July weather forecast
Saint Elmo, IL

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Weather in July

July, the same as June, is another warm summer month in Saint Elmo, Illinois, with an average temperature ranging between min 67.1°F (19.5°C) and max 83.7°F (28.7°C).

Temperature

July is Saint Elmo's warmest month, registering average high temperatures of 83.7°F (28.7°C) and lows of 67.1°F (19.5°C).

Heat index

The heat index value during July is appraised at a tropical 93.2°F (34°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. 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 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. 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 hold great significance to children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.

Humidity

The months with the highest humidity in Saint Elmo are July and August, with an average relative humidity of 81%.

Rainfall

In July, in Saint Elmo, the rain falls for 16 days. Throughout July, 2.32" (59mm) of precipitation is accumulated. Throughout the year, in Saint Elmo, there are 139.3 rainfall days, and 23.94" (608mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In Saint Elmo, the average length of the day in July is 14h and 35min.
On the first day of July in Saint Elmo, sunrise is at 5:33 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 8:07 pm CDT.

Sunshine

The average sunshine in July in Saint Elmo is 10.2h.

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 exposure to the Sun's UV radiation for ordinary individuals.
Note: A daily maximum UV index of 6 in July translates into the following instructions:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month in Saint Elmo?

With an average high-temperature of 83.7°F (28.7°C) and an average low-temperature of 67.1°F (19.5°C), July is the warmest month in Saint Elmo, Illinois.

How hot does it get in Saint Elmo in July?

July temperatures vary between a high-temperature of 83.7°F (28.7°C) and a low-temperature of 67.1°F (19.5°C). In July, the average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, is appraised at 93.2°F (34°C).

What are the most humid months in Saint Elmo?

The months with the highest humidity in Saint Elmo, Illinois, are July and August, with an average relative humidity of 81%.

What is the average humidity in July in Saint Elmo?

The average relative humidity in July is 81%.

How many days does it rain in July in Saint Elmo?

In July, the rain falls for 16 days. Throughout July, 2.32" (59mm) of precipitation is accumulated.

When it does not snow in Saint Elmo?

May through October are months without snowfall in Saint Elmo.

What is the average length of the day in July in Saint Elmo?

In Saint Elmo, Illinois, the average day length in July is 14h and 35min.

What time are sunrise and sunset in July in Saint Elmo?

In July, on the first day of the month, sunrise is at 5:33 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 8:07 pm CDT.

How many hours of sunshine does Saint Elmo have in July?

In Saint Elmo, the average sunshine duration in July is 10.2h.

When is the highest UV index in Saint Elmo?

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

How high is the UV index in July in Saint Elmo?

The average daily maximum UV index in July in Saint Elmo, Illinois, is 6. A UV Index reading of 6 to 7 represents a high hazard to health 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 July
Saint Elmo, IL

Average temperature in July - Saint Elmo, IL
  • Average high temperature in July: 83.7°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in July: 67.1°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

Average pressure in July
Saint Elmo, IL

Average pressure in July - Saint Elmo, 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).

Average wind speed in July
Saint Elmo, IL

Average wind speed in July - Saint Elmo, IL
  • Average wind speed in July: 6mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

Average humidity in July
Saint Elmo, IL

Average humidity in July - Saint Elmo, IL
  • Average humidity in July: 81%

The months with the highest relative humidity are July and August (81%).
The month with the lowest relative humidity is October (71%).

Average rainfall in July
Saint Elmo, IL

Average rainfall in July - Saint Elmo, IL
  • Average rainfall in July: 2.32"

The wettest months (with the highest rainfall) are April and June (2.95").
The driest month (with the least rainfall) is February (1.18").

Average rainfall days in July
Saint Elmo, IL

Average rainfall days in July - Saint Elmo, IL
  • Average rainfall days in July: 16 days

The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in July
Saint Elmo, IL

Average snowfall in July - Saint Elmo, IL
  • Average snowfall in July: 0"

The month with the highest snowfall is December (1.65").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in July
Saint Elmo, IL

Average snowfall days in July - Saint Elmo, IL
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (5.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Saint Elmo, IL

Average daylight in July / Average sunshine in July - Saint Elmo, IL
  • Average daylight in July: 14h and 4min

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 30min).

  • Average sunshine in July: 10h and 1min

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 18min).

Average sunshine days in July
Saint Elmo, IL

Average sunshine days in July - Saint Elmo, IL
  • Average sunshine days in July: 12.3 days

The months with the most sunshine days are January and November (19.5 days).
The months with the least sunshine days are May and July (12.3 days).

Average UV index in July
Saint Elmo, IL

Average UV index in July - Saint Elmo, 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
Saint Elmo, IL

Average cloud cover in July - Saint Elmo, IL
  • Average cloud cover in July: 29

The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June and July (Cloud cover 29).

Average visibility in July
Saint Elmo, IL

Average visibility in July - Saint Elmo, 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).

Saint Elmo, Illinois, USA

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