July weather forecast
Walnut Hill, IL

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Weather in July

July, like June, in Walnut Hill, Illinois, is another warm summer month, with an average temperature fluctuating between 67.6°F (19.8°C) and 84.9°F (29.4°C).

Temperature

The temperatures reach their highest averages in July, with highs of 84.9°F (29.4°C) and lows of 67.6°F (19.8°C).

Heat index

In July, the average heat index is appraised at a very hot 96.8°F (36°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. 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. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

The months with the highest humidity in Walnut Hill, Illinois, are May and July, with an average relative humidity of 80%.

Rainfall

The months with the most rainfall in Walnut Hill are April and July, with an average 0.75" (19mm) of precipitation.

Snowfall

April through October are months without snowfall in Walnut Hill.

Daylight

In Walnut Hill, the average length of the day in July is 14h and 32min.
On the first day of July, sunrise is at 5:36 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 8:07 pm CDT.

Sunshine

June and July, with an average of 10.3h of sunshine, are months with the most sunshine.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: In July, the maximum UV index of 6 suggests these recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
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Frequently asked questions

What are the warmest months in Walnut Hill?

Walnut Hill records the warmest temperatures in July, averaging a high of 84.9°F (29.4°C) and a low of 67.6°F (19.8°C).

Is it hot in Walnut Hill during July?

In Walnut Hill, in July, the average high-temperature is 84.9°F (29.4°C), and the average low-temperature is 67.6°F (19.8°C). The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in July is appraised at 96.8°F (36°C).

What are the most humid months in Walnut Hill?

May and July, with an average relative humidity of 80%, are most humid months in Walnut Hill, Illinois.

What is the average humidity in July in Walnut Hill?

In Walnut Hill, Illinois, the average relative humidity in July is 80%.

What is the wettest month in Walnut Hill?

The wettest months in Walnut Hill are April and July, with an average 0.75" (19mm) of rainfall.

How much does it rain in Walnut Hill in July?

In Walnut Hill, Illinois, in July, during 9.6 rainfall days, 0.75" (19mm) of precipitation is typically accumulated.

When it does not snow in Walnut Hill?

April through October are months without snowfall in Walnut Hill, Illinois.

How many hours of daylight does Walnut Hill have in July?

In July, the average day length is 14h and 32min.

What time are sunrise and sunset in July in Walnut Hill?

On the first day of July in Walnut Hill, sunrise is at 5:36 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 8:07 pm CDT.

What are the months with the most sunshine in Walnut Hill?

The months with the most sunshine in Walnut Hill, Illinois, are June and July, with an average of 10.3h of sunshine.

How long on average sun shines in July in Walnut Hill?

The average sunshine duration in July in Walnut Hill, Illinois, is 10.3h.

What are the months with the highest UV index in Walnut Hill?

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

What is the UV index intensity in July in Walnut Hill?

In July, the average daily maximum UV index in Walnut Hill, Illinois, is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to 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
Walnut Hill, IL

Average temperature in July - Walnut Hill, IL
  • Average high temperature in July: 84.9°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37.2°F).

  • Average low temperature in July: 67.6°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in July
Walnut Hill, IL

Average pressure in July - Walnut Hill, IL
  • Average pressure in July: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in July
Walnut Hill, IL

Average wind speed in July - Walnut Hill, IL
  • Average wind speed in July: 5.8mph

The windiest month (with the highest average wind speed) is February (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).

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Average humidity in July
Walnut Hill, IL

Average humidity in July - Walnut Hill, IL
  • Average humidity in July: 80%

The months with the highest relative humidity are May and July (80%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in July
Walnut Hill, IL

Average rainfall in July - Walnut Hill, IL
  • Average rainfall in July: 0.75"

The wettest months (with the highest rainfall) are April and July (0.75").
The driest month (with the least rainfall) is September (0.24").

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Average rainfall days in July
Walnut Hill, IL

Average rainfall days in July - Walnut Hill, IL
  • Average rainfall days in July: 9.6 days

The month with the highest number of rainy days is May (10.1 days).
The month with the least rainy days is January (3.7 days).

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Average snowfall in July
Walnut Hill, IL

Average snowfall in July - Walnut Hill, IL
  • Average snowfall in July: 0"

The month with the highest snowfall is January (0.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in July
Walnut Hill, IL

Average snowfall days in July - Walnut Hill, IL
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in July /
Average sunshine in July
Walnut Hill, IL

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in July: 10h and 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

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Average sunshine days in July
Walnut Hill, IL

Average sunshine days in July - Walnut Hill, IL
  • Average sunshine days in July: 17.1 days

The months with the most sunshine days are January and December (24.5 days).
The month with the least sunshine days is May (16.8 days).

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Average UV index in July
Walnut Hill, IL

Average UV index in July - Walnut Hill, 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, November and December (UV index 2).

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Average cloud cover in July
Walnut Hill, IL

Average cloud cover in July - Walnut Hill, IL
  • Average cloud cover in July: 29

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

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Average visibility in July
Walnut Hill, IL

Average visibility in July - Walnut Hill, 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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Walnut Hill, Illinois, USA

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