August weather forecast
Monrovia, IN

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Weather in August

The last month of the summer, August, is also a moderately hot month in Monrovia, Indiana, with temperature in the range of an average low of 63.7°F (17.6°C) and an average high of 81.7°F (27.6°C).

Temperature

The onset of August notes an average high-temperature of a still warm 81.7°F (27.6°C), subtly shifted from July's 82°F (27.8°C). Monrovia, during the month of August, experiences an average low-temperature of 63.7°F (17.6°C).

Heat index

In August, the heat index is evaluated at a hot 87.8°F (31°C). Prolonged activity during exposure might result in a state of fatigue and cause heat cramps.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. 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 hold particular importance for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.

Humidity

In August, the average relative humidity is 81%.

Rainfall

In Monrovia, during August, the rain falls for 16 days and regularly aggregates up to 2.64" (67mm) of precipitation. In Monrovia, during the entire year, the rain falls for 171.4 days and collects up to 36.1" (917mm) of precipitation.

Snowfall

In Monrovia, Indiana, snow does not fall in May through September.

Daylight

The average length of the day in August is 13h and 41min.
On the first day of August in Monrovia, sunrise is at 6:46 am and sunset at 8:58 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 8:18 pm EDT.

Sunshine

In Monrovia, Indiana, the average sunshine in August is 9.4h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: A daily maximum UV index of 6 in August translates into the following instructions:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Monrovia in August?

August temperatures in Monrovia vary between a high-temperature of 81.7°F (27.6°C) and a low-temperature of 63.7°F (17.6°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in August is evaluated at 87.8°F (31°C).

What is the average humidity in August in Monrovia?

The average relative humidity in August in Monrovia is 81%.

How much does it rain in Monrovia in August?

In Monrovia, during August, the rain falls for 16 days and regularly aggregates up to 2.64" (67mm) of precipitation.

When it does not snow in Monrovia?

May through September are months without snowfall in Monrovia, Indiana.

How many hours of daylight does Monrovia have in August?

The average day length in August is 13h and 41min.

When is the sunrise / sunset in August in Monrovia?

On the first day of August in Monrovia, Indiana, sunrise is at 6:46 am and sunset at 8:58 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 8:18 pm EDT.

How many hours of sunshine does Monrovia have in August?

In Monrovia, Indiana, the average sunshine duration in August is 9.4h.

What is the month with the highest UV index in Monrovia?

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

What is the UV index intensity in August in Monrovia?

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

Average temperature in August - Monrovia, IN
  • Average high temperature in August: 81.7°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (34.2°F).

  • Average low temperature in August: 63.7°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 (21.2°F).

Average pressure in August
Monrovia, IN

Average pressure in August - Monrovia, 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
Monrovia, IN

Average wind speed in August - Monrovia, IN
  • Average wind speed in August: 5.7mph

The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in August
Monrovia, IN

Average humidity in August - Monrovia, IN
  • Average humidity in August: 81%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (74%).

Average rainfall in August
Monrovia, IN

Average rainfall in August - Monrovia, IN
  • Average rainfall in August: 2.64"

The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is September (2.2").

Average rainfall days in August
Monrovia, IN

Average rainfall days in August - Monrovia, IN
  • Average rainfall days in August: 16 days

The month with the highest number of rainy days is May (20.7 days).
The month with the least rainy days is January (8.8 days).

Average snowfall in August
Monrovia, IN

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

The month with the highest snowfall is January (3.35").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Monrovia, IN

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

The month with the highest number of snowfall days is January (9.6 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
Monrovia, IN

Average daylight in August / Average sunshine in August - Monrovia, IN
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in August: 9h and 2min

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 6min).

Average sunshine days in August
Monrovia, IN

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

The month with the most sunshine days is October (16.6 days).
The month with the least sunshine days is May (8.4 days).

Average UV index in August
Monrovia, IN

Average UV index in August - Monrovia, 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, October, November and December (UV index 2).

Average cloud cover in August
Monrovia, IN

Average cloud cover in August - Monrovia, IN
  • Average cloud cover in August: 30

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in August
Monrovia, IN

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

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

Monrovia, Indiana, USA

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