August weather forecast
Greshville, PA

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Weather in August

The last month of the summer, August, is another warm month in Greshville, Pennsylvania, with an average temperature fluctuating between 63.9°F (17.7°C) and 81.9°F (27.7°C).

Temperature

Greshville registers an average high-temperature of a still moderately hot 81.9°F (27.7°C) with the arrival of August, showing minor deviation from the preceding month. The average temperature during August nights dips to a refreshing 63.9°F (17.7°C).

Heat index

August's heat index is estimated at a tropical 87.8°F (31°C). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.
Heat index specifics point out values are for conditions of shade and a slight breeze. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', integrates the air's temperature and its humidity to showcase the felt temperature by people. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.

Humidity

The average relative humidity in August is 76%.

Rainfall

August is the month with the most rainfall. Rain falls for 15.1 days and accumulates 3.15" (80mm) of precipitation.

Snowfall

In Greshville, snow does not fall in May through October.

Daylight

In Greshville, the average length of the day in August is 13h and 43min.
On the first day of August, sunrise is at 6:01 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:35 pm EDT.

Sunshine

The average sunshine in August in Greshville is 10.1h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 6 during August leads to these advisories:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Greshville in August?

An average high-temperature, in August, in Greshville, is 81.9°F (27.7°C) and the average low-temperature is 63.9°F (17.7°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is estimated at 87.8°F (31°C).

What is the average humidity in August?

In Greshville, the average relative humidity in August is 76%.

What is the rainiest month?

The month with the most rainfall is August, when the rain falls for 15.1 days and typically aggregates up to 3.15" (80mm) of precipitation.

How many days does it rain in August in Greshville?

In Greshville, during August, the rain falls for 15.1 days and regularly aggregates up to 3.15" (80mm) of precipitation.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Greshville have in August?

In Greshville, the average day length in August is 13h and 43min.

What time are sunrise and sunset in August in Greshville?

In August, on the first day of the month, sunrise is at 6:01 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:35 pm EDT.

How long on average sun shines in August?

In Greshville, the average sunshine duration in August is 10.1h.

What is the month with the highest UV index?

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

What is the UV index intensity in August in Greshville?

The average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.
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
Greshville, PA

Average temperature in August - Greshville, PA
  • Average high temperature in August: 81.9°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in August: 63.9°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

Average pressure in August
Greshville, PA

Average pressure in August - Greshville, PA
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in August
Greshville, PA

Average wind speed in August - Greshville, PA
  • Average wind speed in August: 5mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in August
Greshville, PA

Average humidity in August - Greshville, PA
  • Average humidity in August: 76%

The months with the highest relative humidity are February and October (80%).
The months with the lowest relative humidity are April and July (75%).

Average rainfall in August
Greshville, PA

Average rainfall in August - Greshville, PA
  • Average rainfall in August: 3.15"

The wettest month (with the highest rainfall) is August (3.15").
The driest month (with the least rainfall) is September (1.81").

Average rainfall days in August
Greshville, PA

Average rainfall days in August - Greshville, PA
  • Average rainfall days in August: 15.1 days

The months with the highest number of rainy days are May and July (17 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in August
Greshville, PA

Average snowfall in August - Greshville, PA
  • Average snowfall in August: 0"

The month with the highest snowfall is March (3.7").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Greshville, PA

Average snowfall days in August - Greshville, PA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Greshville, PA

Average daylight in August / Average sunshine in August - Greshville, PA
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in August
Greshville, PA

Average sunshine days in August - Greshville, PA
  • Average sunshine days in August: 13.3 days

The month with the most sunshine days is November (21 days).
The month with the least sunshine days is May (12.3 days).

Average UV index in August
Greshville, PA

Average UV index in August - Greshville, PA
  • Average UV index in August: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in August
Greshville, PA

Average cloud cover in August - Greshville, PA
  • Average cloud cover in August: 34

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in August
Greshville, PA

Average visibility in August - Greshville, PA
  • Average visibility in August: 6mi

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

Greshville, Pennsylvania, USA

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