August weather forecast
Harley, IN

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Weather in August

August, the last month of the summer in Harley, is also a moderately hot month, with an average temperature fluctuating between 62.2°F (16.8°C) and 79.7°F (26.5°C).

Temperature

The onset of August brings with it an average high-temperature of a still moderately hot 79.7°F (26.5°C), showing a negligible variation from the month before. In the month of August, the nighttime temperature dips to a steady average of 62.2°F (16.8°C).

Humidity

In Harley, the average relative humidity in August is 83%.

Rainfall

In Harley, in August, during 13.5 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. In Harley, during the entire year, the rain falls for 143.1 days and collects up to 20.91" (531mm) of precipitation.

Snowfall

May through September are months without snowfall in Harley.

Daylight

In Harley, Indiana, the average length of the day in August is 13h and 44min.
On the first day of August, sunrise is at 6:44 am and sunset at 9:01 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 8:19 pm EDT.

Sunshine

In Harley, the average sunshine in August is 9.2h.

UV index

The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 5 in August translates into this advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures?

In Harley, in August, the average high-temperature is 79.7°F (26.5°C), and the average low-temperature is 62.2°F (16.8°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 87.8°F (31°C).

What is the average humidity in August?

In August, the average relative humidity is 83%.

How much does it rain in August?

In Harley, Indiana, during August, the rain falls for 13.5 days and regularly aggregates up to 1.85" (47mm) of precipitation.

When it does not snow in Harley?

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

What is the average length of the day in August?

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

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 6:44 am and sunset at 9:01 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 8:19 pm EDT.

How many hours of sunshine does Harley have in August?

In Harley, Indiana, the average sunshine duration in August is 9.2h.

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
Harley, IN

Average temperature in August - Harley, IN
  • Average high temperature in August: 79.7°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in August: 62.2°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).

Average pressure in August
Harley, IN

Average pressure in August - Harley, IN
  • Average pressure in August: 29.98"Hg

The months with the highest atmospheric pressure are January and November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in August
Harley, IN

Average wind speed in August - Harley, IN
  • Average wind speed in August: 6.2mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in August
Harley, IN

Average humidity in August - Harley, IN
  • Average humidity in August: 83%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

Average rainfall in August
Harley, IN

Average rainfall in August - Harley, IN
  • Average rainfall in August: 1.85"

The wettest month (with the highest rainfall) is April (2.64").
The driest month (with the least rainfall) is December (1.18").

Average rainfall days in August
Harley, IN

Average rainfall days in August - Harley, IN
  • Average rainfall days in August: 13.5 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (6 days).

Average snowfall in August
Harley, IN

Average snowfall in August - Harley, IN
  • Average snowfall in August: 0"

The month with the highest snowfall is February (2.44").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Harley, IN

Average snowfall days in August - Harley, IN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Harley, IN

Average daylight in August / Average sunshine in August - Harley, IN
  • 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 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in August
Harley, IN

Average sunshine days in August - Harley, IN
  • Average sunshine days in August: 13.1 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (11.2 days).

Average UV index in August
Harley, IN

Average UV index in August - Harley, IN
  • Average UV index in August: 5

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

Average cloud cover in August
Harley, IN

Average cloud cover in August - Harley, IN
  • Average cloud cover in August: 33

The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are June and August (Cloud cover 33).

Average visibility in August
Harley, IN

Average visibility in August - Harley, IN
  • Average visibility in August: 5mi

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

Harley, Indiana, USA

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