August weather forecast
Peoria Heights, IL

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Weather in August

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

Temperature

August's advent denotes a minor fluctuation in the average high-temperature to a still moderately hot 81.1°F (27.3°C) from July's 82°F (27.8°C). Throughout the nights in August, an average low-temperature of 63.3°F (17.4°C) is noted.

Heat index

In August, the average heat index is evaluated at a hot 87.8°F (31°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.
It is important to note that the heat index values are for shaded areas and light wind scenarios. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.

Humidity

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

Rainfall

In August, the rain falls for 12.3 days. Throughout August, 1.3" (33mm) of precipitation is accumulated. In Peoria Heights, during the entire year, the rain falls for 129.2 days and collects up to 17.24" (438mm) of precipitation.

Snowfall

In Peoria Heights, snow does not fall in May through September.

Daylight

In August, the average length of the day is 13h and 45min.
On the first day of the month, sunrise is at 5:55 am and sunset at 8:13 pm. On the last day of August, sunrise is at 6:25 am and sunset at 7:31 pm CDT.

Sunshine

The average sunshine in August is 10h.

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 average individuals.
Note: The daily high UV index of 6 during August translates into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.

Frequently asked questions

What are the temperatures in Peoria Heights in August?

The high-temperature, in August, in Peoria Heights, records 81.1°F (27.3°C), while the low-temperature is 63.3°F (17.4°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, is evaluated at 87.8°F (31°C).

What is the average humidity in August?

The average relative humidity in August is 81%.

How much does it rain in August?

In August, in Peoria Heights, the rain falls for 12.3 days. Throughout August, 1.3" (33mm) of precipitation is accumulated.

When it does not snow?

May through September are months without snowfall.

What is the average length of the day in August?

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

What time are sunrise and sunset in August?

On the first day of August, sunrise is at 5:55 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:31 pm CDT.

How many hours of sunshine does Peoria Heights have in August?

The average sunshine duration in August in Peoria Heights is 10h.

What are the months with 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 reading in August?

In Peoria Heights, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health 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
Peoria Heights, IL

Average temperature in August - Peoria Heights, 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 (30.7°F).

  • Average low temperature in August: 63.3°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in August
Peoria Heights, IL

Average pressure in August - Peoria Heights, 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
Peoria Heights, IL

Average wind speed in August - Peoria Heights, IL
  • Average wind speed in August: 6.5mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in August
Peoria Heights, IL

Average humidity in August - Peoria Heights, 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 (71%).

Average rainfall in August
Peoria Heights, IL

Average rainfall in August - Peoria Heights, IL
  • Average rainfall in August: 1.3"

The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is January (0.75").

Average rainfall days in August
Peoria Heights, IL

Average rainfall days in August - Peoria Heights, IL
  • Average rainfall days in August: 12.3 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (4.6 days).

Average snowfall in August
Peoria Heights, IL

Average snowfall in August - Peoria Heights, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (2.36").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Peoria Heights, IL

Average snowfall days in August - Peoria Heights, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (9 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
Peoria Heights, IL

Average daylight in August / Average sunshine in August - Peoria Heights, IL
  • Average daylight in August: 13h 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 18min).

  • Average sunshine in August: 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 August
Peoria Heights, IL

Average sunshine days in August - Peoria Heights, IL
  • Average sunshine days in August: 16.4 days

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in August
Peoria Heights, IL

Average UV index in August - Peoria Heights, 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
Peoria Heights, IL

Average cloud cover in August - Peoria Heights, 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
Peoria Heights, IL

Average visibility in August - Peoria Heights, 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).

Peoria Heights, Illinois, USA

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