August weather forecast
Nason, IL

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Weather in August

August, the last month of the summer in Nason, is also a moderately hot month, with an average temperature fluctuating between 66°F (18.9°C) and 85.3°F (29.6°C).

Temperature

The initiation of August sees an average high-temperature of a warm 85.3°F (29.6°C), showing minor variations from the previous month. The temperature lowers to an average of 66°F (18.9°C) during August nights.

Heat index

During August, the heat index is computed to be a sweltering 96.8°F (36°C). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values remain especially vital for 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.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

In Nason, the average relative humidity in August is 77%.

Rainfall

In Nason, in August, during 11.3 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. Throughout the year, in Nason, there are 122.7 rainfall days, and 18.03" (458mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Nason, the average length of the day in August is 13h and 36min.
On the first day of August, sunrise is at 5:59 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:26 pm CDT.

Sunshine

The average sunshine in August is 10.2h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 6 during August morphs into the following directions:
Resist extreme sun exposure. Guarding against solar damage is essential. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in August?

The high-temperature, in August, in Nason, is 85.3°F (29.6°C), while the low-temperature averages to 66°F (18.9°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, in August is computed to be 96.8°F (36°C).

What is the average humidity in August?

In Nason, the average relative humidity in August is 77%.

How much does it rain in August?

In Nason, Illinois, in August, during 11.3 rainfall days, 1.61" (41mm) of precipitation is typically accumulated.

When it does not snow?

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

How many hours of daylight does Nason have in August?

In Nason, the average day length in August is 13h and 36min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 5:59 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:26 pm CDT.

How long on average sun shines in August?

In Nason, the average sunshine duration in August is 10.2h.

What is the month with the highest UV index?

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

What is the UV index intensity in August in Nason?

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

Average temperature in August - Nason, IL
  • Average high temperature in August: 85.3°F

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in August: 66°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

Average pressure in August
Nason, IL

Average pressure in August - Nason, IL
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in August
Nason, IL

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

The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).

Average humidity in August
Nason, IL

Average humidity in August - Nason, IL
  • Average humidity in August: 77%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in August
Nason, IL

Average rainfall in August - Nason, IL
  • Average rainfall in August: 1.61"

The wettest month (with the highest rainfall) is April (2.56").
The driest month (with the least rainfall) is September (0.98").

Average rainfall days in August
Nason, IL

Average rainfall days in August - Nason, IL
  • Average rainfall days in August: 11.3 days

The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in August
Nason, IL

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

The month with the highest snowfall is January (0.71").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Nason, IL

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

The month with the highest number of snowfall days is January (4.5 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
Nason, IL

Average daylight in August / Average sunshine in August - Nason, 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 36min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in August
Nason, IL

Average sunshine days in August - Nason, IL
  • Average sunshine days in August: 16.7 days

The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is May (13.8 days).

Average UV index in August
Nason, IL

Average UV index in August - Nason, IL
  • Average UV index in August: 6

The months with the highest UV index are May, 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
Nason, IL

Average cloud cover in August - Nason, IL
  • Average cloud cover in August: 28

The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).

Average visibility in August
Nason, IL

Average visibility in August - Nason, 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).

Nason, Illinois, USA

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