August weather forecast
Henshaw, IA

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Weather in August

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

Temperature

Henshaw's shift from July to August is accompanied by an average high-temperature of a still moderately hot 82.2°F (27.9°C), a slight deviation from 83.8°F (28.8°C). Henshaw usually reports an average low-temperature of 63.7°F (17.6°C) during the month of August.

Heat index

During August, the heat index is appraised at a tropical 89.6°F (32°C). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.
When referencing the heat index, its values are suitable for shady environments and light breezes. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.

Humidity

In August, the average relative humidity is 79%.

Rainfall

In Henshaw, in August, it is raining for 12.6 days, with typically 2.13" (54mm) of accumulated precipitation. In Henshaw, during the entire year, the rain falls for 114.9 days and collects up to 18.39" (467mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

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

In August, the average sunshine is 10h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In August, the maximum UV index of 6 suggests this advice:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Updated: Jul 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in August?

During August, Henshaw experiences an average high-temperature of 82.2°F (27.9°C) and a low-temperature of 63.7°F (17.6°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is appraised at 89.6°F (32°C).

What is the average humidity in August?

In Henshaw, the average relative humidity in August is 79%.

How many days does it rain 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, snow does not fall in May through September.

How many hours of daylight does Henshaw have in August?

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

When are sunrise and sunset in August?

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

How long on average sun shines in August in Henshaw?

In Henshaw, the average sunshine duration in August is 10h.

What are the months with the highest UV index?

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

What is the UV index intensity in August?

In August, the average daily maximum UV index is 6. A UV Index estimate 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
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Henshaw, Iowa, USA

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