August weather forecast
Alto Pass, IL

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Weather in August

August, the last month of the summer in Alto Pass, is another hot month, with an average temperature fluctuating between 86.5°F (30.3°C) and 66.7°F (19.3°C).

Temperature

Alto Pass registers an average high-temperature of a still hot 86.5°F (30.3°C) at the commencement of August, closely related to the preceding month. In August, Alto Pass experiences a temperature dip to an average of 66.7°F (19.3°C) at night.

Heat index

For most parts of August, the heat index is appraised at a very hot 98.6°F (37°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. 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 extremely vital to babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in August in Alto Pass is 76%.

Rainfall

In Alto Pass, during August, the rain falls for 14.8 days and regularly aggregates up to 2.44" (62mm) of precipitation. Throughout the year, there are 143 rainfall days, and 27.44" (697mm) of precipitation is accumulated.

Snowfall

In Alto Pass, snow does not fall in May through September.

Daylight

In August, the average length of the day is 13h and 34min.
On the first day of August in Alto Pass, sunrise is at 6:01 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:27 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 reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.
Note: An average UV index of 6 in August transforms into this advice:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
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Frequently asked questions

How hot does it get in Alto Pass in August?

In August, in Alto Pass, the average high-temperature is 86.5°F (30.3°C), and the average low-temperature is 66.7°F (19.3°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is appraised at 98.6°F (37°C).

What is the average humidity in August in Alto Pass?

In Alto Pass, Illinois, the average relative humidity in August is 76%.

How much does it rain in Alto Pass in August?

In Alto Pass, Illinois, in August, it is raining for 14.8 days, with typically 2.44" (62mm) of accumulated precipitation.

When it does not snow in Alto Pass?

In Alto Pass, Illinois, snow does not fall in May through September.

What is the average length of the day in August in Alto Pass?

In August, the average day length in Alto Pass is 13h and 34min.

What time are sunrise and sunset in August in Alto Pass?

On the first day of August in Alto Pass, Illinois, sunrise is at 6:01 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:27 pm CDT.

How many hours of sunshine does Alto Pass have in August?

In August, the average sunshine duration is 10.2h.

What are the months with the highest UV index in Alto Pass?

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

What is the UV index reading in August in Alto Pass?

In August, the average daily maximum UV index is 6. A UV Index 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
Alto Pass, IL

Average temperature in August - Alto Pass, IL
  • Average high temperature in August: 86.5°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in August: 66.7°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

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Average pressure in August
Alto Pass, IL

Average pressure in August - Alto Pass, 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 (29.94"Hg).

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Average wind speed in August
Alto Pass, IL

Average wind speed in August - Alto Pass, IL
  • Average wind speed in August: 5.6mph

The windiest month (with the highest average wind speed) is January (9mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in August
Alto Pass, IL

Average humidity in August - Alto Pass, IL
  • Average humidity in August: 76%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in August
Alto Pass, IL

Average rainfall in August - Alto Pass, IL
  • Average rainfall in August: 2.44"

The wettest month (with the highest rainfall) is April (3.31").
The driest month (with the least rainfall) is September (1.3").

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Average rainfall days in August
Alto Pass, IL

Average rainfall days in August - Alto Pass, IL
  • Average rainfall days in August: 14.8 days

The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is January (8.4 days).

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Average snowfall in August
Alto Pass, IL

Average snowfall in August - Alto Pass, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.89").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Alto Pass, IL

Average snowfall days in August - Alto Pass, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Alto Pass, IL

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

The month with the longest days is June (Average daylight: 14h and 42min).
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 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

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Average sunshine days in August
Alto Pass, IL

Average sunshine days in August - Alto Pass, IL
  • Average sunshine days in August: 13.8 days

The month with the most sunshine days is October (21 days).
The month with the least sunshine days is July (12.8 days).

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Average UV index in August
Alto Pass, IL

Average UV index in August - Alto Pass, 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 and December (UV index 2).

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Average cloud cover in August
Alto Pass, IL

Average cloud cover in August - Alto Pass, IL
  • Average cloud cover in August: 29

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).

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Average visibility in August
Alto Pass, IL

Average visibility in August - Alto Pass, 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).

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Alto Pass, Illinois, USA

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