August weather forecast
Pontoosuc, IL

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Weather in August

The last month of the summer, August, is another warm month in Pontoosuc, Illinois, with temperature in the range of an average low of 63.9°F (17.7°C) and an average high of 82.2°F (27.9°C).

Temperature

Pontoosuc records a slight change with August's average high-temperatures adjusting to a still warm 82.2°F (27.9°C) from July's 82.9°F (28.3°C). Pontoosuc usually reports an average low-temperature of 63.9°F (17.7°C) during the month of August.

Heat index

The heat index in August is computed to be a hot 89.6°F (32°C). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.
When referencing the heat index, its values are suitable for shady environments and light breezes. 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 'felt air temperature' or 'feels like', is a value derived by merging air temperature with the humidity to convey how the climate feels. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.

Humidity

In August, the average relative humidity in Pontoosuc is 78%.

Rainfall

In Pontoosuc, in August, during 9.8 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. Throughout the year, there are 101.8 rainfall days, and 9.92" (252mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Pontoosuc.

Daylight

In August, the average length of the day is 13h and 44min.
On the first day of the month, sunrise is at 6:02 am and sunset at 8:19 pm. On the last day of August, sunrise is at 6:31 am and sunset at 7:38 pm CDT.

Sunshine

In August, the average sunshine in Pontoosuc is 10.1h.

UV index

The months with the highest UV index in Pontoosuc are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high daily UV index of 6 during August translates into the following directions:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
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Frequently asked questions

What is the average August temperature in Pontoosuc?

In August, in Pontoosuc, the average high-temperature is 82.2°F (27.9°C), and the average low-temperature is 63.9°F (17.7°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is computed to be 89.6°F (32°C).

What is the average humidity in August in Pontoosuc?

In August, the average relative humidity is 78%.

How many days does it rain in August in Pontoosuc?

In August, in Pontoosuc, Illinois, the rain falls for 9.8 days. Throughout August, 0.83" (21mm) of precipitation is accumulated.

When it does not snow in Pontoosuc?

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

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

In Pontoosuc, the average day length in August is 13h and 44min.

When is the sunrise / sunset in August in Pontoosuc?

In August, on the first day of the month, sunrise is at 6:02 am and sunset at 8:19 pm. On the last day of the month, in Pontoosuc, sunrise is at 6:31 am and sunset at 7:38 pm CDT.

How many hours of sunshine does Pontoosuc have in August?

The average sunshine duration in August is 10.1h.

What is the month with the highest UV index in Pontoosuc?

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

How high is the UV index in August in Pontoosuc?

In August, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health threat 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
Pontoosuc, IL

Average temperature in August - Pontoosuc, IL
  • Average high temperature in August: 82.2°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (30.4°F).

  • Average low temperature in August: 63.9°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

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Average pressure in August
Pontoosuc, IL

Average pressure in August - Pontoosuc, IL
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in August
Pontoosuc, IL

Average wind speed in August - Pontoosuc, IL
  • Average wind speed in August: 6.7mph

The windiest months (with the highest average wind speed) are January, February, March and April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).

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Average humidity in August
Pontoosuc, IL

Average humidity in August - Pontoosuc, IL
  • Average humidity in August: 78%

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in August
Pontoosuc, IL

Average rainfall in August - Pontoosuc, IL
  • Average rainfall in August: 0.83"

The wettest month (with the highest rainfall) is May (1.46").
The driest months (with the least rainfall) are January and December (0.47").

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Average rainfall days in August
Pontoosuc, IL

Average rainfall days in August - Pontoosuc, IL
  • Average rainfall days in August: 9.8 days

The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is February (3.5 days).

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Average snowfall in August
Pontoosuc, IL

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

The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Pontoosuc, IL

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

The month with the highest number of snowfall days is January (7.7 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
Pontoosuc, IL

Average daylight in August / Average sunshine in August - Pontoosuc, 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

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Average sunshine days in August
Pontoosuc, IL

Average sunshine days in August - Pontoosuc, IL
  • Average sunshine days in August: 17.6 days

The month with the most sunshine days is December (22.9 days).
The month with the least sunshine days is May (14 days).

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Average UV index in August
Pontoosuc, IL

Average UV index in August - Pontoosuc, 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).

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Average cloud cover in August
Pontoosuc, IL

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

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July, August and September (Cloud cover 28).

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Average visibility in August
Pontoosuc, IL

Average visibility in August - Pontoosuc, 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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Pontoosuc, Illinois, USA

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