August weather forecast
Saint Johns, IN

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Weather in August

The last month of the summer, August, is also a moderately hot month in Saint Johns, Indiana, with an average temperature ranging between min 61°F (16.1°C) and max 78.4°F (25.8°C).

Temperature

As Saint Johns, Indiana, steps into August, the average high-temperature is measured at a still warm 78.4°F (25.8°C), displaying minor differences from July's 80.1°F (26.7°C). Saint Johns's average low-temperature in August is measured at a comfortable 61°F (16.1°C).

Humidity

In Saint Johns, the average relative humidity in August is 82%.

Rainfall

In Saint Johns, in August, it is raining for 15.8 days, with typically 2.09" (53mm) of accumulated precipitation. In Saint Johns, during the entire year, the rain falls for 157.1 days and collects up to 24.09" (612mm) of precipitation.

Snowfall

In Saint Johns, snow does not fall in June through September.

Daylight

The average length of the day in August is 13h and 47min.
On the first day of August in Saint Johns, sunrise is at 6:36 am and sunset at 8:57 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 8:14 pm EDT.

Sunshine

The average sunshine in August in Saint Johns is 9.5h.

UV index

The average daily maximum UV index in August in Saint Johns is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index, 5 during August, leads to the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
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 Saint Johns in August?

The high-temperature, in August, in Saint Johns, records 78.4°F (25.8°C), while the low-temperature is 61°F (16.1°C).

What is the average humidity in August in Saint Johns?

In August, the average relative humidity in Saint Johns is 82%.

How much does it rain in Saint Johns in August?

In August, in Saint Johns, Indiana, the rain falls for 15.8 days. Throughout August, 2.09" (53mm) of precipitation is accumulated.

When it does not snow in Saint Johns?

In Saint Johns, snow does not fall in June through September.

How many hours of daylight does Saint Johns have in August?

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

What time are sunrise and sunset in August in Saint Johns?

In August, on the first day of the month, sunrise is at 6:36 am and sunset at 8:57 pm. On the last day of the month, in Saint Johns, Indiana, sunrise is at 7:06 am and sunset at 8:14 pm EDT.

How many hours of sunshine does Saint Johns have in August?

In Saint Johns, the average sunshine duration in August is 9.5h.

What is the UV index reading in August in Saint Johns?

In Saint Johns, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to 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
Saint Johns, IN

Average temperature in August - Saint Johns, IN
  • Average high temperature in August: 78.4°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in August: 61°F

The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

Average pressure in August
Saint Johns, IN

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

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

Average wind speed in August
Saint Johns, IN

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

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 (6.3mph).

Average humidity in August
Saint Johns, IN

Average humidity in August - Saint Johns, IN
  • Average humidity in August: 82%

The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (76%).

Average rainfall in August
Saint Johns, IN

Average rainfall in August - Saint Johns, IN
  • Average rainfall in August: 2.09"

The wettest month (with the highest rainfall) is May (3.11").
The driest months (with the least rainfall) are January and December (1.34").

Average rainfall days in August
Saint Johns, IN

Average rainfall days in August - Saint Johns, IN
  • Average rainfall days in August: 15.8 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (6.8 days).

Average snowfall in August
Saint Johns, IN

Average snowfall in August - Saint Johns, IN
  • Average snowfall in August: 0"

The month with the highest snowfall is February (3.27").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Saint Johns, IN

Average snowfall days in August - Saint Johns, IN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Saint Johns, IN

Average daylight in August / Average sunshine in August - Saint Johns, 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 18min).

  • Average sunshine in August: 9h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

Average sunshine days in August
Saint Johns, IN

Average sunshine days in August - Saint Johns, IN
  • Average sunshine days in August: 11.7 days

The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is February (9.9 days).

Average UV index in August
Saint Johns, IN

Average UV index in August - Saint Johns, IN
  • Average UV index in August: 5

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

Average cloud cover in August
Saint Johns, IN

Average cloud cover in August - Saint Johns, IN
  • Average cloud cover in August: 33

The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 33).

Average visibility in August
Saint Johns, IN

Average visibility in August - Saint Johns, IN
  • Average visibility in August: 5mi

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

Saint Johns, Indiana, USA

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