July weather forecast
Andover, IL

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Weather in July

July, the same as June, is another warm summer month in Andover, Illinois, with temperature in the range of an average high of 81.1°F (27.3°C) and an average low of 64.9°F (18.3°C).

Temperature

Andover reaches its highest average temperatures in July, measuring 81.1°F (27.3°C) at the peak and 64.9°F (18.3°C) at the lowest.

Heat index

July's mean heat index is calculated to be a hot 87.8°F (31°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Know that the heat index computations account for shaded terrains and slight winds. 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 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical to babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.

Humidity

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

Rainfall

In Andover, in July, during 14.7 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. Throughout the year, there are 127.7 rainfall days, and 17.8" (452mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In Andover, the average length of the day in July is 14h and 49min.
On the first day of the month, sunrise is at 5:32 am and sunset at 8:38 pm. On the last day of July, sunrise is at 5:56 am and sunset at 8:18 pm CDT.

Sunshine

June and July, with an average of 10.1h of sunshine, are months with the most sunshine.

UV index

June and July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In July, the UV index of 6 transforms into the following advice:
Fend off overexposure. Sun protection is vital. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Updated: Jul 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the hottest time of year?

July is the month when Andover experiences its warmest temperatures, averaging a high of 81.1°F (27.3°C) and a low of 64.9°F (18.3°C).

What is the average July temperature?

During July, Andover experiences an average high-temperature of 81.1°F (27.3°C) and a low-temperature of 64.9°F (18.3°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is calculated to be 87.8°F (31°C).

What is the most humid month?

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

What is the average humidity in July in Andover?

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

How much does it rain in Andover in July?

In Andover, in July, during 14.7 rainfall days, 1.89" (48mm) 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 Andover?

The average day length in July is 14h and 49min.

When is the sunrise / sunset in July?

On the first day of July, sunrise is at 5:32 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 8:18 pm CDT.

What are the months with the most sunshine?

The months with the most sunshine are June and July, with an average of 10.1h of sunshine.

How many hours of sunshine does Andover have in July?

In July, the average sunshine duration is 10.1h.

When is the highest UV index in Andover?

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

What is the UV index reading in July?

The average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Andover, IL

Average temperature in July - Andover, IL
  • Average high temperature in July: 81.1°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (28.2°F).

  • Average low temperature in July: 64.9°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

Average pressure in July
Andover, IL

Average pressure in July - Andover, IL
  • Average pressure in July: 29.96"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in July
Andover, IL

Average wind speed in July - Andover, IL
  • Average wind speed in July: 6.8mph

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

Average humidity in July
Andover, IL

Average humidity in July - Andover, 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
Andover, IL

Average rainfall in July - Andover, IL
  • Average rainfall in July: 1.89"

The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is December (0.71").

Average rainfall days in July
Andover, IL

Average rainfall days in July - Andover, IL
  • Average rainfall days in July: 14.7 days

The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (4 days).

Average snowfall in July
Andover, IL

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

The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Andover, IL

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

The month with the highest number of snowfall days is January (10.5 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
Andover, IL

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in July: 10h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in July
Andover, IL

Average sunshine days in July - Andover, IL
  • Average sunshine days in July: 11.2 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.2 days).

Average UV index in July
Andover, IL

Average UV index in July - Andover, 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 January (UV index 1).

Average cloud cover in July
Andover, IL

Average cloud cover in July - Andover, 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
Andover, IL

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

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

Andover, Illinois, USA

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