July weather forecast
Lee, IL

Share

Weather in July

July, like June, in Lee, Illinois, is another warm summer month, with an average temperature varying between 63.1°F (17.3°C) and 79.9°F (26.6°C).

Temperature

July, having an average high-temperature of 79.9°F (26.6°C) and an average low-temperature of 63.1°F (17.3°C), is the warmest month.

Humidity

The months with the highest humidity are January and July, with an average relative humidity of 85%.

Rainfall

In Lee, in July, it is raining for 13.9 days, with typically 1.65" (42mm) of accumulated precipitation. In Lee, during the entire year, the rain falls for 124.5 days and collects up to 14.49" (368mm) of precipitation.

Snowfall

May through September are months without snowfall in Lee.

Daylight

In Lee, the average length of the day in July is 14h and 52min.
On the first day of July, sunrise is at 5:25 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:14 pm CDT.

Sunshine

The average sunshine in July is 9.4h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index of 5 during July translates into these guidelines:
Undertake precautions - It is suggested to shield oneself from sunburn. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the hottest time of year in Lee?

Lee's July weather reaches an average high of 79.9°F (26.6°C) and an average low of 63.1°F (17.3°C), making it the warmest month.

What are July temperatures in Lee?

In July, the average high-temperature and low-temperature in Lee are 79.9°F (26.6°C) and 63.1°F (17.3°C) respectively.

What is the most humid month in Lee?

The months with the highest humidity in Lee, Illinois, are January and July, with an average relative humidity of 85%.

What is the average humidity in July in Lee?

In Lee, Illinois, the average relative humidity in July is 85%.

How many days does it rain in July in Lee?

In July, in Lee, the rain falls for 13.9 days. Throughout July, 1.65" (42mm) of precipitation is accumulated.

When it does not snow in Lee?

May through September are months without snowfall in Lee, Illinois.

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

The average day length in July is 14h and 52min.

What time are sunrise and sunset in July in Lee?

On the first day of July in Lee, sunrise is at 5:25 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:14 pm CDT.

How many hours of sunshine does Lee have in July?

In Lee, the average sunshine duration in July is 9.4h.

When is the highest UV index in Lee?

The months with the highest UV index are May through August, with an average maximum UV index of 5.

How high is the UV index in July in Lee?

In July, the average daily maximum UV index in Lee is 5. A UV Index reading of 3 to 5 represents a moderate 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
Lee, IL

Average temperature in July - Lee, IL
  • Average high temperature in July: 79.9°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in July: 63.1°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).

Average pressure in July
Lee, IL

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

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in July
Lee, IL

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

The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in July
Lee, IL

Average humidity in July - Lee, IL
  • Average humidity in July: 85%

The months with the highest relative humidity are January and July (85%).
The month with the lowest relative humidity is October (74%).

Average rainfall in July
Lee, IL

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

The wettest month (with the highest rainfall) is June (2.13").
The driest month (with the least rainfall) is February (0.55").

Average rainfall days in July
Lee, IL

Average rainfall days in July - Lee, IL
  • Average rainfall days in July: 13.9 days

The month with the highest number of rainy days is June (16 days).
The month with the least rainy days is February (3.8 days).

Average snowfall in July
Lee, IL

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

The month with the highest snowfall is January (2.2").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Lee, IL

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

The month with the highest number of snowfall days is January (10.3 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
Lee, IL

Average daylight in July / Average sunshine in July - Lee, 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: 9h and 2min

The month with the most sunshine is June (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in July
Lee, IL

Average sunshine days in July - Lee, IL
  • Average sunshine days in July: 12.7 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is June (10.9 days).

Average UV index in July
Lee, IL

Average UV index in July - Lee, IL
  • Average UV index in July: 5

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in July
Lee, IL

Average cloud cover in July - Lee, IL
  • Average cloud cover in July: 37

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 34).

Average visibility in July
Lee, IL

Average visibility in July - Lee, IL
  • Average visibility in July: 5mi

The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).

Lee, Illinois, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location