Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
July is the warmest month of the year, registering average temperatures as high as 82°F (27.8°C) and as low as 64.9°F (18.3°C).Heat index
For July, the heat index is computed to be a tropical 89.6°F (32°C). With extended exposure and activity, one might feel exhausted and experience heat cramps.Be aware that heat index ratings are designed for shaded locations and minor breezes. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a numerical representation of warmth when taking temperature and moisture levels into account. The individual's temperature perception can be influenced by numerous factors 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 essentially critical for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humidity
July is the most humid month in Gerlaw, Illinois, with an average relative humidity of 84%.Rainfall
In July, the rain falls for 17 days. Throughout July, 3.03" (77mm) of precipitation is accumulated. Throughout the year, there are 149.4 rainfall days, and 30.16" (766mm) of precipitation is accumulated.Snowfall
In Gerlaw, snow does not fall in May through September.Daylight
In Gerlaw, Illinois, the average length of the day in July is 14h and 47min.On the first day of the month, sunrise is at 5:34 am and sunset at 8:38 pm. On the last day of July, in Gerlaw, sunrise is at 5:58 am and sunset at 8:19 pm CDT.
Sunshine
The average sunshine in July in Gerlaw is 10h.UV index
June and July, with an average maximum UV index of 6, are months with the highest UV index in Gerlaw. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index, 6 in July, converts into the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the hottest in Gerlaw?
What are the temperatures in Gerlaw in July?
What is the most humid month in Gerlaw?
What is the average humidity in July in Gerlaw?
How much does it rain in Gerlaw in July?
When it does not snow in Gerlaw?
What is the average length of the day in July in Gerlaw?
When is the sunrise / sunset in July in Gerlaw?
How many hours of sunshine does Gerlaw have in July?
What is the month with the highest UV index in Gerlaw?
How high is the UV index in July in Gerlaw?
Average temperature in July
Gerlaw, IL
- Average high temperature in July: 82°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in July: 64.9°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).
Average pressure in July
Gerlaw, IL
- Average pressure in July: 29.96"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in July
Gerlaw, IL
- Average wind speed in July: 6.8mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in July
Gerlaw, IL
- Average humidity in July: 84%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (71%).
Average rainfall in July
Gerlaw, IL
- Average rainfall in July: 3.03"
The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is January (1.46").
Average rainfall days in July
Gerlaw, IL
- Average rainfall days in July: 17 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in July
Gerlaw, IL
- Average snowfall in July: 0"
The month with the highest snowfall is January (4.61").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
Gerlaw, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (10.9 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
Gerlaw, 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: 10h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in July
Gerlaw, IL
- Average sunshine days in July: 9.9 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (9.2 days).
Average UV index in July
Gerlaw, IL
- Average UV index in July: 6
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in July
Gerlaw, IL
- Average cloud cover in July: 31
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in July
Gerlaw, IL
- Average visibility in July: 5mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Gerlaw, Illinois, USA
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