August weather forecast
New Castle, PA

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Weather in August

August brings a subtle decrease in temperature, signaling the nearing end of summer. While the descent from July's peak of 82°F (27.8°C) to 80.6°F (27°C) in this month is only slight, it indicates the gradual transition to the cooler months. Sunshine continues to dominate the days, providing residents with plenty of opportunities for outdoor activities. Thanks to the warmth and clear skies, August is a favorable time for water sports and late summer festivals.

Temperature

New Castle, Pennsylvania, registers an average high-temperature of a still moderately hot 80.6°F (27°C) with the arrival of August, showing minor deviation from the preceding month. A significant drop from the day's peak to an average low-temperature of 59°F (15°C) is noted during the nights in August.

Heat index

The average heat index in August is estimated at a hot 86°F (30°C). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely vital to babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.

Humidity

The months with the lowest humidity in New Castle are April through August, with an average relative humidity of 78%.

Rainfall

In New Castle, during August, the rain falls for 16.3 days and regularly aggregates up to 2.48" (63mm) of precipitation. In New Castle, Pennsylvania, during the entire year, the rain falls for 177.6 days and collects up to 34.92" (887mm) of precipitation.

Snowfall

In New Castle, Pennsylvania, snow does not fall in June through September.

Daylight

In New Castle, the average length of the day in August is 13h and 46min.
On the first day of August, sunrise is at 6:18 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 7:55 pm EDT.

Sunshine

The month with the most sunshine in New Castle, Pennsylvania, is August, with an average of 10h of sunshine.

UV index

In New Castle, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: In August, the maximum UV index of 5 suggests this advice:
Prioritize safety - Recommendations to avert sunburn are shared. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
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Frequently asked questions

What is the average August temperature in New Castle?

During August, New Castle experiences an average high-temperature of 80.6°F (27°C) and a low-temperature of 59°F (15°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is estimated at 86°F (30°C).

What is the least humid month in New Castle?

The months with the lowest humidity in New Castle, Pennsylvania, are April through August, with an average relative humidity of 78%.

What is the average humidity in August in New Castle?

In New Castle, Pennsylvania, the average relative humidity in August is 78%.

How many days does it rain in August in New Castle?

In New Castle, during August, the rain falls for 16.3 days and regularly aggregates up to 2.48" (63mm) of precipitation.

When it does not snow in New Castle?

June through September are months without snowfall in New Castle.

How many hours of daylight does New Castle have in August?

The average day length in August in New Castle, Pennsylvania, is 13h and 46min.

When are sunrise and sunset in August in New Castle?

On the first day of August in New Castle, Pennsylvania, sunrise is at 6:18 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 7:55 pm EDT.

What month has the most sunshine in New Castle?

With an average of 10h of sunshine, August has the most sunshine of the year in New Castle, Pennsylvania.

How many hours of sunshine does New Castle have in August?

In New Castle, Pennsylvania, the average sunshine duration in August is 10h.

What is the UV index intensity in August in New Castle?

In August, the average daily maximum UV index in New Castle 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
New Castle, PA

Average temperature in August - New Castle, PA
  • Average high temperature in August: 80.6°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in August: 59°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

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Average pressure in August
New Castle, PA

Average pressure in August - New Castle, 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
New Castle, PA

Average wind speed in August - New Castle, PA
  • Average wind speed in August: 5.2mph

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is July (5.1mph).

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Average humidity in August
New Castle, PA

Average humidity in August - New Castle, PA
  • Average humidity in August: 78%

The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, May, June, July and August (78%).

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Average rainfall in August
New Castle, PA

Average rainfall in August - New Castle, PA
  • Average rainfall in August: 2.48"

The wettest month (with the highest rainfall) is June (3.66").
The driest month (with the least rainfall) is November (2.24").

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Average rainfall days in August
New Castle, PA

Average rainfall days in August - New Castle, PA
  • Average rainfall days in August: 16.3 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (8.8 days).

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Average snowfall in August
New Castle, PA

Average snowfall in August - New Castle, PA
  • Average snowfall in August: 0"

The month with the highest snowfall is January (6.93").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
New Castle, PA

Average snowfall days in August - New Castle, PA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (18.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
New Castle, PA

Average daylight in August / Average sunshine in August - New Castle, PA
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 10h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).

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Average sunshine days in August
New Castle, PA

Average sunshine days in August - New Castle, PA
  • Average sunshine days in August: 12.8 days

The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is February (7 days).

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Average UV index in August
New Castle, PA

Average UV index in August - New Castle, PA
  • Average UV index in August: 5

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

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Average cloud cover in August
New Castle, PA

Average cloud cover in August - New Castle, PA
  • Average cloud cover in August: 36

The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 36).

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Average visibility in August
New Castle, PA

Average visibility in August - New Castle, PA
  • Average visibility in August: 5mi

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February and December (4mi).

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New Castle, Pennsylvania, USA

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