August weather forecast
Henley, MO

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Weather in August

August, the last month of the summer in Henley, is another tropical month, with temperature in the range of an average low of 65.7°F (18.7°C) and an average high of 87.1°F (30.6°C).

Temperature

The shift from July to August is characterized by an average high-temperature of a still hot 87.1°F (30.6°C), not significantly different from the 88.9°F (31.6°C) of July. An average low-temperature of 65.7°F (18.7°C) is common during the nights of August.

Heat index

The heat index in August is estimated at a sweltering 98.6°F (37°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

The months with the lowest humidity in Henley are August and October, with an average relative humidity of 73%.

Rainfall

In Henley, in August, during 13.4 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. Throughout the year, in Henley, there are 136.8 rainfall days, and 26.18" (665mm) of precipitation is accumulated.

Snowfall

In Henley, snow does not fall in June through October.

Daylight

The average length of the day in August in Henley, Missouri, is 13h and 37min.
On the first day of August, sunrise is at 6:12 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 7:40 pm CDT.

Sunshine

The average sunshine in August in Henley is 10.2h.

UV index

The months with the highest UV index in Henley are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.
Note: In August, the average maximum UV index of 6 translates into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
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Frequently asked questions

Is it hot in Henley during August?

In August, in Henley, the average high-temperature is 87.1°F (30.6°C), and the average low-temperature is 65.7°F (18.7°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is estimated at 98.6°F (37°C).

What are the least humid months in Henley?

The months with the lowest humidity in Henley, Missouri, are August and October, with an average relative humidity of 73%.

What is the average humidity in August in Henley?

In August, the average relative humidity in Henley is 73%.

How much does it rain in Henley in August?

In Henley, during August, the rain falls for 13.4 days and regularly aggregates up to 2.28" (58mm) of precipitation.

When it does not snow in Henley?

In Henley, Missouri, snow does not fall in June through October.

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

In August, the average day length is 13h and 37min.

When is the sunrise / sunset in August in Henley?

On the first day of August, sunrise is at 6:12 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 7:40 pm CDT.

How many hours of sunshine does Henley have in August?

The average sunshine duration in August in Henley, Missouri, is 10.2h.

When is the highest UV index in Henley?

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

How high is the UV index in August in Henley?

In Henley, 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
Henley, MO

Average temperature in August - Henley, MO
  • Average high temperature in August: 87.1°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in August: 65.7°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in August
Henley, MO

Average pressure in August - Henley, MO
  • 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 (29.92"Hg).

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Average wind speed in August
Henley, MO

Average wind speed in August - Henley, MO
  • Average wind speed in August: 5.9mph

The windiest months (with the highest average wind speed) are January and March (8.9mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).

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Average humidity in August
Henley, MO

Average humidity in August - Henley, MO
  • Average humidity in August: 73%

The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are August and October (73%).

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Average rainfall in August
Henley, MO

Average rainfall in August - Henley, MO
  • Average rainfall in August: 2.28"

The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is January (1.18").

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Average rainfall days in August
Henley, MO

Average rainfall days in August - Henley, MO
  • Average rainfall days in August: 13.4 days

The month with the highest number of rainy days is May (16.3 days).
The months with the least rainy days are January and December (6.7 days).

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Average snowfall in August
Henley, MO

Average snowfall in August - Henley, MO
  • Average snowfall in August: 0"

The month with the highest snowfall is February (2.8").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in August
Henley, MO

Average snowfall days in August - Henley, MO
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Henley, MO

Average daylight in August / Average sunshine in August - Henley, MO
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 54min).

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Average sunshine days in August
Henley, MO

Average sunshine days in August - Henley, MO
  • Average sunshine days in August: 14.7 days

The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is May (11.8 days).

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Average UV index in August
Henley, MO

Average UV index in August - Henley, MO
  • 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
Henley, MO

Average cloud cover in August - Henley, MO
  • Average cloud cover in August: 28

The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in August
Henley, MO

Average visibility in August - Henley, MO
  • 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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Henley, Missouri, USA

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