July weather forecastShelbyville, IL

July

Weather in July

July, like June, in Shelbyville, Illinois, is another warm summer month, with an average temperature fluctuating between 82.8°F (28.2°C) and 66.2°F (19°C).

Temperature

July, recognised by an average high temperature of 82.8°F (28.2°C) and a low of 66.2°F (19°C), is Shelbyville's warmest month.

Heat index

Throughout July, the heat index is estimated at a hot 91.4°F (33°C). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
Factoring in the heat index, values are geared towards shaded areas with light breezes. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. 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 is July, with an average relative humidity of 83%.

Rainfall

In July, the rain falls for 13.5 days. Throughout July, 1.22" (31mm) of precipitation is accumulated. In Shelbyville, Illinois, during the entire year, the rain falls for 116.5 days and collects up to 11.54" (293mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in July is 14h and 37min.
On the first day of the month, sunrise is at 5:32 am and sunset at 8:26 pm. On the last day of July, sunrise is at 5:54 am and sunset at 8:08 pm CDT.

Sunshine

In July, the average sunshine is 10h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: A maximum high UV index of 6 in July translates into the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. 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. Enhance your sun protection with tightly woven, yet airy clothing.

Updated: Jul 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Temperature records mark July as the warmest month, with highs averaging 82.8°F (28.2°C) and lows at 66.2°F (19°C).

In Shelbyville, 82.8°F (28.2°C) is the average high-temperature and 66.2°F (19°C) is the average low-temperature during July. In July, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is estimated at 91.4°F (33°C).

July is the most humid month in Shelbyville, with an average relative humidity of 83%.

The average relative humidity in July is 83%.

In Shelbyville, in July, it is raining for 13.5 days, with typically 1.22" (31mm) of accumulated precipitation.

In Shelbyville, snow does not fall in April through October.

In July, the average day length is 14h and 37min.

On the first day of July, sunrise is at 5:32 am and sunset at 8:26 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 8:08 pm CDT.

In July, the average sunshine duration in Shelbyville is 10h.

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

In Shelbyville, Illinois, the average daily maximum UV index in July is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J July A S O N D

Jun

July

Aug

Average high temperature

81.1°F

82.8°F

81.7°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

8mph

6.6mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

12.7

13.5

10.9

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

13.5

13.9

16.8

Average UV index

Average cloud cover

Average visibility

Average temperature in July
Shelbyville, IL

Average high temperature in July: 82.8°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (34.3°F).

Average low temperature in July: 66.2°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).

Average pressure in July
Shelbyville, IL

Average pressure in July: 29.97"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in July
Shelbyville, IL

Average wind speed in July: 6.2mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in July
Shelbyville, IL

Average humidity in July: 83%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).

Average rainfall in July
Shelbyville, IL

Average rainfall in July: 1.22"

The wettest month (with the highest rainfall) is June (1.46").
The driest month (with the least rainfall) is February (0.55").

Average rainfall days in July
Shelbyville, IL

Average rainfall days in July: 13.5 days

The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is February (4.9 days).

Average snowfall in July
Shelbyville, IL

Average snowfall in July: 0"

The month with the highest snowfall is February (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in July
Shelbyville, IL

Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (5.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in July /
Average sunshine in July
Shelbyville, IL

Average daylight in July: 14h and 36min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

Average sunshine in July: 10h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in July
Shelbyville, IL

Average sunshine days in July: 13.9 days

The month with the most sunshine days is December (22.1 days).
The month with the least sunshine days is June (13.5 days).

Average UV index in July
Shelbyville, 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, February, November and December (UV index 2).

Average cloud cover in July
Shelbyville, IL

Average cloud cover in July: 31

The months with the most cloud cover are January and February (Cloud cover 55).
The months with the least cloud cover are June and September (Cloud cover 30).

Average visibility in July
Shelbyville, IL

Average visibility in July: 6mi

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