August weather forecast
Indiana, PA

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Weather in August

August, the last month of the summer in Indiana, is another warm month, with an average temperature ranging between max 79.2°F (26.2°C) and min 57.7°F (14.3°C).

Temperature

The transition into August shows a subtle variation to a still warm 79.2°F (26.2°C) from July's 81.1°F (27.3°C) in the average high-temperature. August witnesses an average nighttime temperature of 57.7°F (14.3°C).

Humidity

April, June through August, with an average relative humidity of 78%, are the least humid months.

Rainfall

In August, the rain falls for 17.9 days. Throughout August, 2.4" (61mm) of precipitation is accumulated. Throughout the year, there are 183.5 rainfall days, and 33.46" (850mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Indiana.

Daylight

The average length of the day in August is 13h and 44min.
On the first day of August, sunrise is at 6:14 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 7:49 pm EDT.

Sunshine

The months with the most sunshine are July and August, with an average of 9.8h of sunshine.

UV index

The months with the highest UV index in Indiana are May through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 5 during August translates into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in August?

The high-temperature in Indiana during August is 79.2°F (26.2°C) and the low-temperature is 57.7°F (14.3°C). 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, in July is calculated to be 86°F (30°C).

What is the least humid month?

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

What is the average humidity in August?

In August, the average relative humidity is 78%.

How much does it rain in August?

In Indiana, in August, it is raining for 17.9 days, with typically 2.4" (61mm) of accumulated precipitation.

When it does not snow?

June through September are months without snowfall.

How many hours of daylight does Indiana have in August?

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

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:14 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 7:49 pm EDT.

What are the months with the most sunshine?

The months with the most sunshine are July and August, with an average of 9.8h of sunshine.

How many hours of sunshine does Indiana have in August?

In Indiana, the average sunshine duration in August is 9.8h.

What are the months with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 5.

What is the UV index intensity in August?

In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
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
Indiana, PA

Average temperature in August - Indiana, PA
  • Average high temperature in August: 79.2°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in August: 57.7°F

The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (19°F).

Average pressure in August
Indiana, PA

Average pressure in August - Indiana, 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
Indiana, PA

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

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in August
Indiana, PA

Average humidity in August - Indiana, 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, June, July and August (78%).

Average rainfall in August
Indiana, PA

Average rainfall in August - Indiana, PA
  • Average rainfall in August: 2.4"

The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is November (1.93").

Average rainfall days in August
Indiana, PA

Average rainfall days in August - Indiana, PA
  • Average rainfall days in August: 17.9 days

The month with the highest number of rainy days is May (21.5 days).
The month with the least rainy days is January (9.1 days).

Average snowfall in August
Indiana, PA

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

The month with the highest snowfall is January (7.05").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Indiana, PA

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

The month with the highest number of snowfall days is January (17.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

Average sunshine days in August
Indiana, PA

Average sunshine days in August - Indiana, PA
  • Average sunshine days in August: 10.8 days

The month with the most sunshine days is November (13.3 days).
The month with the least sunshine days is February (7.3 days).

Average UV index in August
Indiana, PA

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

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in August
Indiana, PA

Average cloud cover in August - Indiana, PA
  • Average cloud cover in August: 37

The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 37).

Average visibility in August
Indiana, PA

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

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

Indiana, Pennsylvania, USA

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