°F (16.8°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 86°F (30°C).

What is the average humidity in August in Greenfield?

In Greenfield, the average relative humidity in August is 79%.

How much does it rain in Greenfield in August?

In Greenfield, in August, during 12.3 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

When it does not snow in Greenfield?

May through September are months without snowfall.

How many hours of daylight does Greenfield have in August?

In Greenfield, Ohio, the average day length in August is 13h and 40min.

What time are sunrise and sunset in August in Greenfield?

On the first day of August, sunrise is at 6:34 am and sunset at 8:45 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 8:05 pm EDT.

What month has the most sunshine in Greenfield?

With an average of 10.4h of sunshine, August has the most sunshine of the year.

How long on average sun shines in August in Greenfield?

In August, the average sunshine duration is 10.4h.

When is the highest UV index in Greenfield?

The months with the highest UV index are June through August, with an average maximum UV index of 6.

What is the UV index intensity in August in Greenfield?

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Greenfield, OH

Average temperature in August - Greenfield, OH
  • Average high temperature in August: 81°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 (34.7°F).

  • Average low temperature in August: 62.2°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in August
Greenfield, OH

Average pressure in August - Greenfield, 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 (29.95"Hg).

Average wind speed in August
Greenfield, OH

Average wind speed in August - Greenfield, OH
  • Average wind speed in August: 5.4mph

The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in August
Greenfield, OH

Average humidity in August - Greenfield, OH
  • Average humidity in August: 79%

The months with the highest relative humidity are January, February and December (82%).
The months with the lowest relative humidity are October and November (75%).

Average rainfall in August
Greenfield, OH

Average rainfall in August - Greenfield, OH
  • Average rainfall in August: 1.18"

The wettest month (with the highest rainfall) is May (1.73").
The driest month (with the least rainfall) is September (0.71").

Average rainfall days in August
Greenfield, OH

Average rainfall days in August - Greenfield, OH
  • Average rainfall days in August: 12.3 days

The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is November (7.5 days).

Average snowfall in August
Greenfield, OH

Average snowfall in August - Greenfield, OH
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.42").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Greenfield, OH

Average snowfall days in August - Greenfield, OH
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Greenfield, OH

Average daylight in August / Average sunshine in August - Greenfield, 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 2min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in August
Greenfield, OH

Average sunshine days in August - Greenfield, OH
  • Average sunshine days in August: 14.9 days

The month with the most sunshine days is November (21 days).
The month with the least sunshine days is July (12 days).

Average UV index in August
Greenfield, OH

Average UV index in August - Greenfield, OH
  • Average UV index in August: 6

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in August
Greenfield, OH

Average cloud cover in August - Greenfield, OH
  • Average cloud cover in August: 28

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in August
Greenfield, OH

Average visibility in August - Greenfield, OH
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).

Greenfield, Ohio, USA

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