August weather forecast
Lawrenceville, IL

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Weather in August

The last month of the summer, August, is also a moderately hot month in Lawrenceville, Illinois, with temperature in the range of an average high of 82.9°F (28.3°C) and an average low of 65.7°F (18.7°C).

Temperature

As Lawrenceville welcomes August, the average high-temperature is noted at a still warm 82.9°F (28.3°C), closely aligning with the preceding month. Throughout August, the average low-temperature dips to a comfortable 65.7°F (18.7°C).

Heat index

August's mean heat index is evaluated at a hot 91.4°F (33°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are particularly important for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.

Humidity

The average relative humidity in August is 79%.

Rainfall

In Lawrenceville, in August, during 13.5 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. In Lawrenceville, during the entire year, the rain falls for 160.3 days and collects up to 34.33" (872mm) of precipitation.

Snowfall

In Lawrenceville, snow does not fall in May through October.

Daylight

In August, the average length of the day in Lawrenceville is 13h and 38min.
On the first day of the month, sunrise is at 5:52 am and sunset at 8:01 pm. On the last day of August, in Lawrenceville, sunrise is at 6:19 am and sunset at 7:21 pm CDT.

Sunshine

The average sunshine in August is 10.4h.

UV index

June through August, 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 threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index, 6 in August, converts into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Updated: Jul 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

An average high-temperature, in August, in Lawrenceville, is 82.9°F (28.3°C) and the average low-temperature is 65.7°F (18.7°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is evaluated at 91.4°F (33°C).

What is the average humidity in August?

The average relative humidity in August is 79%.

How many days does it rain in August?

In August, the rain falls for 13.5 days. Throughout August, 2.36" (60mm) of precipitation is accumulated.

When it does not snow?

In Lawrenceville, Illinois, snow does not fall in May through October.

How many hours of daylight does Lawrenceville have in August?

The average day length in August is 13h and 38min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:52 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 7:21 pm CDT.

How many hours of sunshine does Lawrenceville have in August?

The average sunshine duration in August in Lawrenceville is 10.4h.

When is the highest UV index?

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

What is the UV index intensity in August?

In August, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk 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 August
Lawrenceville, IL

Average temperature in August - Lawrenceville, IL
  • Average high temperature in August: 82.9°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in August: 65.7°F

The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).

Average pressure in August
Lawrenceville, IL

Average pressure in August - Lawrenceville, IL
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in August
Lawrenceville, IL

Average wind speed in August - Lawrenceville, IL
  • Average wind speed in August: 5.9mph

The windiest month (with the highest average wind speed) is February (10.1mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).

Average humidity in August
Lawrenceville, IL

Average humidity in August - Lawrenceville, IL
  • Average humidity in August: 79%

The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (70%).

Average rainfall in August
Lawrenceville, IL

Average rainfall in August - Lawrenceville, IL
  • Average rainfall in August: 2.36"

The wettest month (with the highest rainfall) is April (4.69").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in August
Lawrenceville, IL

Average rainfall days in August - Lawrenceville, IL
  • Average rainfall days in August: 13.5 days

The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is February (9.4 days).

Average snowfall in August
Lawrenceville, IL

Average snowfall in August - Lawrenceville, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Lawrenceville, IL

Average snowfall days in August - Lawrenceville, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Lawrenceville, IL

Average daylight in August / Average sunshine in August - Lawrenceville, IL
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in August
Lawrenceville, IL

Average sunshine days in August - Lawrenceville, IL
  • Average sunshine days in August: 15.1 days

The month with the most sunshine days is October (18 days).
The month with the least sunshine days is May (9.4 days).

Average UV index in August
Lawrenceville, IL

Average UV index in August - Lawrenceville, IL
  • Average UV index in August: 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 August
Lawrenceville, IL

Average cloud cover in August - Lawrenceville, IL
  • Average cloud cover in August: 27

The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in August
Lawrenceville, IL

Average visibility in August - Lawrenceville, IL
  • Average visibility in August: 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).

Lawrenceville, Illinois, USA

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