August weather forecast
Earlham, IA

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Weather in August

The last month of the summer, August, is also a moderately hot month in Earlham, Iowa, with temperature in the range of an average low of 62.2°F (16.8°C) and an average high of 81.1°F (27.3°C).

Temperature

The average high-temperature during August registers at a still warm 81.1°F (27.3°C), closely corresponding to the preceding month. In August, Earlham records an average nighttime temperature of 62.2°F (16.8°C).

Heat index

The heat index in August is estimated at a tropical 86°F (30°C). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.
When assessing, remember that heat index measurements are for light winds and shaded spots. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.

Humidity

In August, the average relative humidity is 79%.

Rainfall

In Earlham, in August, during 12.1 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. In Earlham, during the entire year, the rain falls for 112.7 days and collects up to 16.06" (408mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In August, the average length of the day is 13h and 47min.
On the first day of the month, sunrise is at 6:12 am and sunset at 8:33 pm. On the last day of August, sunrise is at 6:42 am and sunset at 7:50 pm CDT.

Sunshine

In August, the average sunshine is 9.8h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In August, a regular UV index of 6 translates into these guidelines:
Shield from overexposure. Defense against sun-related harm is required. 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. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Updated: Jun 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures?

During August, Earlham experiences an average high-temperature of 81.1°F (27.3°C) and a low-temperature of 62.2°F (16.8°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is estimated at 86°F (30°C).

What is the average humidity in August?

In August, the average relative humidity is 79%.

How much does it rain in August?

In August, the rain falls for 12.1 days. Throughout August, 1.89" (48mm) of precipitation is accumulated.

When it does not snow?

In Earlham, snow does not fall in June through September.

What is the average length of the day in August?

In Earlham, the average day length in August is 13h and 47min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:12 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 7:50 pm CDT.

How long on average sun shines in August?

The average sunshine duration in August is 9.8h.

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

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

How high is the UV index in August?

In Earlham, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability 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
Earlham, IA

Average temperature in August - Earlham, IA
  • Average high temperature in August: 81.1°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in August: 62.2°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).

Average pressure in August
Earlham, IA

Average pressure in August - Earlham, IA
  • Average pressure in August: 29.96"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in August
Earlham, IA

Average wind speed in August - Earlham, IA
  • Average wind speed in August: 7mph

The windiest months (with the highest average wind speed) are January and April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

Average humidity in August
Earlham, IA

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

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (70%).

Average rainfall in August
Earlham, IA

Average rainfall in August - Earlham, IA
  • Average rainfall in August: 1.89"

The wettest month (with the highest rainfall) is June (2.68").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in August
Earlham, IA

Average rainfall days in August - Earlham, IA
  • Average rainfall days in August: 12.1 days

The month with the highest number of rainy days is June (15.7 days).
The month with the least rainy days is February (2.8 days).

Average snowfall in August
Earlham, IA

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

The month with the highest snowfall is February (2.09").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Earlham, IA

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

The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Earlham, IA

Average daylight in August / Average sunshine in August - Earlham, 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 12min).

  • Average sunshine in August: 9h and 5min

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

Average sunshine days in August
Earlham, IA

Average sunshine days in August - Earlham, IA
  • Average sunshine days in August: 15.8 days

The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is June (11.9 days).

Average UV index in August
Earlham, IA

Average UV index in August - Earlham, IA
  • Average UV index in August: 6

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in August
Earlham, IA

Average cloud cover in August - Earlham, IA
  • Average cloud cover in August: 31

The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 29).

Average visibility in August
Earlham, IA

Average visibility in August - Earlham, IA
  • Average visibility in August: 5mi

The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).

Earlham, Iowa, USA

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