July weather forecast
Bonnie, IL

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Weather in July

July, like June, in Bonnie, Illinois, is another warm summer month, with an average temperature varying between 85.6°F (29.8°C) and 67.8°F (19.9°C).

Temperature

July is the month when Bonnie sees the highest average temperatures, with a high of 85.6°F (29.8°C) and a low of 67.8°F (19.9°C).

Heat index

In July, the heat index is estimated at a very hot 98.6°F (37°C). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

In July, the average relative humidity is 79%.

Rainfall

In Bonnie, in July, it is raining for 15.9 days, with typically 2.76" (70mm) of accumulated precipitation. In Bonnie, during the entire year, the rain falls for 145.8 days and collects up to 29.13" (740mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in July is 14h and 31min.
On the first day of July, sunrise is at 5:36 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 8:05 pm CDT.

Sunshine

The average sunshine in July is 10.4h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 6 during July leads to these advisories:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.

Frequently asked questions

What part of the year is the hottest?

With average high and low temperatures of 85.6°F (29.8°C) and 67.8°F (19.9°C) respectively, July is Bonnie's warmest month.

How hot is July?

The high-temperature during July is 85.6°F (29.8°C) and the low-temperature is 67.8°F (19.9°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in July is estimated at 98.6°F (37°C).

What is the average humidity in July?

The average relative humidity in July is 79%.

How much does it rain in July?

In Bonnie, during July, the rain falls for 15.9 days and regularly aggregates up to 2.76" (70mm) of precipitation.

When it does not snow?

May through October are months without snowfall in Bonnie, Illinois.

What is the average length of the day in July?

In July, the average day length is 14h and 31min.

When are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:36 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 8:05 pm CDT.

How many hours of sunshine does Bonnie have in July?

In July, the average sunshine duration is 10.4h.

What is the month with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 6.

What is the UV index intensity in July?

In July, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.
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
Bonnie, IL

Average temperature in July - Bonnie, IL
  • Average high temperature in July: 85.6°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in July: 67.8°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

Average pressure in July
Bonnie, IL

Average pressure in July - Bonnie, IL
  • Average pressure in July: 29.98"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
Bonnie, IL

Average wind speed in July - Bonnie, IL
  • Average wind speed in July: 5.9mph

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).

Average humidity in July
Bonnie, IL

Average humidity in July - Bonnie, IL
  • Average humidity in July: 79%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).

Average rainfall in July
Bonnie, IL

Average rainfall in July - Bonnie, IL
  • Average rainfall in July: 2.76"

The wettest month (with the highest rainfall) is April (3.78").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in July
Bonnie, IL

Average rainfall days in July - Bonnie, IL
  • Average rainfall days in July: 15.9 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (7.5 days).

Average snowfall in July
Bonnie, IL

Average snowfall in July - Bonnie, IL
  • Average snowfall in July: 0"

The month with the highest snowfall is February (1.73").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in July
Bonnie, IL

Average snowfall days in July - Bonnie, 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, September and October (0 days).

Average daylight in July /
Average sunshine in July
Bonnie, IL

Average daylight in July / Average sunshine in July - Bonnie, 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 2min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in July
Bonnie, IL

Average sunshine days in July - Bonnie, IL
  • Average sunshine days in July: 13.3 days

The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in July
Bonnie, IL

Average UV index in July - Bonnie, IL
  • Average UV index in July: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, November and December (UV index 2).

Average cloud cover in July
Bonnie, IL

Average cloud cover in July - Bonnie, IL
  • Average cloud cover in July: 28

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 27).

Average visibility in July
Bonnie, IL

Average visibility in July - Bonnie, 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).

Bonnie, Illinois, USA

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