July weather forecast
La Harpe, IL

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Weather in July

July, like June, in La Harpe, Illinois, is another warm summer month, with an average temperature fluctuating between 82.6°F (28.1°C) and 66.2°F (19°C).

Temperature

July, marked by an average high-temperature of 82.6°F (28.1°C) and a low-temperature of 66.2°F (19°C), is the warmest month.

Heat index

The heat index value during July is appraised at a tropical 91.4°F (33°C). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.

Humidity

With an average relative humidity of 83%, July is the most humid month.

Rainfall

In July, the rain falls for 15 days. Throughout July, 2.13" (54mm) of precipitation is accumulated. Throughout the year, in La Harpe, there are 127.6 rainfall days, and 21.02" (534mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in July is 14h and 44min.
On the first day of the month, sunrise is at 5:37 am and sunset at 8:38 pm. On the last day of July, sunrise is at 6:00 am and sunset at 8:19 pm CDT.

Sunshine

The months with the most sunshine are June and July, with an average of 10h of sunshine.

UV index

The months with the highest UV index are June through August, 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 the average person.
Note: In July, a daily maximum UV index of 6 leads to the following instructions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Updated: Jun 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the hottest time of year?

La Harpe's temperatures peak on average in July, reaching 82.6°F (28.1°C) at their highest and 66.2°F (19°C) at their lowest.

How hot is it in July?

During July, La Harpe experiences an average high-temperature of 82.6°F (28.1°C) and a low-temperature of 66.2°F (19°C). In July, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, is appraised at 91.4°F (33°C).

What is the most humid month?

July is the most humid month, with an average relative humidity of 83%.

What is the average humidity in July?

The average relative humidity in July is 83%.

How many days does it rain in July?

In La Harpe, during July, the rain falls for 15 days and regularly aggregates up to 2.13" (54mm) of precipitation.

When it does not snow?

In La Harpe, snow does not fall in May through September.

How many hours of daylight does La Harpe have in July?

The average day length in July in La Harpe is 14h and 44min.

What time are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:37 am and sunset at 8:38 pm. On the last day of the month, in La Harpe, sunrise is at 6:00 am and sunset at 8:19 pm CDT.

What is the month with the most sunshine?

The months with the most sunshine are June and July, with an average of 10h of sunshine.

How many hours of sunshine does La Harpe have in July?

In July, the average sunshine duration is 10h.

What is the month with the highest UV index?

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

What is the UV index reading in July in La Harpe?

The average daily maximum UV index in July is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health 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
La Harpe, IL

Average temperature in July - La Harpe, IL
  • Average high temperature in July: 82.6°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (30.9°F).

  • Average low temperature in July: 66.2°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).

Average pressure in July
La Harpe, IL

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in July
La Harpe, IL

Average wind speed in July - La Harpe, IL
  • Average wind speed in July: 6.7mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).

Average humidity in July
La Harpe, IL

Average humidity in July - La Harpe, IL
  • Average humidity in July: 83%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).

Average rainfall in July
La Harpe, IL

Average rainfall in July - La Harpe, IL
  • Average rainfall in July: 2.13"

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is January (0.83").

Average rainfall days in July
La Harpe, IL

Average rainfall days in July - La Harpe, IL
  • Average rainfall days in July: 15 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (4.3 days).

Average snowfall in July
La Harpe, IL

Average snowfall in July - La Harpe, IL
  • Average snowfall in July: 0"

The month with the highest snowfall is January (3.15").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
La Harpe, IL

Average snowfall days in July - La Harpe, 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).

Average daylight in July /
Average sunshine in July
La Harpe, IL

Average daylight in July / Average sunshine in July - La Harpe, 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 0min

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

Average sunshine days in July
La Harpe, IL

Average sunshine days in July - La Harpe, IL
  • Average sunshine days in July: 14.4 days

The month with the most sunshine days is December (20 days).
The months with the least sunshine days are May and June (11.8 days).

Average UV index in July
La Harpe, IL

Average UV index in July - La Harpe, 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).

Average cloud cover in July
La Harpe, IL

Average cloud cover in July - La Harpe, IL
  • Average cloud cover in July: 31

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 30).

Average visibility in July
La Harpe, IL

Average visibility in July - La Harpe, IL
  • Average visibility in July: 6mi

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

La Harpe, Illinois, USA

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