July weather forecastGlenarm, IL
July
Weather in July
July, like June, in Glenarm, Illinois, is another warm summer month, with an average temperature fluctuating between 66.6°F (19.2°C) and 82.8°F (28.2°C).Temperature
July, characterized by an average high temperature of 82.8°F (28.2°C) and a low temperature of 66.6°F (19.2°C), is generally the warmest month.Heat index
The heat index value during July is evaluated at a tropical 91.4°F (33°C). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.Heat index details are generally centered around shaded locations and a mild breeze. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly important for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Humidity
With an average relative humidity of 83%, July is the most humid month.Rainfall
In Glenarm, in July, it is raining for 10.8 days, with typically 0.91" (23mm) of accumulated precipitation. Throughout the year, in Glenarm, there are 104.2 rainfall days, and 9.29" (236mm) of precipitation is accumulated.Snowfall
In Glenarm, Illinois, snow does not fall in May through October.Daylight
In Glenarm, the average length of the day in July is 14h and 38min.On the first day of the month, sunrise is at 5:35 am and sunset at 8:30 pm. On the last day of July, sunrise is at 5:57 am and sunset at 8:12 pm CDT.
Sunshine
The average sunshine in July is 10.2h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Glenarm. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The daily high UV index of 6 in July translates into this advice:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Glenarm, 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 (33.6°F).
- Average low temperature in July: 66.6°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).
Average pressure in July
Glenarm, 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 (29.91"Hg).
Average wind speed in July
Glenarm, IL
- Average wind speed in July: 6.1mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in July
Glenarm, 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
Glenarm, IL
- Average rainfall in July: 0.91"
The wettest month (with the highest rainfall) is June (1.22").
The driest month (with the least rainfall) is December (0.43").
Average rainfall days in July
Glenarm, IL
- Average rainfall days in July: 10.8 days
The month with the highest number of rainy days is May (12.5 days).
The month with the least rainy days is January (4.4 days).
Average snowfall in July
Glenarm, IL
- Average snowfall in July: 0"
The month with the highest snowfall is February (0.91").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in July
Glenarm, 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
Glenarm, 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 12min
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 12min).
Average sunshine days in July
Glenarm, IL
- Average sunshine days in July: 16 days
The month with the most sunshine days is December (22.6 days).
The month with the least sunshine days is June (14 days).
Average UV index in July
Glenarm, 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
Glenarm, IL
- Average cloud cover in July: 30
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are June and September (Cloud cover 29).
Average visibility in July
Glenarm, IL
- Average visibility in July: 5mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
