July weather forecast
Berkeley, IL

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Weather in July

July, the same as June, is another warm summer month in Berkeley, Illinois, with temperature in the range of an average low of 66.6°F (19.2°C) and an average high of 81.9°F (27.7°C).

Temperature

July, recording an average high temperature of 81.9°F (27.7°C) and a low temperature of 66.6°F (19.2°C), is Berkeley's warmest month.

Heat index

The average heat index in July is computed to be a hot 87.8°F (31°C). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.
Heat index details are generally centered around shaded locations and a mild breeze. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. 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 July, the average relative humidity is 76%.

Rainfall

In Berkeley, in July, it is raining for 17.3 days, with typically 2.87" (73mm) of accumulated precipitation. In Berkeley, during the entire year, the rain falls for 149.4 days and collects up to 25.08" (637mm) of precipitation.

Snowfall

In Berkeley, Illinois, snow does not fall in June through September.

Daylight

The average length of the day in July in Berkeley is 14h and 52min.
On the first day of July in Berkeley, sunrise is at 5:20 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:10 pm CDT.

Sunshine

The months with the most sunshine are July and August, with an average of 10.1h of sunshine.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: An average UV index of 6 in July transforms into this advice:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the hottest in Berkeley?

Berkeley's warmest weather arrives in July, when temperatures average a high of 81.9°F (27.7°C) and a low of 66.6°F (19.2°C).

What are the temperatures in Berkeley in July?

In July, the average high-temperature and low-temperature in Berkeley are 81.9°F (27.7°C) and 66.6°F (19.2°C) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, in July is computed to be 87.8°F (31°C).

What is the average humidity in July in Berkeley?

In July, the average relative humidity in Berkeley, Illinois, is 76%.

How much does it rain in Berkeley in July?

In Berkeley, in July, it is raining for 17.3 days, with typically 2.87" (73mm) of accumulated precipitation.

When it does not snow in Berkeley?

In Berkeley, snow does not fall in June through September.

What is the average length of the day in July in Berkeley?

In Berkeley, Illinois, the average day length in July is 14h and 52min.

What time are sunrise and sunset in July in Berkeley?

In July, on the first day of the month, sunrise is at 5:20 am and sunset at 8:30 pm. On the last day of the month, in Berkeley, sunrise is at 5:45 am and sunset at 8:10 pm CDT.

What is the month with the most sunshine in Berkeley?

The months with the most sunshine are July and August, with an average of 10.1h of sunshine.

How many hours of sunshine does Berkeley have in July?

The average sunshine duration in July in Berkeley is 10.1h.

What are the months with the highest UV index in Berkeley?

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

What is the UV index reading in July in Berkeley?

In July, the average daily maximum UV index in Berkeley is 6. A UV Index reading of 6 to 7 represents a high health threat 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
Berkeley, IL

Average temperature in July - Berkeley, IL
  • Average high temperature in July: 81.9°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in July: 66.6°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average pressure in July
Berkeley, IL

Average pressure in July - Berkeley, 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
Berkeley, IL

Average wind speed in July - Berkeley, IL
  • Average wind speed in July: 6.5mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in July
Berkeley, IL

Average humidity in July - Berkeley, IL
  • Average humidity in July: 76%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).

Average rainfall in July
Berkeley, IL

Average rainfall in July - Berkeley, IL
  • Average rainfall in July: 2.87"

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is December (1.14").

Average rainfall days in July
Berkeley, IL

Average rainfall days in July - Berkeley, IL
  • Average rainfall days in July: 17.3 days

The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is February (5.1 days).

Average snowfall in July
Berkeley, IL

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

The month with the highest snowfall is February (3.86").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Berkeley, IL

Average snowfall days in July - Berkeley, IL
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in July / Average sunshine in July - Berkeley, 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: 10h and 1min

The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in July
Berkeley, IL

Average sunshine days in July - Berkeley, IL
  • Average sunshine days in July: 9.5 days

The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is July (9.5 days).

Average UV index in July
Berkeley, IL

Average UV index in July - Berkeley, 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
Berkeley, IL

Average cloud cover in July - Berkeley, IL
  • Average cloud cover in July: 31

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in July
Berkeley, IL

Average visibility in July - Berkeley, 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).

Berkeley, Illinois, USA

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