August weather forecast
Union Hill, IL

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Weather in August

The last month of the summer, August, is also a moderately hot month in Union Hill, Illinois, with temperature in the range of an average high of 79.7°F (26.5°C) and an average low of 62.6°F (17°C).

Temperature

The shift into August records an average high-temperature of a still moderately hot 79.7°F (26.5°C), subtly varied from July's 81.1°F (27.3°C). August brings an average low-temperature of 62.6°F (17°C) to Union Hill.

Humidity

In Union Hill, the average relative humidity in August is 83%.

Rainfall

In Union Hill, in August, it is raining for 15 days, with typically 2.24" (57mm) of accumulated precipitation. In Union Hill, during the entire year, the rain falls for 142.1 days and collects up to 22.56" (573mm) of precipitation.

Snowfall

In Union Hill, snow does not fall in May through September.

Daylight

The average length of the day in August is 13h and 46min.
On the first day of August, sunrise is at 5:49 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:26 pm CDT.

Sunshine

In August, the average sunshine is 9.6h.

UV index

In Union Hill, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 5 in August translates into the following recommendations:
Be vigilant - Preventing sunburn is recommended. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in August?

An average high-temperature, in August, in Union Hill, is 79.7°F (26.5°C) and the average low-temperature is 62.6°F (17°C). In July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 87.8°F (31°C).

What is the average humidity in August?

The average relative humidity in August is 83%.

How much does it rain in August?

In August, the rain falls for 15 days. Throughout August, 2.24" (57mm) of precipitation is accumulated.

When it does not snow?

In Union Hill, snow does not fall in May through September.

How many hours of daylight does Union Hill have in August?

In Union Hill, the average day length in August is 13h and 46min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 5:49 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:26 pm CDT.

How long on average sun shines in August?

In August, the average sunshine duration is 9.6h.

What is the UV index reading in August?

In Union Hill, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium 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
Union Hill, IL

Average temperature in August - Union Hill, IL
  • Average high temperature in August: 79.7°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30°F).

  • Average low temperature in August: 62.6°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

Average pressure in August
Union Hill, IL

Average pressure in August - Union Hill, IL
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in August
Union Hill, IL

Average wind speed in August - Union Hill, IL
  • Average wind speed in August: 6.2mph

The windiest months (with the highest average wind speed) are January and April (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in August
Union Hill, IL

Average humidity in August - Union Hill, IL
  • Average humidity in August: 83%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).

Average rainfall in August
Union Hill, IL

Average rainfall in August - Union Hill, IL
  • Average rainfall in August: 2.24"

The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is February (1.06").

Average rainfall days in August
Union Hill, IL

Average rainfall days in August - Union Hill, IL
  • Average rainfall days in August: 15 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (5 days).

Average snowfall in August
Union Hill, IL

Average snowfall in August - Union Hill, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Union Hill, IL

Average snowfall days in August - Union Hill, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (11.7 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
Union Hill, IL

Average daylight in August / Average sunshine in August - Union Hill, IL
  • 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 4min

The months with the most sunshine are June and July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in August
Union Hill, IL

Average sunshine days in August - Union Hill, IL
  • Average sunshine days in August: 11.8 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (9.3 days).

Average UV index in August
Union Hill, IL

Average UV index in August - Union Hill, IL
  • Average UV index in August: 5

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in August
Union Hill, IL

Average cloud cover in August - Union Hill, IL
  • Average cloud cover in August: 34

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 34).

Average visibility in August
Union Hill, IL

Average visibility in August - Union Hill, 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).

Union Hill, Illinois, USA

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