August weather forecast
Tamms, IL

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Weather in August

August, the last month of the summer in Tamms, is another hot month, with an average temperature fluctuating between 67.5°F (19.7°C) and 86.4°F (30.2°C).

Temperature

Stepping into August, Tamms records an average high-temperature of a still tropical 86.4°F (30.2°C), almost consistent with July. In Tamms, August nights cool down to an average of 67.5°F (19.7°C).

Heat index

August's heat index is estimated at a very hot 98.6°F (37°C). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Heat index specifics point out values are for conditions of shade and a slight breeze. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In August, the average relative humidity is 76%.

Rainfall

In Tamms, in August, during 13.6 rainfall days, 2.72" (69mm) of precipitation is typically accumulated. Throughout the year, in Tamms, there are 156.3 rainfall days, and 36.65" (931mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in August is 13h and 33min.
On the first day of the month, sunrise is at 6:02 am and sunset at 8:04 pm. On the last day of August, sunrise is at 6:27 am and sunset at 7:26 pm CDT.

Sunshine

The average sunshine in August is 10.4h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Tamms. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 6 in August, converts into the following recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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Frequently asked questions

How hot does it get in Tamms in August?

Tamms in August has an average high-temperature of 86.4°F (30.2°C) and an average low-temperature of 67.5°F (19.7°C). The average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, in August is estimated at 98.6°F (37°C).

What is the average humidity in August in Tamms?

In Tamms, the average relative humidity in August is 76%.

How much does it rain in Tamms in August?

In Tamms, Illinois, in August, it is raining for 13.6 days, with typically 2.72" (69mm) of accumulated precipitation.

When it does not snow in Tamms?

May through September are months without snowfall in Tamms.

How many hours of daylight does Tamms have in August?

In August, the average day length in Tamms is 13h and 33min.

What time are sunrise and sunset in August in Tamms?

On the first day of August in Tamms, sunrise is at 6:02 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:26 pm CDT.

How long on average sun shines in August in Tamms?

In August, the average sunshine duration in Tamms, Illinois, is 10.4h.

What are the months with the highest UV index in Tamms?

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

How high is the UV index in August in Tamms?

In August, the average daily maximum UV index in Tamms is 6. A UV Index of 6 to 7 symbolizes a high health threat 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
Tamms, IL

Average temperature in August - Tamms, IL
  • Average high temperature in August: 86.4°F

The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (41.2°F).

  • Average low temperature in August: 67.5°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

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Average pressure in August
Tamms, IL

Average pressure in August - Tamms, 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
Tamms, IL

Average wind speed in August - Tamms, IL
  • Average wind speed in August: 5.7mph

The windiest months (with the highest average wind speed) are January, February and March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity in August
Tamms, IL

Average humidity in August - Tamms, IL
  • Average humidity in August: 76%

The months with the highest relative humidity are February, March, May and December (78%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in August
Tamms, IL

Average rainfall in August - Tamms, IL
  • Average rainfall in August: 2.72"

The wettest month (with the highest rainfall) is April (4.21").
The driest month (with the least rainfall) is September (1.42").

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Average rainfall days in August
Tamms, IL

Average rainfall days in August - Tamms, IL
  • Average rainfall days in August: 13.6 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.8 days).

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Average snowfall in August
Tamms, IL

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

The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Tamms, IL

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

The month with the highest number of snowfall days is February (3.8 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
Tamms, IL

Average daylight in August / Average sunshine in August - Tamms, IL
  • Average daylight in August: 13h and 3min

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 42min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in August
Tamms, IL

Average sunshine days in August - Tamms, IL
  • Average sunshine days in August: 15.1 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (12.3 days).

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Average UV index in August
Tamms, IL

Average UV index in August - Tamms, 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
Tamms, IL

Average cloud cover in August - Tamms, IL
  • Average cloud cover in August: 27

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 26).

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Average visibility in August
Tamms, IL

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

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