July weather forecast
Farmington, IL

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Weather in July

July, the same as June, is another warm summer month in Farmington, Illinois, with an average temperature fluctuating between 65.1°F (18.4°C) and 82°F (27.8°C).

Temperature

July, with an average high of 82°F (27.8°C) and a low of 65.1°F (18.4°C), signifies the warmest month of the year.

Heat index

The heat index for July is appraised at a tropical 89.6°F (32°C). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.
Remember that heat index calculations are made for conditions in the shade with light wind. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.

Humidity

With an average relative humidity of 84%, July is the most humid month in Farmington.

Rainfall

In Farmington, during July, the rain falls for 17.1 days and regularly aggregates up to 2.4" (61mm) of precipitation. In Farmington, during the entire year, the rain falls for 145.3 days and collects up to 28.62" (727mm) of precipitation.

Snowfall

In Farmington, snow does not fall in May through September.

Daylight

The average length of the day in July in Farmington is 14h and 45min.
On the first day of July, sunrise is at 5:33 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 8:16 pm CDT.

Sunshine

The average sunshine in July is 10.1h.

UV index

The months with the highest UV index are June and July, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In July, a daily UV index of 6 turns into the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
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 Farmington?

In Farmington, the peak average temperatures are observed in July, with a high of 82°F (27.8°C) and a low of 65.1°F (18.4°C).

What is the usual temperature for Farmington in July?

In Farmington, in July, the average high-temperature is 82°F (27.8°C), and the average low-temperature is 65.1°F (18.4°C). In July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is appraised at 89.6°F (32°C).

What is the most humid month in Farmington?

With an average relative humidity of 84%, July is the most humid month in Farmington.

What is the average humidity in July in Farmington?

In July, the average relative humidity in Farmington is 84%.

How much does it rain in Farmington in July?

In Farmington, Illinois, in July, it is raining for 17.1 days, with typically 2.4" (61mm) of accumulated precipitation.

When it does not snow in Farmington?

In Farmington, Illinois, snow does not fall in May through September.

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

The average day length in July is 14h and 45min.

When is the sunrise / sunset in July in Farmington?

In July, on the first day of the month, sunrise is at 5:33 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 8:16 pm CDT.

How many hours of sunshine does Farmington have in July?

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

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

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

What is the UV index reading in July in Farmington?

In July, the average daily maximum UV index in Farmington, Illinois, is 6. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to the Sun's 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
Farmington, IL

Average temperature in July - Farmington, 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 (30.4°F).

  • Average low temperature in July: 65.1°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

Average pressure in July
Farmington, IL

Average pressure in July - Farmington, 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
Farmington, IL

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

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

Average humidity in July
Farmington, IL

Average humidity in July - Farmington, 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 (72%).

Average rainfall in July
Farmington, IL

Average rainfall in July - Farmington, IL
  • Average rainfall in July: 2.4"

The wettest month (with the highest rainfall) is May (4.29").
The driest months (with the least rainfall) are February and December (1.42").

Average rainfall days in July
Farmington, IL

Average rainfall days in July - Farmington, IL
  • Average rainfall days in July: 17.1 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (5.8 days).

Average snowfall in July
Farmington, IL

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

The month with the highest snowfall is January (3.78").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Farmington, IL

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

The month with the highest number of snowfall days is January (10.6 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
Farmington, IL

Average daylight in July / Average sunshine in July - Farmington, 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 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in July
Farmington, IL

Average sunshine days in July - Farmington, IL
  • Average sunshine days in July: 12.1 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is June (11.3 days).

Average UV index in July
Farmington, IL

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

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in July
Farmington, IL

Average cloud cover in July - Farmington, 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
Farmington, IL

Average visibility in July - Farmington, 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).

Farmington, Illinois, USA

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