August weather forecast
Herod, IL

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Weather in August

The last month of the summer, August, is another warm month in Herod, Illinois, with an average temperature varying between 66°F (18.9°C) and 85.6°F (29.8°C).

Temperature

August welcomes an average high-temperature of a warm 85.6°F (29.8°C), not much different from the preceding month. Nighttime temperature experiences an average drop to a comfortable 66°F (18.9°C) in August.

Heat index

August's mean heat index is computed to be a fiery hot 96.8°F (36°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Thinking about the heat index, one should account for its values in shaded areas with gentle 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 'feels like' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are particularly meaningful for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

In August, the average relative humidity in Herod is 76%.

Rainfall

In Herod, during August, the rain falls for 13.8 days and regularly aggregates up to 2.52" (64mm) of precipitation. In Herod, during the entire year, the rain falls for 158.6 days and collects up to 36.02" (915mm) of precipitation.

Snowfall

May through September are months without snowfall in Herod, Illinois.

Daylight

In Herod, Illinois, the average length of the day in August is 13h and 34min.
On the first day of the month, sunrise is at 5:58 am and sunset at 8:01 pm. On the last day of August, in Herod, sunrise is at 6:23 am and sunset at 7:23 pm CDT.

Sunshine

The average sunshine in August is 10.3h.

UV index

The months with the highest UV index in Herod are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 6 in August interprets into the following advice:
Shun overexposure. Protection from sun ravages is indispensable. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Frequently asked questions

How hot is it in Herod in August?

The average high-temperature and low-temperature during August are 85.6°F (29.8°C) and 66°F (18.9°C) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 96.8°F (36°C).

What is the average humidity in August in Herod?

The average relative humidity in August in Herod is 76%.

How much does it rain in Herod in August?

In Herod, during August, the rain falls for 13.8 days and regularly aggregates up to 2.52" (64mm) of precipitation.

When it does not snow in Herod?

In Herod, Illinois, snow does not fall in May through September.

What is the average length of the day in August in Herod?

In August, the average day length is 13h and 34min.

When are sunrise and sunset in August in Herod?

On the first day of August in Herod, sunrise is at 5:58 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:23 pm CDT.

How many hours of sunshine does Herod have in August?

In Herod, the average sunshine duration in August is 10.3h.

When is the highest UV index in Herod?

May through August, with an average maximum UV index of 6, are months with the highest UV index in Herod, Illinois.

What is the UV index reading in August in Herod?

In August, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health 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
Herod, IL

Average temperature in August - Herod, IL
  • Average high temperature in August: 85.6°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in August: 66°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

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Average pressure in August
Herod, IL

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in August
Herod, IL

Average wind speed in August - Herod, IL
  • Average wind speed in August: 5.8mph

The windiest months (with the highest average wind speed) are January and February (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

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Average humidity in August
Herod, IL

Average humidity in August - Herod, IL
  • Average humidity in August: 76%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in August
Herod, IL

Average rainfall in August - Herod, IL
  • Average rainfall in August: 2.52"

The wettest month (with the highest rainfall) is April (4.8").
The driest month (with the least rainfall) is September (1.57").

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Average rainfall days in August
Herod, IL

Average rainfall days in August - Herod, IL
  • Average rainfall days in August: 13.8 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is November (9.7 days).

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Average snowfall in August
Herod, IL

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

The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Herod, IL

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

The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Herod, IL
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days in August
Herod, IL

Average sunshine days in August - Herod, IL
  • Average sunshine days in August: 15 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (9.9 days).

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Average UV index in August
Herod, IL

Average UV index in August - Herod, IL
  • Average UV index in August: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in August
Herod, IL

Average cloud cover in August - Herod, IL
  • Average cloud cover in August: 29

The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 28).

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Average visibility in August
Herod, IL

Average visibility in August - Herod, IL
  • Average visibility in August: 6mi

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

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Herod, Illinois, USA

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