August weather forecast
Libertyville, IA

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Weather in August

August, the last month of the summer in Libertyville, is also a moderately hot month, with an average temperature varying between 81.5°F (27.5°C) and 63.3°F (17.4°C).

Temperature

With the onset of August, a modest change to a still moderately hot 81.5°F (27.5°C) from July's 82.4°F (28°C) is noted in high-temperature. Throughout August, Libertyville anticipates an average low-temperature of 63.3°F (17.4°C).

Heat index

August's heat index is estimated at a tropical 87.8°F (31°C). If one remains active during constant exposure, it might cause exhaustion and heat cramps.
Always consider that heat index estimations are for light winds and places in the shade. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.

Humidity

In August, the average relative humidity is 79%.

Rainfall

In Libertyville, in August, it is raining for 12.1 days, with typically 2.05" (52mm) of accumulated precipitation. Throughout the year, there are 135.6 rainfall days, and 28.66" (728mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in August is 13h and 46min.
On the first day of the month, sunrise is at 6:05 am and sunset at 8:23 pm. On the last day of August, sunrise is at 6:34 am and sunset at 7:41 pm CDT.

Sunshine

In August, the average sunshine is 9.8h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 6 during August, leads to the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Boost your sun resistance with garments that are densely woven yet spacious.
Updated: Aug 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in August?

In August, in Libertyville, the average high-temperature is 81.5°F (27.5°C), and the average low-temperature is 63.3°F (17.4°C). The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in August is estimated at 87.8°F (31°C).

What is the average humidity in August?

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

How many days does it rain in August?

In Libertyville, in August, during 12.1 rainfall days, 2.05" (52mm) of precipitation is typically accumulated.

When it does not snow?

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

What is the average length of the day in August?

The average day length in August is 13h and 46min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:05 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 7:41 pm CDT.

How many hours of sunshine does Libertyville have in August?

The average sunshine duration in August in Libertyville is 9.8h.

What is the month with the highest UV index?

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

How high is the UV index in August in Libertyville?

In August, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe 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
Libertyville, IA

Average temperature in August - Libertyville, IA
  • Average high temperature in August: 81.5°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (29.1°F).

  • Average low temperature in August: 63.3°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

Average pressure in August
Libertyville, IA

Average pressure in August - Libertyville, IA
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in August
Libertyville, IA

Average wind speed in August - Libertyville, IA
  • Average wind speed in August: 7mph

The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

Average humidity in August
Libertyville, IA

Average humidity in August - Libertyville, IA
  • Average humidity in August: 79%

The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in August
Libertyville, IA

Average rainfall in August - Libertyville, IA
  • Average rainfall in August: 2.05"

The wettest month (with the highest rainfall) is May (4.45").
The driest months (with the least rainfall) are January and December (1.18").

Average rainfall days in August
Libertyville, IA

Average rainfall days in August - Libertyville, IA
  • Average rainfall days in August: 12.1 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is February (4.9 days).

Average snowfall in August
Libertyville, IA

Average snowfall in August - Libertyville, IA
  • Average snowfall in August: 0"

The months with the highest snowfall are January and February (4.33").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Libertyville, IA

Average snowfall days in August - Libertyville, IA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (10.3 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
Libertyville, IA

Average daylight in August / Average sunshine in August - Libertyville, IA
  • 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 5min

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

Average sunshine days in August
Libertyville, IA

Average sunshine days in August - Libertyville, IA
  • Average sunshine days in August: 16.7 days

The months with the most sunshine days are October and November (18.8 days).
The month with the least sunshine days is May (11 days).

Average UV index in August
Libertyville, IA

Average UV index in August - Libertyville, IA
  • Average UV index in August: 6

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in August
Libertyville, IA

Average cloud cover in August - Libertyville, IA
  • Average cloud cover in August: 30

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 30).

Average visibility in August
Libertyville, IA

Average visibility in August - Libertyville, IA
  • Average visibility in August: 6mi

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

Libertyville, Iowa, USA

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