August weather forecast
Waterloo, IN

Share

Weather in August

August, the last month of the summer in Waterloo, is another warm month, with an average temperature varying between 78.4°F (25.8°C) and 61°F (16.1°C).

Temperature

Waterloo experiences an average high-temperature of a still moderately hot 78.4°F (25.8°C) in August, subtly different from July's 80.1°F (26.7°C). In Waterloo, the average temperature during the nights of August drops to a refreshing 61°F (16.1°C).

Humidity

The average relative humidity in August in Waterloo is 82%.

Rainfall

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

Snowfall

June through September are months without snowfall.

Daylight

In Waterloo, the average length of the day in August is 13h and 47min.
On the first day of August in Waterloo, Indiana, sunrise is at 6:35 am and sunset at 8:56 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 8:14 pm EDT.

Sunshine

In August, the average sunshine in Waterloo is 9.5h.

UV index

In Waterloo, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 5 during August translates into the following directions:
Be vigilant - Preventing sunburn is recommended. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures in Waterloo?

August temperatures in Waterloo, Indiana, vary between a high-temperature of 78.4°F (25.8°C) and a low-temperature of 61°F (16.1°C).

What is the average humidity in August in Waterloo?

The average relative humidity in August in Waterloo, Indiana, is 82%.

How many days does it rain in August in Waterloo?

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

When it does not snow in Waterloo?

June through September are months without snowfall.

How many hours of daylight does Waterloo have in August?

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

What time are sunrise and sunset in August in Waterloo?

In August, on the first day of the month, sunrise is at 6:35 am and sunset at 8:56 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 8:14 pm EDT.

How many hours of sunshine does Waterloo have in August?

In Waterloo, Indiana, the average sunshine duration in August is 9.5h.

What is the UV index reading in August in Waterloo?

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

Average temperature in August - Waterloo, 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
Waterloo, IN

Average pressure in August - Waterloo, 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
Waterloo, IN

Average wind speed in August - Waterloo, 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
Waterloo, IN

Average humidity in August - Waterloo, 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
Waterloo, IN

Average rainfall in August - Waterloo, 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
Waterloo, IN

Average rainfall days in August - Waterloo, 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
Waterloo, IN

Average snowfall in August - Waterloo, 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
Waterloo, IN

Average snowfall days in August - Waterloo, 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
Waterloo, IN

Average daylight in August / Average sunshine in August - Waterloo, 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 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
Waterloo, IN

Average sunshine days in August - Waterloo, 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
Waterloo, IN

Average UV index in August - Waterloo, 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
Waterloo, IN

Average cloud cover in August - Waterloo, 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
Waterloo, IN

Average visibility in August - Waterloo, 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).

Waterloo, Indiana, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location