August weather forecast
Heyworth, IL

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Weather in August

The last month of the summer, August, is another warm month in Heyworth, Illinois, with temperature in the range of an average high of 80.2°F (26.8°C) and an average low of 63.3°F (17.4°C).

Temperature

Heyworth notes an average high-temperature of a still moderately hot 80.2°F (26.8°C) in August, displaying minor variation from July. Throughout the month of August, Heyworth sees a steady low-temperature average of 63.3°F (17.4°C).

Humidity

The average relative humidity in August is 83%.

Rainfall

In August, in Heyworth, the rain falls for 11.8 days. Throughout August, 1.26" (32mm) of precipitation is accumulated. Throughout the year, there are 124.4 rainfall days, and 13.23" (336mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In August, the average length of the day is 13h and 43min.
On the first day of the month, sunrise is at 5:54 am and sunset at 8:10 pm. On the last day of August, sunrise is at 6:23 am and sunset at 7:28 pm CDT.

Sunshine

The average sunshine in August is 9.8h.

UV index

In Heyworth, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: A maximum high UV index of 5 in August translates into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Updated: Jul 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures?

The average high-temperature, in August, in Heyworth, is 80.2°F (26.8°C), while the average low-temperature is 63.3°F (17.4°C). In July, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is estimated at 87.8°F (31°C).

What is the average humidity in August?

In August, the average relative humidity is 83%.

How much does it rain in August?

In Heyworth, in August, it is raining for 11.8 days, with typically 1.26" (32mm) of accumulated precipitation.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Heyworth have in August?

In Heyworth, the average day length in August is 13h and 43min.

When are sunrise and sunset in August in Heyworth?

On the first day of August, sunrise is at 5:54 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:28 pm CDT.

How long on average sun shines in August?

The average sunshine duration in August is 9.8h.

What is the UV index reading in August?

In Heyworth, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Heyworth, IL

Average temperature in August - Heyworth, IL
  • Average high temperature in August: 80.2°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 (31.3°F).

  • Average low temperature in August: 63.3°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in August
Heyworth, IL

Average pressure in August - Heyworth, IL
  • 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 (29.92"Hg).

Average wind speed in August
Heyworth, IL

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

The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in August
Heyworth, IL

Average humidity in August - Heyworth, 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 (71%).

Average rainfall in August
Heyworth, IL

Average rainfall in August - Heyworth, IL
  • Average rainfall in August: 1.26"

The wettest month (with the highest rainfall) is May (1.69").
The driest month (with the least rainfall) is December (0.67").

Average rainfall days in August
Heyworth, IL

Average rainfall days in August - Heyworth, IL
  • Average rainfall days in August: 11.8 days

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (5.3 days).

Average snowfall in August
Heyworth, IL

Average snowfall in August - Heyworth, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Heyworth, IL

Average snowfall days in August - Heyworth, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Heyworth, IL

Average daylight in August / Average sunshine in August - Heyworth, 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 24min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in August
Heyworth, IL

Average sunshine days in August - Heyworth, IL
  • Average sunshine days in August: 15.5 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is May (11.7 days).

Average UV index in August
Heyworth, IL

Average UV index in August - Heyworth, 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, February, November and December (UV index 2).

Average cloud cover in August
Heyworth, IL

Average cloud cover in August - Heyworth, IL
  • Average cloud cover in August: 31

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 31).

Average visibility in August
Heyworth, IL

Average visibility in August - Heyworth, 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).

Heyworth, Illinois, USA

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