August weather forecast
Elmwood, IL

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Weather in August

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

Temperature

With August's arrival, Elmwood notes an average high-temperature of a still warm 81.1°F (27.3°C), closely following the trend of the preceding month. Elmwood records an average nighttime low-temperature of 63.3°F (17.4°C) throughout August.

Heat index

The heat index value during August is computed to be a tropical 87.8°F (31°C). Staying active during long-term exposure might result in a state of exhaustion and cause heat cramps.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.

Humidity

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

Rainfall

In Elmwood, in August, it is raining for 13.7 days, with typically 1.89" (48mm) of accumulated precipitation. Throughout the year, there are 145.3 rainfall days, and 28.62" (727mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in August is 13h and 45min.
On the first day of August in Elmwood, sunrise is at 5:57 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:33 pm CDT.

Sunshine

The average sunshine in August is 9.9h.

UV index

In August, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: In August, the average maximum UV index of 5 translates into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. It's recommended to limit sun exposure when its radiation is at its peak during midday. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures?

The high-temperature during August is 81.1°F (27.3°C) and the low-temperature is 63.3°F (17.4°C). The average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is computed to be 87.8°F (31°C).

What is the average humidity in August?

In August, the average relative humidity is 81%.

How many days does it rain in August?

In August, the rain falls for 13.7 days. Throughout August, 1.89" (48mm) of precipitation is accumulated.

When it does not snow?

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

What is the average length of the day in August?

The average day length in August is 13h and 45min.

When are sunrise and sunset in August?

On the first day of August in Elmwood, sunrise is at 5:57 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:33 pm CDT.

How long on average sun shines in August?

In August, the average sunshine duration is 9.9h.

What is the UV index reading in August?

In Elmwood, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate 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 August
Elmwood, IL

Average temperature in August - Elmwood, 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 (30.4°F).

  • Average low temperature in August: 63.3°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

Average pressure in August
Elmwood, IL

Average pressure in August - Elmwood, 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
Elmwood, IL

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

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 (6.6mph).

Average humidity in August
Elmwood, IL

Average humidity in August - Elmwood, 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
Elmwood, IL

Average rainfall in August - Elmwood, IL
  • Average rainfall in August: 1.89"

The wettest month (with the highest rainfall) is May (4.29").
The driest months (with the least rainfall) are February and December (1.42").

Average rainfall days in August
Elmwood, IL

Average rainfall days in August - Elmwood, IL
  • Average rainfall days in August: 13.7 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (5.8 days).

Average snowfall in August
Elmwood, IL

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

The month with the highest snowfall is January (3.78").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Elmwood, IL

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

The month with the highest number of snowfall days is January (10.6 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
Elmwood, IL

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

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 month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in August
Elmwood, IL

Average sunshine days in August - Elmwood, IL
  • Average sunshine days in August: 15.5 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is June (11.3 days).

Average UV index in August
Elmwood, IL

Average UV index in August - Elmwood, IL
  • Average UV index in August: 5

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in August
Elmwood, IL

Average cloud cover in August - Elmwood, 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
Elmwood, IL

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

Elmwood, Illinois, USA

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