August weather forecast
Rockhill, PA

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Weather in August

The last month of the summer, August, is another warm month in Rockhill, Pennsylvania, with temperature in the range of an average high of 81.3°F (27.4°C) and an average low of 58.5°F (14.7°C).

Temperature

As Rockhill welcomes August, the average high-temperature is noted at a still moderately hot 81.3°F (27.4°C), closely aligning with the preceding month. In August, the recorded average low-temperature in Rockhill, Pennsylvania, of 58.5°F (14.7°C), exhibits a significant fall from the daytime highs.

Heat index

The heat index value for August is evaluated at a hot 86°F (30°C). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.
Heat index data is primarily for areas with shade and subjected to light winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical to babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.

Humidity

In Rockhill, the average relative humidity in August is 77%.

Rainfall

In August, the rain falls for 15.6 days. Throughout August, 2.05" (52mm) of precipitation is accumulated. In Rockhill, during the entire year, the rain falls for 164.3 days and collects up to 28.19" (716mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In Rockhill, the average length of the day in August is 13h and 43min.
On the first day of the month, sunrise is at 6:10 am and sunset at 8:25 pm. On the last day of August, sunrise is at 6:38 am and sunset at 7:44 pm EDT.

Sunshine

In Rockhill, the average sunshine in August is 10.2h.

UV index

In August, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: In August, a daily UV index of 5 turns into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Updated: Jul 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in August?

In Rockhill, 81.3°F (27.4°C) is the average high-temperature and 58.5°F (14.7°C) is the average low-temperature during August. In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is evaluated at 86°F (30°C).

What is the average humidity in August in Rockhill?

The average relative humidity in August is 77%.

How much does it rain in August?

In Rockhill, during August, the rain falls for 15.6 days and regularly aggregates up to 2.05" (52mm) of precipitation.

When it does not snow?

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

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

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

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:10 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 7:44 pm EDT.

How many hours of sunshine does Rockhill have in August?

In August, the average sunshine duration is 10.2h.

What is the UV index intensity in August?

In Rockhill, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium 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
Rockhill, PA

Average temperature in August - Rockhill, PA
  • Average high temperature in August: 81.3°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (32.9°F).

  • Average low temperature in August: 58.5°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

Average pressure in August
Rockhill, PA

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

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in August
Rockhill, PA

Average wind speed in August - Rockhill, PA
  • Average wind speed in August: 4.3mph

The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in August
Rockhill, PA

Average humidity in August - Rockhill, PA
  • Average humidity in August: 77%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is July (75%).

Average rainfall in August
Rockhill, PA

Average rainfall in August - Rockhill, PA
  • Average rainfall in August: 2.05"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in August
Rockhill, PA

Average rainfall days in August - Rockhill, PA
  • Average rainfall days in August: 15.6 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (9.5 days).

Average snowfall in August
Rockhill, PA

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

The month with the highest snowfall is January (5.24").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Rockhill, PA

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

The month with the highest number of snowfall days is January (12.2 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
Rockhill, PA

Average daylight in August / Average sunshine in August - Rockhill, 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 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in August
Rockhill, PA

Average sunshine days in August - Rockhill, PA
  • Average sunshine days in August: 12.8 days

The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is May (10.7 days).

Average UV index in August
Rockhill, PA

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

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

Average cloud cover in August
Rockhill, PA

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

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 34).

Average visibility in August
Rockhill, PA

Average visibility in August - Rockhill, PA
  • Average visibility in August: 5mi

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

Rockhill, Pennsylvania, USA

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