July weather forecast
Peoria, IL

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Street lights and tall buildings in the city of Peoria, Illinois, as well as the night sky reflected in the waterfront
Street lights and tall buildings in the city of Peoria, Illinois, as well as the night sky reflected in the waterfront

Weather in July

July distinguishes itself as the warmest month in Peoria, asserting the summer peak. It showcases maximum high temperatures and minimal wind speed, crafting an atmosphere of lazy summer days and tranquil warm nights. The city sees a reduction in rainfall, giving way to clear, sunny skies optimal for enjoying outdoor recreational activities. The town's serene riverside spots and extensive parks become popular hangout zones, underlining the seasonal charm. Despite being hot and humid, the gentle summer breezes especially in the evenings provide a respite and balance the temperature extremes.

Temperature

Peoria's July weather reaches an average high of 82°F (27.8°C) and an average low of 65.3°F (18.5°C), making it the warmest month.

Heat index

In July, the average heat index is estimated at a tropical 89.6°F (32°C). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', takes into account both air temperature and humidity to illustrate what people actually feel. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.

Humidity

July is the most humid month, with an average relative humidity of 84%.

Rainfall

In July, the rain falls for 14.9 days. Throughout July, 1.65" (42mm) of precipitation is accumulated. In Peoria, during the entire year, the rain falls for 129.2 days and collects up to 17.24" (438mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In Peoria, the average length of the day in July is 14h and 45min.
On the first day of July, sunrise is at 5:31 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 8:14 pm CDT.

Sunshine

In Peoria, the average sunshine in July is 10.1h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: An average UV index of 6 in July transforms into this advice:
Deter overexposure. Protecting against the sun's effects is essential. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.

Frequently asked questions

What part of the year is the hottest?

The highest temperatures are recorded in July, with averages reaching a high of 82°F (27.8°C) and a low of 65.3°F (18.5°C).

What is the average July temperature?

The high-temperature, in July, in Peoria, records 82°F (27.8°C), while the low-temperature is 65.3°F (18.5°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, in July is estimated at 89.6°F (32°C).

What is the most humid month?

July is the most humid month, with an average relative humidity of 84%.

What is the average humidity in July?

The average relative humidity in July is 84%.

How many days does it rain in July in Peoria?

In Peoria, in July, during 14.9 rainfall days, 1.65" (42mm) 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 Peoria, the average day length in July is 14h and 45min.

When is the sunrise / sunset in July in Peoria?

On the first day of July, sunrise is at 5:31 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 8:14 pm CDT.

How long on average sun shines in July in Peoria?

In Peoria, the average sunshine duration in July is 10.1h.

What are the months with the highest UV index?

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

How high is the UV index in July?

In July, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health threat from unsafe 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
Peoria, IL

Average temperature in July - Peoria, 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 (30.7°F).

  • Average low temperature in July: 65.3°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in July
Peoria, IL

Average pressure in July - Peoria, IL
  • Average pressure in July: 29.97"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in July
Peoria, IL

Average wind speed in July - Peoria, IL
  • Average wind speed in July: 6.6mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in July
Peoria, IL

Average humidity in July - Peoria, 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 (71%).

Average rainfall in July
Peoria, IL

Average rainfall in July - Peoria, IL
  • Average rainfall in July: 1.65"

The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is January (0.75").

Average rainfall days in July
Peoria, IL

Average rainfall days in July - Peoria, IL
  • Average rainfall days in July: 14.9 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (4.6 days).

Average snowfall in July
Peoria, IL

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

The month with the highest snowfall is January (2.36").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Peoria, IL

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

The month with the highest number of snowfall days is January (9 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
Peoria, IL

Average daylight in July / Average sunshine in July - Peoria, 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 18min).

  • Average sunshine in July: 10h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in July
Peoria, IL

Average sunshine days in July - Peoria, IL
  • Average sunshine days in July: 12.6 days

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in July
Peoria, IL

Average UV index in July - Peoria, 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
Peoria, IL

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

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 29).

Average visibility in July
Peoria, IL

Average visibility in July - Peoria, 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).

Peoria, Illinois, USA

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