August weather forecast
Hanna City, IL

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Weather in August

The last month of the summer, August, is also a moderately hot month in Hanna City, Illinois, with an average temperature ranging between min 63.3°F (17.4°C) and max 81.1°F (27.3°C).

Temperature

Hanna City experiences an average high-temperature of a still warm 81.1°F (27.3°C) in August, marking an insignificant shift from 82°F (27.8°C) in July. In the month of August, the average temperature dips to a refreshing 63.3°F (17.4°C) during the night.

Heat index

The average heat index in August is calculated to be a tropical 87.8°F (31°C). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a single figure representing how weather conditions feel when combining temperature and humidity. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in August is 81%.

Rainfall

In Hanna City, during August, the rain falls for 12.3 days and regularly aggregates up to 1.3" (33mm) of precipitation. In Hanna City, Illinois, during the entire year, the rain falls for 129.2 days and collects up to 17.24" (438mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In August, the average length of the day is 13h and 44min.
On the first day of August, sunrise is at 5:56 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:32 pm CDT.

Sunshine

In Hanna City, the average sunshine in August is 10h.

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: The maximum UV index of 6 during August leads to these instructions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Updated: Jul 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures?

In Hanna City, in August, the average high-temperature is 81.1°F (27.3°C), and the average low-temperature is 63.3°F (17.4°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 87.8°F (31°C).

What is the average humidity in August?

In August, the average relative humidity is 81%.

How much does it rain in August?

In August, the rain falls for 12.3 days. Throughout August, 1.3" (33mm) of precipitation is accumulated.

When it does not snow?

May through September are months without snowfall.

What is the average length of the day in August?

In Hanna City, the average day length in August is 13h and 44min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:56 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:32 pm CDT.

How many hours of sunshine does Hanna City have in August?

The average sunshine duration in August is 10h.

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.

What is the UV index reading in August?

In Hanna City, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from 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
Hanna City, IL

Average temperature in August - Hanna City, IL
  • Average high temperature in August: 81.1°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (30.7°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 (18.9°F).

Average pressure in August
Hanna City, IL

Average pressure in August - Hanna City, IL
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in August
Hanna City, IL

Average wind speed in August - Hanna City, IL
  • Average wind speed in August: 6.5mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in August
Hanna City, IL

Average humidity in August - Hanna City, IL
  • Average humidity in August: 81%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (71%).

Average rainfall in August
Hanna City, IL

Average rainfall in August - Hanna City, IL
  • Average rainfall in August: 1.3"

The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is January (0.75").

Average rainfall days in August
Hanna City, IL

Average rainfall days in August - Hanna City, IL
  • Average rainfall days in August: 12.3 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (4.6 days).

Average snowfall in August
Hanna City, IL

Average snowfall in August - Hanna City, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (2.36").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Hanna City, IL

Average snowfall days in August - Hanna City, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (9 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
Hanna City, IL

Average daylight in August / Average sunshine in August - Hanna City, IL
  • 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 18min).

  • Average sunshine in August: 10h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in August
Hanna City, IL

Average sunshine days in August - Hanna City, IL
  • Average sunshine days in August: 16.4 days

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in August
Hanna City, IL

Average UV index in August - Hanna City, IL
  • 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
Hanna City, IL

Average cloud cover in August - Hanna City, IL
  • Average cloud cover in August: 30

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 29).

Average visibility in August
Hanna City, IL

Average visibility in August - Hanna City, IL
  • 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).

Hanna City, Illinois, USA

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