August weather forecast
Griffith, IN

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Weather in August

The last month of the summer, August, is also a moderately hot month in Griffith, Indiana, with an average temperature ranging between min 64°F (17.8°C) and max 79.5°F (26.4°C).

Temperature

A minimal variation is noted in Griffith's average high-temperature at the onset of August, reaching a still moderately hot 79.5°F (26.4°C) from July's 81.5°F (27.5°C). Griffith experiences an average temperature drop to an enjoyable 64°F (17.8°C) during August nights.

Humidity

In Griffith, the average relative humidity in August is 79%.

Rainfall

In Griffith, during August, the rain falls for 15.8 days and regularly aggregates up to 2.48" (63mm) of precipitation. Throughout the year, there are 146.6 rainfall days, and 23.31" (592mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in August is 13h and 47min.
On the first day of August, sunrise is at 5:45 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 7:23 pm CDT.

Sunshine

August has the most sunshine of the year, with an average of 9.8h of sunshine.

UV index

The average daily maximum UV index in August in Griffith is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 5 in August translates into the following recommendations:
Make use of precautions - It is urged to ward off sun damage. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Jun 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Griffith in August?

In August, in Griffith, the average high-temperature is 79.5°F (26.4°C), and the average low-temperature is 64°F (17.8°C). In July, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 87.8°F (31°C).

What is the average humidity in August?

The average relative humidity in August is 79%.

How many days does it rain in August?

In Griffith, in August, during 15.8 rainfall days, 2.48" (63mm) of precipitation is typically accumulated.

When it does not snow?

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

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

In Griffith, the average day length in August is 13h and 47min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 5:45 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 7:23 pm CDT.

What month has the most sunshine?

The month with the most sunshine is August, with an average of 9.8h of sunshine.

How many hours of sunshine does Griffith have in August?

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

What is the UV index reading in August?

In Griffith, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Griffith, IN

Average temperature in August - Griffith, IN
  • Average high temperature in August: 79.5°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (30°F).

  • Average low temperature in August: 64°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in August
Griffith, IN

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

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in August
Griffith, IN

Average wind speed in August - Griffith, IN
  • Average wind speed in August: 6.3mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in August
Griffith, IN

Average humidity in August - Griffith, IN
  • Average humidity in August: 79%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).

Average rainfall in August
Griffith, IN

Average rainfall in August - Griffith, IN
  • Average rainfall in August: 2.48"

The wettest month (with the highest rainfall) is June (3.15").
The driest month (with the least rainfall) is November (1.06").

Average rainfall days in August
Griffith, IN

Average rainfall days in August - Griffith, IN
  • Average rainfall days in August: 15.8 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (5.3 days).

Average snowfall in August
Griffith, IN

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

The month with the highest snowfall is February (3.5").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Griffith, IN

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

The month with the highest number of snowfall days is January (12.4 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
Griffith, IN

Average daylight in August / Average sunshine in August - Griffith, IN
  • 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 12min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in August
Griffith, IN

Average sunshine days in August - Griffith, IN
  • Average sunshine days in August: 11.8 days

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is July (10.2 days).

Average UV index in August
Griffith, IN

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

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

Average cloud cover in August
Griffith, IN

Average cloud cover in August - Griffith, IN
  • Average cloud cover in August: 32

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in August
Griffith, IN

Average visibility in August - Griffith, IN
  • Average visibility in August: 6mi

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

Griffith, Indiana, USA

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