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, with average temperatures reaching a high of 81.3°F (27.4°C) and a low of 64.9°F (18.3°C), is the warmest month.Heat index
The heat index value for July is evaluated at a tropical 87.8°F (31°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.Research indicates the heat index considers values in shaded locales and with light winds. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', offers an insight into how hot it feels when we factor in moisture content. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Humidity
In July, the average relative humidity is 79%.Rainfall
In Bartlett, in July, it is raining for 17.4 days, with typically 2.48" (63mm) of accumulated precipitation. Throughout the year, in Bartlett, there are 141.5 rainfall days, and 22.76" (578mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Bartlett, Illinois.Daylight
In Bartlett, the average length of the day in July is 14h and 53min.On the first day of the month, sunrise is at 5:21 am and sunset at 8:32 pm. On the last day of July, in Bartlett, sunrise is at 5:46 am and sunset at 8:12 pm CDT.
Sunshine
July and August, with an average of 9.8h of sunshine, are months with the most sunshine in Bartlett.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Bartlett, Illinois. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 6 in July translates into this advice:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
What part of the year is the hottest in Bartlett?
What is the average July temperature in Bartlett?
What is the average humidity in July in Bartlett?
How much does it rain in Bartlett in July?
When it does not snow in Bartlett?
What is the average length of the day in July in Bartlett?
What time are sunrise and sunset in July in Bartlett?
What is the month with the most sunshine in Bartlett?
How long on average sun shines in July in Bartlett?
What is the month with the highest UV index in Bartlett?
What is the UV index reading in July in Bartlett?
Average temperature in July
Bartlett, IL
- Average high temperature in July: 81.3°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (27.7°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 (16.3°F).
Average pressure in July
Bartlett, IL
- Average pressure in July: 29.97"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in July
Bartlett, IL
- Average wind speed in July: 6.5mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in July
Bartlett, IL
- Average humidity in July: 79%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in July
Bartlett, IL
- Average rainfall in July: 2.48"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is December (1.02").
Average rainfall days in July
Bartlett, IL
- Average rainfall days in July: 17.4 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in July
Bartlett, IL
- Average snowfall in July: 0"
The month with the highest snowfall is January (3.39").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Bartlett, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Bartlett, IL
- Average daylight in July: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in July: 9h and 5min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in July
Bartlett, IL
- Average sunshine days in July: 10.9 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is July (10.9 days).
Average UV index in July
Bartlett, 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 and December (UV index 1).
Average cloud cover in July
Bartlett, IL
- Average cloud cover in July: 33
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July, August and September (Cloud cover 33).
Average visibility in July
Bartlett, IL
- Average visibility in July: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Bartlett, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location
