August weather forecast
Greenfield, PA

Share

Weather in August

August, the last month of the summer in Greenfield, is another warm month, with an average temperature fluctuating between 82.2°F (27.9°C) and 61.2°F (16.2°C).

Temperature

August's arrival brings an average high-temperature of a still warm 82.2°F (27.9°C), demonstrating subtle variation from the preceding month. Greenfield anticipates an average minimum temperature of 61.2°F (16.2°C) in the month of August.

Heat index

The heat index for August is evaluated at a hot 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. 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 'feels like' or 'real feel', is achieved by amalgamating air temperature with the relative humidity readings. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.

Humidity

The least humid month is August, with an average relative humidity of 73%.

Rainfall

In Greenfield, in August, it is raining for 16.3 days, with typically 1.97" (50mm) of accumulated precipitation. Throughout the year, there are 164 rainfall days, and 26.89" (683mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In Greenfield, the average length of the day in August is 13h and 44min.
On the first day of the month, sunrise is at 6:17 am and sunset at 8:34 pm. On the last day of August, sunrise is at 6:46 am and sunset at 7:52 pm EDT.

Sunshine

With an average of 10.1h of sunshine, August has the most sunshine of the year.

UV index

In August, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily high UV index of 5 in August leads to these guidelines:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in August?

August temperatures vary between a high-temperature of 82.2°F (27.9°C) and a low-temperature of 61.2°F (16.2°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is evaluated at 87.8°F (31°C).

What is the least humid month?

The least humid month is August, with an average relative humidity of 73%.

What is the average humidity in August?

The average relative humidity in August is 73%.

How many days does it rain in August?

In Greenfield, during August, the rain falls for 16.3 days and regularly aggregates up to 1.97" (50mm) of precipitation.

When it does not snow?

In Greenfield, snow does not fall in May through September.

What is the average length of the day in August?

In August, the average day length is 13h and 44min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:17 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 7:52 pm EDT.

What month has the most sunshine?

With an average of 10.1h of sunshine, August has the most sunshine of the year in Greenfield.

How long on average sun shines in August?

In August, the average sunshine duration is 10.1h.

What is the UV index reading in August?

In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to 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
Greenfield, PA

Average temperature in August - Greenfield, PA
  • Average high temperature in August: 82.2°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in August: 61.2°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

Average pressure in August
Greenfield, PA

Average pressure in August - Greenfield, PA
  • Average pressure in August: 30"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in August
Greenfield, PA

Average wind speed in August - Greenfield, PA
  • Average wind speed in August: 4.7mph

The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in August
Greenfield, PA

Average humidity in August - Greenfield, PA
  • Average humidity in August: 73%

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (73%).

Average rainfall in August
Greenfield, PA

Average rainfall in August - Greenfield, PA
  • Average rainfall in August: 1.97"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is November (1.61").

Average rainfall days in August
Greenfield, PA

Average rainfall days in August - Greenfield, PA
  • Average rainfall days in August: 16.3 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (8.5 days).

Average snowfall in August
Greenfield, PA

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

The month with the highest snowfall is January (3.46").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Greenfield, PA

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

The month with the highest number of snowfall days is January (16.3 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
Greenfield, PA

Average daylight in August / Average sunshine in August - Greenfield, 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 18min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

Average sunshine days in August
Greenfield, PA

Average sunshine days in August - Greenfield, PA
  • Average sunshine days in August: 13 days

The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is February (9.5 days).

Average UV index in August
Greenfield, PA

Average UV index in August - Greenfield, PA
  • Average UV index in August: 5

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

Average cloud cover in August
Greenfield, PA

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

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in August
Greenfield, PA

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

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

Greenfield, Pennsylvania, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location