July weather forecast
Collinsville, OH

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Weather in July

July, the same as June, is a moderately hot summer month in Collinsville, Ohio, with temperature in the range of an average low of 64.6°F (18.1°C) and an average high of 81.5°F (27.5°C).

Temperature

July stands out as Collinsville's warmest month, with temperatures ranging between an average high of 81.5°F (27.5°C) and a low of 64.6°F (18.1°C).

Heat index

July's average heat index is evaluated at a tropical 87.8°F (31°C). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.
In the scope of the heat index, its values resonate with shade and light wind conditions. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.

Humidity

In Collinsville, the average relative humidity in July is 81%.

Rainfall

In Collinsville, in July, it is raining for 17.3 days, with typically 2.68" (68mm) of accumulated precipitation. In Collinsville, during the entire year, the rain falls for 169 days and collects up to 31.85" (809mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In July, the average length of the day is 14h and 38min.
On the first day of July in Collinsville, Ohio, sunrise is at 6:15 am and sunset at 9:09 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 8:51 pm EDT.

Sunshine

June and July, with an average of 10.2h of sunshine, are months with the most sunshine.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 6 during July translates into the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the hottest?

In Collinsville, July is known for its average highest temperatures, reaching a high of 81.5°F (27.5°C) and a low of 64.6°F (18.1°C).

What are July temperatures?

In July, the average high-temperature and low-temperature in Collinsville are 81.5°F (27.5°C) and 64.6°F (18.1°C) respectively. In July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, is evaluated at 87.8°F (31°C).

What is the average humidity in July?

In Collinsville, the average relative humidity in July is 81%.

How many days does it rain in July?

In Collinsville, in July, during 17.3 rainfall days, 2.68" (68mm) of precipitation is typically accumulated.

When it does not snow?

May through September are months without snowfall.

What is the average length of the day in July?

In July, the average day length is 14h and 38min.

When are sunrise and sunset in July in Collinsville?

On the first day of July in Collinsville, sunrise is at 6:15 am and sunset at 9:09 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 8:51 pm EDT.

What are the months with the most sunshine?

The months with the most sunshine are June and July, with an average of 10.2h of sunshine.

How many hours of sunshine does Collinsville have in July?

In Collinsville, the average sunshine duration in July is 10.2h.

What is the month with the highest UV index?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Collinsville.

What is the UV index intensity in July?

The average daily maximum UV index in July is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Collinsville, OH

Average temperature in July - Collinsville, OH
  • Average high temperature in July: 81.5°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in July: 64.6°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in July
Collinsville, OH

Average pressure in July - Collinsville, OH
  • Average pressure in July: 29.97"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in July
Collinsville, OH

Average wind speed in July - Collinsville, OH
  • Average wind speed in July: 5.7mph

The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in July
Collinsville, OH

Average humidity in July - Collinsville, OH
  • Average humidity in July: 81%

The months with the highest relative humidity are January, February and December (82%).
The months with the lowest relative humidity are October and November (75%).

Average rainfall in July
Collinsville, OH

Average rainfall in July - Collinsville, OH
  • Average rainfall in July: 2.68"

The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in July
Collinsville, OH

Average rainfall days in July - Collinsville, OH
  • Average rainfall days in July: 17.3 days

The month with the highest number of rainy days is May (20.5 days).
The month with the least rainy days is February (9.2 days).

Average snowfall in July
Collinsville, OH

Average snowfall in July - Collinsville, OH
  • Average snowfall in July: 0"

The month with the highest snowfall is January (3.11").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Collinsville, OH

Average snowfall days in July - Collinsville, OH
  • 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
Collinsville, OH

Average daylight in July / Average sunshine in July - Collinsville, OH
  • Average daylight in July: 14h and 4min

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 24min).

  • Average sunshine in July: 10h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in July
Collinsville, OH

Average sunshine days in July - Collinsville, OH
  • Average sunshine days in July: 11 days

The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is May (8.8 days).

Average UV index in July
Collinsville, OH

Average UV index in July - Collinsville, OH
  • 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
Collinsville, OH

Average cloud cover in July - Collinsville, OH
  • Average cloud cover in July: 32

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in July
Collinsville, OH

Average visibility in July - Collinsville, OH
  • 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).

Collinsville, Ohio, USA

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