July weather forecast
Hartsburg, IL

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Weather in July

July, the same as June, is another warm summer month in Hartsburg, Illinois, with an average temperature varying between 82°F (27.8°C) and 65.5°F (18.6°C).

Temperature

July, recording an average high temperature of 82°F (27.8°C) and a low temperature of 65.5°F (18.6°C), is Hartsburg's warmest month.

Heat index

For most parts of July, the heat index is computed to be a tropical 89.6°F (32°C). Exhaustion becomes probable with enduring exposure and activity, potentially causing heat cramps.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold great significance to children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.

Humidity

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

Rainfall

In Hartsburg, in July, it is raining for 15.2 days, with typically 1.89" (48mm) of accumulated precipitation. Throughout the year, there are 135 rainfall days, and 20.28" (515mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Hartsburg.

Daylight

In Hartsburg, the average length of the day in July is 14h and 42min.
On the first day of July in Hartsburg, sunrise is at 5:32 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 8:12 pm CDT.

Sunshine

The average sunshine in July in Hartsburg is 10h.

UV index

The months with the highest UV index in Hartsburg, Illinois, are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 6 in July translates into these instructions:
Guard oneself from overexposure. Defence against sun injury is vital. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the warmest months in Hartsburg?

Hartsburg reaches its average highest temperatures in July, measuring 82°F (27.8°C) at the peak and 65.5°F (18.6°C) at the lowest.

What are the temperatures in Hartsburg in July?

In July, in Hartsburg, the average high-temperature is 82°F (27.8°C), and the average low-temperature is 65.5°F (18.6°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in July is computed to be 89.6°F (32°C).

What is the most humid month in Hartsburg?

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

What is the average humidity in July in Hartsburg?

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

How many days does it rain in July in Hartsburg?

In July, the rain falls for 15.2 days. Throughout July, 1.89" (48mm) of precipitation is accumulated.

When it does not snow in Hartsburg?

May through October are months without snowfall in Hartsburg, Illinois.

How many hours of daylight does Hartsburg have in July?

In July, the average day length is 14h and 42min.

When are sunrise and sunset in July in Hartsburg?

In July, on the first day of the month, sunrise is at 5:32 am and sunset at 8:31 pm. On the last day of the month, in Hartsburg, Illinois, sunrise is at 5:55 am and sunset at 8:12 pm CDT.

How many hours of sunshine does Hartsburg have in July?

The average sunshine duration in July in Hartsburg is 10h.

When is the highest UV index in Hartsburg?

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

What is the UV index intensity in July in Hartsburg?

In July, the average daily maximum UV index in Hartsburg, Illinois, is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability 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
Hartsburg, IL

Average temperature in July - Hartsburg, 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 (32.2°F).

  • Average low temperature in July: 65.5°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).

Average pressure in July
Hartsburg, IL

Average pressure in July - Hartsburg, 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
Hartsburg, IL

Average wind speed in July - Hartsburg, IL
  • Average wind speed in July: 6.3mph

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 (6.3mph).

Average humidity in July
Hartsburg, IL

Average humidity in July - Hartsburg, 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 (70%).

Average rainfall in July
Hartsburg, IL

Average rainfall in July - Hartsburg, 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 (1.02").

Average rainfall days in July
Hartsburg, IL

Average rainfall days in July - Hartsburg, IL
  • Average rainfall days in July: 15.2 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (5.4 days).

Average snowfall in July
Hartsburg, IL

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

The month with the highest snowfall is January (2.76").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in July
Hartsburg, IL

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

The month with the highest number of snowfall days is January (8.2 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
Hartsburg, IL

Average daylight in July / Average sunshine in July - Hartsburg, 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 24min).

  • Average sunshine in July: 10h and 0min

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 0min).

Average sunshine days in July
Hartsburg, IL

Average sunshine days in July - Hartsburg, IL
  • Average sunshine days in July: 12.2 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in July
Hartsburg, IL

Average UV index in July - Hartsburg, 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
Hartsburg, IL

Average cloud cover in July - Hartsburg, 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
Hartsburg, IL

Average visibility in July - Hartsburg, 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).

Hartsburg, Illinois, USA

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