August weather forecast
Swarthmore, PA

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Weather in August

August, the last month of the summer in Swarthmore, is another warm month, with an average temperature fluctuating between 83.5°F and 67.3°F.

Temperature

With August's advent, Swarthmore, Pennsylvania, sees an average high-temperature of a still warm 83.5°F, subtly shifted from July's 85.6°F. In the month of August, Swarthmore experiences an average low-temperature of 67.3°F.

Heat index

The heat index value during August is estimated at a hot 89.6°F. Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. 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', melds the effects of warmth and moisture to generate a feeling of heat. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.

Humidity

In Swarthmore, Pennsylvania, the average relative humidity in August is 73%.

Rainfall

August is the month with the most rainfall. Rain falls for 16.1 days and accumulates 3.11" of precipitation.

Snowfall

In Swarthmore, snow does not fall in June through October.

Daylight

In August, the average length of the day in Swarthmore, Pennsylvania, is 13h and 42min.
On the first day of August, sunrise is at 6:00 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:35 pm EDT.

Sunshine

In August, the average sunshine is 10.3h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Swarthmore. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: A maximum daily UV index of 6 during August morphs into the following directions:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
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FAQ

How hot is August in Swarthmore?

In Swarthmore, 83.5°F is the average high-temperature and 67.3°F is the average low-temperature during August. 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 estimated at 89.6°F.

What is the average humidity in August in Swarthmore?

The average relative humidity in August is 73%.

What is the wettest month in Swarthmore?

The month with the most rainfall in Swarthmore, Pennsylvania, is August, when the rain falls for 16.1 days and typically aggregates up to 3.11" of precipitation.

How many days does it rain in August in Swarthmore?

In Swarthmore, in August, it is raining for 16.1 days, with typically 3.11" of accumulated precipitation.

When it does not snow in Swarthmore?

June through October are months without snowfall.

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

In August, the average day length in Swarthmore is 13h and 42min.

What time are sunrise and sunset in August in Swarthmore?

In August, on the first day of the month, sunrise is at 6:00 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:35 pm EDT.

How many hours of sunshine does Swarthmore have in August?

The average sunshine duration in August in Swarthmore is 10.3h.

When is the highest UV index in Swarthmore?

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

How high is the UV index in August in Swarthmore?

In August, the average daily maximum UV index in Swarthmore is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
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
Swarthmore, PA

Average temperature in August - Swarthmore, PA
  • Average high temperature in August: 83.5°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in August: 67.3°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

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Average pressure in August
Swarthmore, PA

Average pressure in August - Swarthmore, 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).

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Average wind speed in August
Swarthmore, PA

Average wind speed in August - Swarthmore, PA
  • Average wind speed in August: 5.5mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in August
Swarthmore, PA

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

The months with the highest relative humidity are February, October and December (77%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in August
Swarthmore, PA

Average rainfall in August - Swarthmore, PA
  • Average rainfall in August: 3.11"

The wettest month (with the highest rainfall) is August (3.11").
The driest month (with the least rainfall) is January (1.61").

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Average rainfall days in August
Swarthmore, PA

Average rainfall days in August - Swarthmore, PA
  • Average rainfall days in August: 16.1 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (7.1 days).

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Average snowfall in August
Swarthmore, PA

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

The month with the highest snowfall is March (2.32").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in August
Swarthmore, PA

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

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

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

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in August
Swarthmore, PA

Average sunshine days in August - Swarthmore, PA
  • Average sunshine days in August: 12.5 days

The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is July (11.3 days).

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Average UV index in August
Swarthmore, PA

Average UV index in August - Swarthmore, 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, November and December (UV index 2).

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Average cloud cover in August
Swarthmore, PA

Average cloud cover in August - Swarthmore, PA
  • Average cloud cover in August: 32

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in August
Swarthmore, PA

Average visibility in August - Swarthmore, PA
  • 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).

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Swarthmore, Pennsylvania, USA

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