July weather forecast
Spring Valley, IL

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Weather in July

July, the same as June, is another warm summer month in Spring Valley, Illinois, with temperature in the range of an average low of 64.2°F (17.9°C) and an average high of 80.8°F (27.1°C).

Temperature

In Spring Valley, July is the month with the highest recorded average temperatures, measuring a high of 80.8°F (27.1°C) and a low of 64.2°F (17.9°C).

Heat index

In July, the heat index is estimated at a tropical 86°F (30°C). Exhaustion might be the outcome of enduring exposure and continuous activity, with a risk of heat cramps.
When referencing the heat index, its values are suitable for shady environments and light breezes. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The most humid month in Spring Valley is July, with an average relative humidity of 85%.

Rainfall

In July, the rain falls for 17.5 days. Throughout July, 2.76" (70mm) of precipitation is accumulated. Throughout the year, in Spring Valley, there are 152.7 rainfall days, and 30.79" (782mm) of precipitation is accumulated.

Snowfall

In Spring Valley, snow does not fall in May through September.

Daylight

The average length of the day in July is 14h and 49min.
On the first day of the month, sunrise is at 5:27 am and sunset at 8:33 pm. On the last day of July, sunrise is at 5:51 am and sunset at 8:14 pm CDT.

Sunshine

The months with the most sunshine are June through August, with an average of 9.8h of sunshine.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index, 6 during July, leads to the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest?

Spring Valley's warmest month, July, generally records average temperatures ranging from a high of 80.8°F (27.1°C) to a low of 64.2°F (17.9°C).

What are the temperatures in July?

In July, the average high-temperature and low-temperature are 80.8°F (27.1°C) and 64.2°F (17.9°C) respectively. In July, the average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 86°F (30°C).

What is the most humid month?

July is the most humid month, with an average relative humidity of 85%.

What is the average humidity in July?

The average relative humidity in July is 85%.

How many days does it rain in July?

In Spring Valley, in July, it is raining for 17.5 days, with typically 2.76" (70mm) of accumulated precipitation.

When it does not snow?

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

What is the average length of the day in July?

In July, the average day length is 14h and 49min.

When is the sunrise / sunset in July in Spring Valley?

In July, on the first day of the month, sunrise is at 5:27 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:14 pm CDT.

What are the months with the most sunshine in Spring Valley?

June through August, with an average of 9.8h of sunshine, are months with the most sunshine.

How many hours of sunshine does Spring Valley have in July?

The average sunshine duration in July is 9.8h.

When is the highest UV index?

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

What is the UV index reading in July?

The average daily maximum UV index in July is 6. A UV Index estimate of 6 to 7 represents a high health risk 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
Spring Valley, IL

Average temperature in July - Spring Valley, IL
  • Average high temperature in July: 80.8°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (28.9°F).

  • Average low temperature in July: 64.2°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 (16.9°F).

Average pressure in July
Spring Valley, IL

Average pressure in July - Spring Valley, IL
  • Average pressure in July: 29.97"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in July
Spring Valley, IL

Average wind speed in July - Spring Valley, IL
  • Average wind speed in July: 6.5mph

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in July
Spring Valley, IL

Average humidity in July - Spring Valley, IL
  • Average humidity in July: 85%

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

Average rainfall in July
Spring Valley, IL

Average rainfall in July - Spring Valley, IL
  • Average rainfall in July: 2.76"

The wettest month (with the highest rainfall) is May (4.69").
The driest months (with the least rainfall) are January and December (1.61").

Average rainfall days in July
Spring Valley, IL

Average rainfall days in July - Spring Valley, IL
  • Average rainfall days in July: 17.5 days

The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is January (5.9 days).

Average snowfall in July
Spring Valley, IL

Average snowfall in July - Spring Valley, IL
  • Average snowfall in July: 0"

The month with the highest snowfall is January (4.09").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Spring Valley, IL

Average snowfall days in July - Spring Valley, IL
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are May, June, July and August (0 days).

Average daylight in July /
Average sunshine in July
Spring Valley, IL

Average daylight in July / Average sunshine in July - Spring Valley, IL
  • Average daylight in July: 14h 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 July: 9h and 5min

The months with the most sunshine are June, July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in July
Spring Valley, IL

Average sunshine days in July - Spring Valley, IL
  • Average sunshine days in July: 10.9 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is April (10.2 days).

Average UV index in July
Spring Valley, IL

Average UV index in July - Spring Valley, IL
  • Average UV index in July: 6

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

Average cloud cover in July
Spring Valley, IL

Average cloud cover in July - Spring Valley, IL
  • Average cloud cover in July: 33

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 32).

Average visibility in July
Spring Valley, IL

Average visibility in July - Spring Valley, IL
  • Average visibility in July: 5mi

The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).

Spring Valley, Illinois, USA

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