August weather forecast
Henshaw, IA

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Weather in August

The last month of the summer, August, is also a moderately hot month in Henshaw, Iowa, with an average temperature varying between 82.2°F (27.9°C) and 63.7°F (17.6°C).

Temperature

The onset of August brings an average high-temperature of a still moderately hot 82.2°F (27.9°C), nearly matching the July temperature. Henshaw observes an average nighttime temperature of 63.7°F (17.6°C) during August.

Heat index

In August, the heat index is evaluated at a tropical 89.6°F (32°C). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.
In terms of the heat index, values are set with light wind and shade conditions in mind. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', gives an indication of how one might feel in terms of heat after considering humidity. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.

Humidity

In August, the average relative humidity is 79%.

Rainfall

In August, the rain falls for 12.6 days. Throughout August, 2.13" (54mm) of precipitation is accumulated. Throughout the year, there are 114.9 rainfall days, and 18.39" (467mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Henshaw.

Daylight

In Henshaw, the average length of the day in August is 13h and 45min.
On the first day of the month, sunrise is at 6:16 am and sunset at 8:35 pm. On the last day of August, sunrise is at 6:46 am and sunset at 7:53 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 value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 6 during August translates into the following directions:
Fend off overexposure. Sun protection is vital. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Frequently asked questions

What are the temperatures in Henshaw in August?

In August, the average high-temperature and low-temperature in Henshaw, Iowa, are 82.2°F (27.9°C) and 63.7°F (17.6°C) respectively. In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is evaluated at 89.6°F (32°C).

What is the average humidity in August in Henshaw?

In August, the average relative humidity is 79%.

How much does it rain in Henshaw in August?

In Henshaw, in August, during 12.6 rainfall days, 2.13" (54mm) of precipitation is typically accumulated.

When it does not snow in Henshaw?

May through September are months without snowfall in Henshaw, Iowa.

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

In Henshaw, the average day length in August is 13h and 45min.

What time are sunrise and sunset in August in Henshaw?

In August, on the first day of the month, sunrise is at 6:16 am and sunset at 8:35 pm. On the last day of the month, in Henshaw, Iowa, sunrise is at 6:46 am and sunset at 7:53 pm CDT.

How many hours of sunshine does Henshaw have in August?

The average sunshine duration in August in Henshaw is 10h.

When is the highest UV index in Henshaw?

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

How high is the UV index in August in Henshaw?

The average daily maximum UV index in August in Henshaw is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to Sun's UV rays.
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
Henshaw, IA

Average temperature in August - Henshaw, IA
  • Average high temperature in August: 82.2°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (31.1°F).

  • Average low temperature in August: 63.7°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).

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Average pressure in August
Henshaw, IA

Average pressure in August - Henshaw, IA
  • Average pressure in August: 29.95"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in August
Henshaw, IA

Average wind speed in August - Henshaw, IA
  • Average wind speed in August: 6.8mph

The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

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Average humidity in August
Henshaw, IA

Average humidity in August - Henshaw, IA
  • Average humidity in August: 79%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in August
Henshaw, IA

Average rainfall in August - Henshaw, IA
  • Average rainfall in August: 2.13"

The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is February (0.43").

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Average rainfall days in August
Henshaw, IA

Average rainfall days in August - Henshaw, IA
  • Average rainfall days in August: 12.6 days

The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is February (3.4 days).

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Average snowfall in August
Henshaw, IA

Average snowfall in August - Henshaw, IA
  • Average snowfall in August: 0"

The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Henshaw, IA

Average snowfall days in August - Henshaw, IA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (7.8 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
Henshaw, IA

Average daylight in August / Average sunshine in August - Henshaw, IA
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 6min).
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 July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days in August
Henshaw, IA

Average sunshine days in August - Henshaw, IA
  • Average sunshine days in August: 15 days

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (12.3 days).

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Average UV index in August
Henshaw, IA

Average UV index in August - Henshaw, IA
  • 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
Henshaw, IA

Average cloud cover in August - Henshaw, IA
  • Average cloud cover in August: 29

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 27).

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Average visibility in August
Henshaw, IA

Average visibility in August - Henshaw, IA
  • 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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Henshaw, Iowa, USA

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