July weather forecastHerrick, IL
July
Weather in July
July, like June, in Herrick, Illinois, is another warm summer month, with an average temperature ranging between min 67.1°F (19.5°C) and max 83.7°F (28.7°C).Temperature
In Herrick, Illinois, the month of July is known for its highest average temperatures, reaching a high of 83.7°F (28.7°C) and a low of 67.1°F (19.5°C).Heat index
July's average heat index is calculated to be a tropical 93.2°F (34°C). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Humidity
The months with the highest humidity are July and August, with an average relative humidity of 81%.Rainfall
In Herrick, during July, the rain falls for 16 days and regularly aggregates up to 2.32" (59mm) of precipitation. Throughout the year, there are 139.3 rainfall days, and 23.94" (608mm) of precipitation is accumulated.Snowfall
In Herrick, snow does not fall in May through October.Daylight
In Herrick, Illinois, the average length of the day in July is 14h and 37min.On the first day of the month, sunrise is at 5:33 am and sunset at 8:26 pm. On the last day of July, sunrise is at 5:56 am and sunset at 8:08 pm CDT.
Sunshine
In Herrick, the average sunshine in July is 10.2h.UV index
The months with the highest UV index in Herrick, Illinois, are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum high UV index of 6 in July translates into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. 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. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Herrick, 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
Herrick, 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
Herrick, 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
Herrick, 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
Herrick, 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
Herrick, 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
Herrick, 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
Herrick, 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
Herrick, 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 30min).
- 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 18min).
Average sunshine days in July
Herrick, 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
Herrick, 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
Herrick, 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
Herrick, 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).
