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
Illiopolis witnesses the warmest weather in July, with temperatures averaging a high of 82°F (27.8°C) and a low of 65.7°F (18.7°C).Heat index
The heat index value during July is calculated to be a hot 89.6°F (32°C). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.Consider that heat index readings are for situations in the shade and light wind. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
With an average relative humidity of 84%, July is the most humid month in Illiopolis.Rainfall
In Illiopolis, in July, it is raining for 16.3 days, with typically 2.05" (52mm) of accumulated precipitation. Throughout the year, there are 141.8 rainfall days, and 22.24" (565mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Illiopolis, the average length of the day in July is 14h and 40min.On the first day of July in Illiopolis, sunrise is at 5:32 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 8:11 pm CDT.
Sunshine
In July, the average sunshine in Illiopolis is 9.9h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Illiopolis. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: During July, 6 as the daily maximum UV index converts into the following advice:
Guard oneself from overexposure. Defence against sun injury is vital. 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. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Frequently asked questions
What is the hottest time of year in Illiopolis?
What is the temperature in July in Illiopolis?
What is the most humid month in Illiopolis?
What is the average humidity in July in Illiopolis?
How many days does it rain in July in Illiopolis?
When it does not snow in Illiopolis?
What is the average length of the day in July in Illiopolis?
What time are sunrise and sunset in July in Illiopolis?
How long on average sun shines in July in Illiopolis?
When is the highest UV index in Illiopolis?
What is the UV index intensity in July in Illiopolis?
Average temperature in July
Illiopolis, 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 (32.5°F).
- Average low temperature in July: 65.7°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in July
Illiopolis, 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 (29.92"Hg).
Average wind speed in July
Illiopolis, IL
- Average wind speed in July: 6.3mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in July
Illiopolis, 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 (70%).
Average rainfall in July
Illiopolis, IL
- Average rainfall in July: 2.05"
The wettest month (with the highest rainfall) is May (2.68").
The driest month (with the least rainfall) is December (1.1").
Average rainfall days in July
Illiopolis, IL
- Average rainfall days in July: 16.3 days
The month with the highest number of rainy days is May (17 days).
The months with the least rainy days are January and February (6.3 days).
Average snowfall in July
Illiopolis, IL
- Average snowfall in July: 0"
The month with the highest snowfall is January (2.24").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in July
Illiopolis, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in July /
Average sunshine in July
Illiopolis, IL
- Average daylight in July: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in July: 9h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in July
Illiopolis, IL
- Average sunshine days in July: 10.9 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in July
Illiopolis, IL
- Average UV index in July: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in July
Illiopolis, IL
- Average cloud cover in July: 32
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are June and September (Cloud cover 31).
Average visibility in July
Illiopolis, 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).
Illiopolis, Illinois, USA
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