July weather forecast
Herod, IL

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Weather in July

July is a tropical summer month in Herod, Illinois, with temperature in the range of an average low of 68.5°F (20.3°C) and an average high of 87.3°F (30.7°C).

Temperature

July is the warmest month of the year, registering average temperatures as high as 87.3°F (30.7°C) and as low as 68.5°F (20.3°C).

Heat index

July's average heat index is computed to be a sweltering 102.2°F (39°C). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. 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. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In July, the average relative humidity is 77%.

Rainfall

In Herod, during July, the rain falls for 17.1 days and regularly aggregates up to 2.87" (73mm) of precipitation. Throughout the year, in Herod, Illinois, there are 158.6 rainfall days, and 36.02" (915mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Herod, the average length of the day in July is 14h and 28min.
On the first day of the month, sunrise is at 5:36 am and sunset at 8:19 pm. On the last day of July, in Herod, sunrise is at 5:57 am and sunset at 8:02 pm CDT.

Sunshine

In July, the average sunshine in Herod, Illinois, is 10.5h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily high UV index of 6 during July translates into the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
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Frequently asked questions

What is the warmest month in Herod?

In Herod, July is identified by the average highest temperatures, reaching a peak of 87.3°F (30.7°C) and a low of 68.5°F (20.3°C).

How hot is it in Herod in July?

July temperatures in Herod vary between a high-temperature of 87.3°F (30.7°C) and a low-temperature of 68.5°F (20.3°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in July is computed to be 102.2°F (39°C).

What is the average humidity in July in Herod?

In July, the average relative humidity is 77%.

How many days does it rain in July in Herod?

In Herod, Illinois, in July, it is raining for 17.1 days, with typically 2.87" (73mm) of accumulated precipitation.

When it does not snow in Herod?

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

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

In Herod, Illinois, the average day length in July is 14h and 28min.

When are sunrise and sunset in July in Herod?

On the first day of July in Herod, sunrise is at 5:36 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 8:02 pm CDT.

How long on average sun shines in July in Herod?

The average sunshine duration in July is 10.5h.

When is the highest UV index in Herod?

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

What is the UV index reading in July in Herod?

In Herod, the average daily maximum UV index in July is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation.
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 July
Herod, IL

Average temperature in July - Herod, IL
  • Average high temperature in July: 87.3°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 July: 68.5°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 July
Herod, IL

Average pressure in July - Herod, IL
  • Average pressure in July: 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 July
Herod, IL

Average wind speed in July - Herod, IL
  • Average wind speed in July: 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 July
Herod, IL

Average humidity in July - Herod, IL
  • Average humidity in July: 77%

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 July
Herod, IL

Average rainfall in July - Herod, IL
  • Average rainfall in July: 2.87"

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 July
Herod, IL

Average rainfall days in July - Herod, IL
  • Average rainfall days in July: 17.1 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 July
Herod, IL

Average snowfall in July - Herod, IL
  • Average snowfall in July: 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 July
Herod, IL

Average snowfall days in July - Herod, IL
  • Average snowfall days in July: 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 July /
Average sunshine in July
Herod, IL

Average daylight in July / Average sunshine in July - Herod, IL
  • Average daylight in July: 14h and 3min

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 July: 10h and 3min

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 July
Herod, IL

Average sunshine days in July - Herod, IL
  • Average sunshine days in July: 12.2 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 July
Herod, IL

Average UV index in July - Herod, IL
  • Average UV index in July: 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 July
Herod, IL

Average cloud cover in July - Herod, IL
  • Average cloud cover in July: 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 July
Herod, IL

Average visibility in July - Herod, IL
  • Average visibility in July: 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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