August weather forecast
Gilson, IL

Share

Weather in August

August, the last month of the summer in Gilson, is another warm month, with an average temperature varying between 81.1°F (27.3°C) and 63.3°F (17.4°C).

Temperature

The commencement of August brings an average high-temperature of a still moderately hot 81.1°F (27.3°C), marking an inconsequential divergence from July. The average low-temperature of 63.3°F (17.4°C) is witnessed in Gilson during August.

Heat index

The average heat index in August is evaluated at a tropical 87.8°F (31°C). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.

Humidity

In Gilson, Illinois, the average relative humidity in August is 81%.

Rainfall

In Gilson, in August, during 12.1 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. Throughout the year, there are 126 rainfall days, and 14.45" (367mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In August, the average length of the day in Gilson, Illinois, is 13h and 45min.
On the first day of the month, sunrise is at 5:57 am and sunset at 8:16 pm. On the last day of August, in Gilson, sunrise is at 6:27 am and sunset at 7:34 pm CDT.

Sunshine

In August, the average sunshine is 9.9h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: A maximum high UV index of 6 in August translates into the following recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature in Gilson?

August temperatures in Gilson vary between a high-temperature of 81.1°F (27.3°C) and a low-temperature of 63.3°F (17.4°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 87.8°F (31°C).

What is the average humidity in August in Gilson?

The average relative humidity in August in Gilson, Illinois, is 81%.

How many days does it rain in August in Gilson?

In August, in Gilson, Illinois, the rain falls for 12.1 days. Throughout August, 1.18" (30mm) of precipitation is accumulated.

When it does not snow in Gilson?

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

What is the average length of the day in August in Gilson?

In Gilson, Illinois, the average day length in August is 13h and 45min.

When are sunrise and sunset in August in Gilson?

On the first day of August, sunrise is at 5:57 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:34 pm CDT.

How many hours of sunshine does Gilson have in August?

In Gilson, the average sunshine duration in August is 9.9h.

What are the months with the highest UV index in Gilson?

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

How high is the UV index in August in Gilson?

The average daily maximum UV index in August in Gilson, Illinois, is 6. A UV Index of 6 to 7 symbolizes a high health risk 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 August
Gilson, IL

Average temperature in August - Gilson, IL
  • Average high temperature in August: 81.1°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in August: 63.3°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 (17.8°F).

Average pressure in August
Gilson, IL

Average pressure in August - Gilson, IL
  • Average pressure in August: 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 August
Gilson, IL

Average wind speed in August - Gilson, IL
  • Average wind speed in August: 6.6mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in August
Gilson, IL

Average humidity in August - Gilson, IL
  • Average humidity in August: 81%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

Average rainfall in August
Gilson, IL

Average rainfall in August - Gilson, IL
  • Average rainfall in August: 1.18"

The wettest month (with the highest rainfall) is May (2.2").
The driest months (with the least rainfall) are January and December (0.59").

Average rainfall days in August
Gilson, IL

Average rainfall days in August - Gilson, IL
  • Average rainfall days in August: 12.1 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (4.4 days).

Average snowfall in August
Gilson, IL

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

The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Gilson, IL

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

The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Gilson, IL
  • Average daylight in August: 13h 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 August: 9h and 5min

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 6min).

Average sunshine days in August
Gilson, IL

Average sunshine days in August - Gilson, IL
  • Average sunshine days in August: 14.8 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.2 days).

Average UV index in August
Gilson, IL

Average UV index in August - Gilson, 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
Gilson, IL

Average cloud cover in August - Gilson, IL
  • Average cloud cover in August: 30

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 August
Gilson, IL

Average visibility in August - Gilson, IL
  • Average visibility in August: 6mi

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).

Gilson, Illinois, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location