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
The warmest period tends to be July, when average temperatures fluctuate between a high of 87.3°F (30.7°C) and a low of 68.5°F (20.3°C).Heat index
July's average heat index is computed to be a fiery hot 102.2°F (39°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.When referencing the heat index, its values are suitable for shady environments and light breezes. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
In July, the average relative humidity is 78%.Rainfall
In Coulterville, in July, during 15 rainfall days, 2.05" (52mm) of precipitation is typically accumulated. In Coulterville, during the entire year, the rain falls for 125.7 days and collects up to 18.31" (465mm) of precipitation.Snowfall
April through September are months without snowfall in Coulterville.Daylight
In July, the average length of the day in Coulterville, Illinois, is 14h and 31min.On the first day of the month, sunrise is at 5:39 am and sunset at 8:25 pm. On the last day of July, in Coulterville, Illinois, sunrise is at 6:00 am and sunset at 8:08 pm CDT.
Sunshine
In Coulterville, the average sunshine in July is 10.5h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: An average UV index of 6 in July transforms into this advice:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Frequently asked questions
What part of the year is the hottest in Coulterville?
Is it hot in Coulterville during July?
What is the average humidity in July in Coulterville?
How much does it rain in Coulterville in July?
When it does not snow in Coulterville?
How many hours of daylight does Coulterville have in July?
When are sunrise and sunset in July in Coulterville?
How many hours of sunshine does Coulterville have in July?
When is the highest UV index in Coulterville?
How high is the UV index in July in Coulterville?
Average temperature in July
Coulterville, IL
- Average high temperature in July: 87.3°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in July: 68.5°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).
Average pressure in July
Coulterville, 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
Coulterville, IL
- Average wind speed in July: 5.6mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity in July
Coulterville, IL
- Average humidity in July: 78%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in July
Coulterville, IL
- Average rainfall in July: 2.05"
The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is February (0.94").
Average rainfall days in July
Coulterville, IL
- Average rainfall days in July: 15 days
The month with the highest number of rainy days is July (15 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in July
Coulterville, IL
- Average snowfall in July: 0"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in July
Coulterville, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (4.8 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
Coulterville, IL
- Average daylight in July: 14h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in July: 10h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in July
Coulterville, IL
- Average sunshine days in July: 13 days
The month with the most sunshine days is December (21.7 days).
The month with the least sunshine days is July (13 days).
Average UV index in July
Coulterville, 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
Coulterville, IL
- Average cloud cover in July: 28
The months with the most cloud cover are January and February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in July
Coulterville, 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).
Coulterville, Illinois, USA
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