August weather forecast
Johnsonville, IN

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Weather in August

August, the last month of the summer in Johnsonville, is also a moderately hot month, with temperature in the range of an average low of 63.3°F (17.4°C) and an average high of 80.6°F (27°C).

Temperature

Johnsonville's transition from July to August introduces an average high-temperature of a still warm 80.6°F (27°C), marking an insignificant variation from the 81.3°F (27.4°C). Johnsonville experiences a consistent average temperature of 63.3°F (17.4°C) throughout the nights in August.

Heat index

For most parts of August, the heat index is estimated at a tropical 86°F (30°C). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.

Humidity

The average relative humidity in August is 83%.

Rainfall

In Johnsonville, during August, the rain falls for 14.6 days and regularly aggregates up to 2.24" (57mm) of precipitation. In Johnsonville, during the entire year, the rain falls for 151.8 days and collects up to 25.63" (651mm) of precipitation.

Snowfall

In Johnsonville, snow does not fall in May through October.

Daylight

The average length of the day in August is 13h and 43min.
On the first day of August, sunrise is at 6:48 am and sunset at 9:03 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 8:22 pm EDT.

Sunshine

In August, the average sunshine is 9.9h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Guard against overexposure. Protection from sun-induced harm is essential. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Johnsonville in August?

The high-temperature during August is 80.6°F (27°C) and the low-temperature is 63.3°F (17.4°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is estimated at 86°F (30°C).

What is the average humidity in August in Johnsonville?

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

How many days does it rain in August in Johnsonville?

In August, in Johnsonville, Indiana, the rain falls for 14.6 days. Throughout August, 2.24" (57mm) of precipitation is accumulated.

When it does not snow in Johnsonville?

In Johnsonville, snow does not fall in May through October.

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

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

What time are sunrise and sunset in August in Johnsonville?

In August, on the first day of the month, sunrise is at 6:48 am and sunset at 9:03 pm. On the last day of the month, in Johnsonville, sunrise is at 7:17 am and sunset at 8:22 pm EDT.

How many hours of sunshine does Johnsonville have in August?

In August, the average sunshine duration in Johnsonville, Indiana, is 9.9h.

What are the months with the highest UV index in Johnsonville?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index reading in August in Johnsonville?

The average daily maximum UV index in August in Johnsonville is 6. A UV Index value of 6 to 7 symbolizes a high health threat 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
Johnsonville, IN

Average temperature in August - Johnsonville, IN
  • Average high temperature in August: 80.6°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.6°F).

  • Average low temperature in August: 63.3°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

Average pressure in August
Johnsonville, IN

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in August
Johnsonville, IN

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

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in August
Johnsonville, IN

Average humidity in August - Johnsonville, 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
Johnsonville, IN

Average rainfall in August - Johnsonville, IN
  • Average rainfall in August: 2.24"

The wettest month (with the highest rainfall) is April (3.23").
The driest months (with the least rainfall) are February and September (1.38").

Average rainfall days in August
Johnsonville, IN

Average rainfall days in August - Johnsonville, IN
  • Average rainfall days in August: 14.6 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (6.6 days).

Average snowfall in August
Johnsonville, IN

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

The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Johnsonville, IN

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

The month with the highest number of snowfall days is January (10.6 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
Johnsonville, IN

Average daylight in August / Average sunshine in August - Johnsonville, 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 24min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in August
Johnsonville, IN

Average sunshine days in August - Johnsonville, IN
  • Average sunshine days in August: 11.9 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (9.5 days).

Average UV index in August
Johnsonville, IN

Average UV index in August - Johnsonville, IN
  • Average UV index in August: 6

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

Average cloud cover in August
Johnsonville, IN

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

The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are June, August and September (Cloud cover 32).

Average visibility in August
Johnsonville, IN

Average visibility in August - Johnsonville, 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).

Johnsonville, Indiana, USA

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