August weather forecast
Berwyn, PA

Share

Weather in August

August, the last month of the summer in Berwyn, is another warm month, with an average temperature ranging between min 66°F (18.9°C) and max 82.9°F (28.3°C).

Temperature

August observes an average high-temperature of a still moderately hot 82.9°F (28.3°C), marking an insignificant difference from July's 85.3°F (29.6°C). During August, Berwyn's temperature falls to a steady low-temperature average of 66°F (18.9°C).

Heat index

The heat index value during August is estimated at a hot 89.6°F (32°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.
Always consider that heat index estimations are for light winds and places in the shade. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The months with the lowest humidity are April, July and August, with an average relative humidity of 73%.

Rainfall

August is the month with the most rainfall in Berwyn. Rain falls for 15.4 days and accumulates 2.72" (69mm) of precipitation.

Snowfall

In Berwyn, snow does not fall in June through September.

Daylight

The average length of the day in August is 13h and 43min.
On the first day of the month, sunrise is at 6:00 am and sunset at 8:15 pm. On the last day of August, sunrise is at 6:29 am and sunset at 7:34 pm EDT.

Sunshine

In Berwyn, the average sunshine in August is 9.8h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Berwyn. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In August, the average maximum UV index of 6 translates into the following recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
[Resources]

Frequently asked questions

How hot is it in Berwyn in August?

In Berwyn, in August, the average high-temperature is 82.9°F (28.3°C), and the average low-temperature is 66°F (18.9°C). The average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, in August is estimated at 89.6°F (32°C).

What are the least humid months in Berwyn?

April, July and August, with an average relative humidity of 73%, are the least humid months.

What is the average humidity in August in Berwyn?

The average relative humidity in August in Berwyn, Pennsylvania, is 73%.

What is the rainiest month in Berwyn?

The month with the most rainfall in Berwyn is August, when the rain falls for 15.4 days and typically aggregates up to 2.72" (69mm) of precipitation.

How many days does it rain in August in Berwyn?

In Berwyn, Pennsylvania, in August, during 15.4 rainfall days, 2.72" (69mm) of precipitation is typically accumulated.

When it does not snow in Berwyn?

June through September are months without snowfall in Berwyn.

What is the average length of the day in August in Berwyn?

The average day length in August in Berwyn, Pennsylvania, is 13h and 43min.

When are sunrise and sunset in August in Berwyn?

On the first day of August in Berwyn, sunrise is at 6:00 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:34 pm EDT.

How long on average sun shines in August in Berwyn?

The average sunshine duration in August in Berwyn is 9.8h.

What is the month with the highest UV index in Berwyn?

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

What is the UV index intensity in August in Berwyn?

In August, the average daily maximum UV index in Berwyn is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability 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
Berwyn, PA

Average temperature in August - Berwyn, PA
  • Average high temperature in August: 82.9°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (36.5°F).

  • Average low temperature in August: 66°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

[Resources]

Average pressure in August
Berwyn, PA

Average pressure in August - Berwyn, 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).

[Resources]

Average wind speed in August
Berwyn, PA

Average wind speed in August - Berwyn, PA
  • Average wind speed in August: 5.3mph

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

[Resources]

Average humidity in August
Berwyn, PA

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

The months with the highest relative humidity are February and October (79%).
The months with the lowest relative humidity are April, July and August (73%).

[Resources]

Average rainfall in August
Berwyn, PA

Average rainfall in August - Berwyn, PA
  • Average rainfall in August: 2.72"

The wettest month (with the highest rainfall) is August (2.72").
The driest months (with the least rainfall) are January, February and November (1.3").

[Resources]

Average rainfall days in August
Berwyn, PA

Average rainfall days in August - Berwyn, PA
  • Average rainfall days in August: 15.4 days

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (6.3 days).

[Resources]

Average snowfall in August
Berwyn, PA

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

The month with the highest snowfall is March (1.93").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in August
Berwyn, PA

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

The month with the highest number of snowfall days is January (6.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

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

Average daylight in August / Average sunshine in August - Berwyn, 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: 9h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

[Resources]

Average sunshine days in August
Berwyn, PA

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

The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is July (12.7 days).

[Resources]

Average UV index in August
Berwyn, PA

Average UV index in August - Berwyn, 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).

[Resources]

Average cloud cover in August
Berwyn, PA

Average cloud cover in August - Berwyn, PA
  • Average cloud cover in August: 35

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 33).

[Resources]

Average visibility in August
Berwyn, PA

Average visibility in August - Berwyn, 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).

[Resources]

Berwyn, Pennsylvania, USA

Weather forecast for your location

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