August weather forecast
Clear Lake, IA

Weather in August

August, the last month of the summer in Clear Lake, is also a moderately hot month, with an average temperature varying between 77.4°F (25.2°C) and 60.3°F (15.7°C).

Temperature

In Clear Lake, Iowa, the average high-temperature in August is almost the same as in July - a still warm 77.4°F (25.2°C). In August, the average low-temperature is 60.3°F (15.7°C).

Humidity

In August, the average relative humidity is 82%.

Rainfall

In August, in Clear Lake, Iowa, the rain falls for 15.8 days. Throughout August, 2.8" (71mm) of precipitation is accumulated. In Clear Lake, Iowa, during the entire year, the rain falls for 145.9 days and collects up to 28.82" (732mm) of precipitation.

Snowfall

In Clear Lake, snow does not fall in June through September.

Daylight

In Clear Lake, the average length of the day in August is 13h and 53min.
On the first day of August, sunrise is at 6:04 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:50 pm CDT.

Sunshine

In Clear Lake, the average sunshine in August is 9.7h.

UV index

In August, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In August, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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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FAQ

What is the temperature in August in Clear Lake?

In August, in Clear Lake, Iowa, the average high-temperature is 77.4°F (25.2°C), and the average low-temperature is 60.3°F (15.7°C).

What is the average humidity in August in Clear Lake?

The average relative humidity in August in Clear Lake, Iowa, is 82%.

How much does it rain in Clear Lake in August?

In Clear Lake, Iowa, in August, it is raining for 15.8 days, with typically 2.8" (71mm) of accumulated precipitation.

When it does not snow in Clear Lake?

In Clear Lake, snow does not fall in June through September.

What is the average length of the day in August in Clear Lake?

In Clear Lake, the average day length in August is 13h and 53min.

When are sunrise and sunset in August in Clear Lake?

In August, on the first day of the month, sunrise is at 6:04 am and sunset at 8:35 pm. On the last day of the month, in Clear Lake, Iowa, sunrise is at 6:36 am and sunset at 7:50 pm CDT.

How long on average sun shines in August in Clear Lake?

In August, the average sunshine duration in Clear Lake is 9.7h.

What is the UV index intensity in August in Clear Lake?

In August, the average daily maximum UV index in Clear Lake, Iowa, is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Clear Lake, IA

Average temperature in August - Clear Lake, IA
  • Average high temperature in August: 77.4°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.3°F).

  • Average low temperature in August: 60.3°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

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Average pressure in August
Clear Lake, IA

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in August
Clear Lake, IA

Average wind speed in August - Clear Lake, IA
  • Average wind speed in August: 7.3mph

The windiest months (with the highest average wind speed) are January and April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).

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Average humidity in August
Clear Lake, IA

Average humidity in August - Clear Lake, IA
  • Average humidity in August: 82%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in August
Clear Lake, IA

Average rainfall in August - Clear Lake, IA
  • Average rainfall in August: 2.8"

The wettest month (with the highest rainfall) is June (4.65").
The driest month (with the least rainfall) is January (1.06").

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Average rainfall days in August
Clear Lake, IA

Average rainfall days in August - Clear Lake, IA
  • Average rainfall days in August: 15.8 days

The month with the highest number of rainy days is June (19.8 days).
The month with the least rainy days is February (3.8 days).

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Average snowfall in August
Clear Lake, IA

Average snowfall in August - Clear Lake, IA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (7.48").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Clear Lake, IA

Average snowfall days in August - Clear Lake, IA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (14.6 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
Clear Lake, IA

Average daylight in August / Average sunshine in August - Clear Lake, IA
  • Average daylight in August: 13h and 53min

The month with the longest days is June (Average daylight: 15h and 19min).
The month with the shortest days is December (Average daylight: 9h and 3min).

  • Average sunshine in August: 9h and 42min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in August
Clear Lake, IA

Average sunshine days in August - Clear Lake, IA
  • Average sunshine days in August: 13 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (8 days).

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Average UV index in August
Clear Lake, IA

Average UV index in August - Clear Lake, IA
  • Average UV index in August: 5

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

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Average cloud cover in August
Clear Lake, IA

Average cloud cover in August - Clear Lake, IA
  • Average cloud cover in August: 32

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in August
Clear Lake, IA

Average visibility in August - Clear Lake, IA
  • Average visibility in August: 6mi

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

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