July weather forecast
Modesto, IL

Share

Weather in July

July, like June, in Modesto, Illinois, is another warm summer month, with an average temperature fluctuating between 66.7°F (19.3°C) and 83.3°F (28.5°C).

Temperature

Modesto, Illinois, registers the highest average temperatures during the month of July, with peaks of 83.3°F (28.5°C) and lows of 66.7°F (19.3°C).

Heat index

The heat index value during July is calculated to be a tropical 93.2°F (34°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a numerical representation of warmth when taking temperature and moisture levels into account. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.

Humidity

With an average relative humidity of 82%, July is the most humid month.

Rainfall

In July, the rain falls for 15.7 days. Throughout July, 2.52" (64mm) of precipitation is accumulated. In Modesto, Illinois, during the entire year, the rain falls for 151.5 days and collects up to 31.3" (795mm) of precipitation.

Snowfall

In Modesto, Illinois, snow does not fall in May through October.

Daylight

In July, the average length of the day in Modesto is 14h and 38min.
On the first day of the month, sunrise is at 5:36 am and sunset at 8:31 pm. On the last day of July, sunrise is at 5:59 am and sunset at 8:13 pm CDT.

Sunshine

The average sunshine in July is 10.1h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 6 in July suggests the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. 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. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
[Resources]

Frequently asked questions

What is the hottest time of year in Modesto?

Modesto's warmest month, July, registers temperatures that range from a high of 83.3°F (28.5°C) to a low of 66.7°F (19.3°C).

How hot is it in Modesto in July?

In July, in Modesto, the average high-temperature is 83.3°F (28.5°C), and the average low-temperature is 66.7°F (19.3°C). In July, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is calculated to be 93.2°F (34°C).

What is the most humid month in Modesto?

July is the most humid month in Modesto, Illinois, with an average relative humidity of 82%.

What is the average humidity in July in Modesto?

In July, the average relative humidity is 82%.

How many days does it rain in July in Modesto?

In Modesto, during July, the rain falls for 15.7 days and regularly aggregates up to 2.52" (64mm) of precipitation.

When it does not snow in Modesto?

In Modesto, Illinois, snow does not fall in May through October.

How many hours of daylight does Modesto have in July?

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

What time are sunrise and sunset in July in Modesto?

In July, on the first day of the month, sunrise is at 5:36 am and sunset at 8:31 pm. On the last day of the month, in Modesto, Illinois, sunrise is at 5:59 am and sunset at 8:13 pm CDT.

How long on average sun shines in July in Modesto?

In July, the average sunshine duration is 10.1h.

When is the highest UV index in Modesto?

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

How high is the UV index in July in Modesto?

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

Average temperature in July - Modesto, IL
  • Average high temperature in July: 83.3°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (34.2°F).

  • Average low temperature in July: 66.7°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

[Resources]

Average pressure in July
Modesto, IL

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

[Resources]

Average wind speed in July
Modesto, IL

Average wind speed in July - Modesto, IL
  • Average wind speed in July: 6mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

[Resources]

Average humidity in July
Modesto, IL

Average humidity in July - Modesto, IL
  • Average humidity in July: 82%

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).

[Resources]

Average rainfall in July
Modesto, IL

Average rainfall in July - Modesto, IL
  • Average rainfall in July: 2.52"

The wettest month (with the highest rainfall) is June (3.86").
The driest month (with the least rainfall) is December (1.73").

[Resources]

Average rainfall days in July
Modesto, IL

Average rainfall days in July - Modesto, IL
  • Average rainfall days in July: 15.7 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (7.4 days).

[Resources]

Average snowfall in July
Modesto, IL

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

The month with the highest snowfall is February (3.19").
The months with the least snowfall are May, June, July, August, September and October (0").

[Resources]

Average snowfall days in July
Modesto, IL

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

The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

[Resources]

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

Average daylight in July / Average sunshine in July - Modesto, IL
  • 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 month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

[Resources]

Average sunshine days in July
Modesto, IL

Average sunshine days in July - Modesto, IL
  • Average sunshine days in July: 12.3 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (10.6 days).

[Resources]

Average UV index in July
Modesto, IL

Average UV index in July - Modesto, 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).

[Resources]

Average cloud cover in July
Modesto, IL

Average cloud cover in July - Modesto, IL
  • Average cloud cover in July: 30

The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June, July, August and September (Cloud cover 30).

[Resources]

Average visibility in July
Modesto, IL

Average visibility in July - Modesto, 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).

[Resources]

Modesto, Illinois, USA

Weather forecast for your location

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