July weather forecast
Fairbury, IL

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Weather in July

July, like June, in Fairbury, Illinois, is another warm summer month, with an average temperature fluctuating between 80.8°F (27.1°C) and 64.6°F (18.1°C).

Temperature

In Fairbury, temperatures reach their average annual highs in July, measuring 80.8°F (27.1°C) and a minimum average of 64.6°F (18.1°C).

Heat index

The heat index in July is estimated at a tropical 87.8°F (31°C). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.
Note that heat index values are valued for light wind and location in the shade. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', takes into account both air temperature and humidity to illustrate what people actually feel. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.

Humidity

With an average relative humidity of 86%, July is the most humid month.

Rainfall

In Fairbury, in July, it is raining for 15.3 days, with typically 2.09" (53mm) of accumulated precipitation. In Fairbury, during the entire year, the rain falls for 130.5 days and collects up to 17.44" (443mm) of precipitation.

Snowfall

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

Daylight

In Fairbury, the average length of the day in July is 14h and 45min.
On the first day of July, sunrise is at 5:26 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:10 pm CDT.

Sunshine

The average sunshine in July is 9.6h.

UV index

June and July, 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 health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 6 in July translates into these instructions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Boost your sun resistance with garments that are densely woven yet spacious.
Updated: Aug 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month?

July registers as the month with the average highest temperatures, reaching 80.8°F (27.1°C) at its peak and 64.6°F (18.1°C) at the lowest.

What are July temperatures?

In Fairbury, 80.8°F (27.1°C) is the average high-temperature and 64.6°F (18.1°C) is the average low-temperature during July. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in July is estimated at 87.8°F (31°C).

What is the most humid month?

The most humid month is July, with an average relative humidity of 86%.

What is the average humidity in July?

The average relative humidity in July is 86%.

How much does it rain in July?

In Fairbury, during July, the rain falls for 15.3 days and regularly aggregates up to 2.09" (53mm) of precipitation.

When it does not snow?

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

What is the average length of the day in July?

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

When are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:26 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:10 pm CDT.

How many hours of sunshine does Fairbury have in July?

In July, the average sunshine duration is 9.6h.

When is the highest UV index?

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

What is the UV index intensity in July?

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

Average temperature in July - Fairbury, IL
  • Average high temperature in July: 80.8°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in July: 64.6°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

Average pressure in July
Fairbury, IL

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in July
Fairbury, IL

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

The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

Average humidity in July
Fairbury, IL

Average humidity in July - Fairbury, IL
  • Average humidity in July: 86%

The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is October (71%).

Average rainfall in July
Fairbury, IL

Average rainfall in July - Fairbury, IL
  • Average rainfall in July: 2.09"

The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is January (0.79").

Average rainfall days in July
Fairbury, IL

Average rainfall days in July - Fairbury, IL
  • Average rainfall days in July: 15.3 days

The month with the highest number of rainy days is May (17 days).
The months with the least rainy days are January and February (5 days).

Average snowfall in July
Fairbury, IL

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

The month with the highest snowfall is January (2.09").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Fairbury, IL

Average snowfall days in July - Fairbury, 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
Fairbury, IL

Average daylight in July / Average sunshine in July - Fairbury, IL
  • Average daylight in July: 14h and 5min

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: 9h and 4min

The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in July
Fairbury, IL

Average sunshine days in July - Fairbury, IL
  • Average sunshine days in July: 11.4 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.4 days).

Average UV index in July
Fairbury, IL

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

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

Average cloud cover in July
Fairbury, IL

Average cloud cover in July - Fairbury, IL
  • Average cloud cover in July: 35

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 32).

Average visibility in July
Fairbury, IL

Average visibility in July - Fairbury, 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).

Fairbury, Illinois, USA

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