August weather forecast
Coster, IA

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Weather in August

The last month of the summer, August, is another warm month in Coster, Iowa, with an average temperature ranging between min 60.6°F (15.9°C) and max 78.4°F (25.8°C).

Temperature

With the transition into August, Coster notes an average high-temperature of a still warm 78.4°F (25.8°C), closely resembling July. Throughout the nights in August, an average low-temperature of 60.6°F (15.9°C) is noted.

Humidity

In August, the average relative humidity in Coster is 82%.

Rainfall

In Coster, in August, it is raining for 14.5 days, with typically 2.44" (62mm) of accumulated precipitation. Throughout the year, there are 148.3 rainfall days, and 31.02" (788mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in August in Coster is 13h and 52min.
On the first day of August, sunrise is at 6:03 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 7:46 pm CDT.

Sunshine

In Coster, Iowa, the average sunshine in August is 9.8h.

UV index

The average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: A maximum high UV index of 5 in August translates into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
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Frequently asked questions

What is the temperature in August in Coster?

The average high-temperature, in August, in Coster, is 78.4°F (25.8°C), while the average low-temperature is 60.6°F (15.9°C).

What is the average humidity in August in Coster?

In August, the average relative humidity in Coster is 82%.

How many days does it rain in August in Coster?

In Coster, Iowa, in August, during 14.5 rainfall days, 2.44" (62mm) of precipitation is typically accumulated.

When it does not snow in Coster?

June through September are months without snowfall.

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

The average day length in August in Coster, Iowa, is 13h and 52min.

When are sunrise and sunset in August in Coster?

In August, on the first day of the month, sunrise is at 6:03 am and sunset at 8:30 pm. On the last day of the month, in Coster, Iowa, sunrise is at 6:35 am and sunset at 7:46 pm CDT.

How many hours of sunshine does Coster have in August?

The average sunshine duration in August is 9.8h.

How high is the UV index in August in Coster?

In August, the average daily maximum UV index in Coster, Iowa, is 5. A UV Index value of 3 to 5 symbolizes a medium 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
Coster, IA

Average temperature in August - Coster, IA
  • Average high temperature in August: 78.4°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (24.1°F).

  • Average low temperature in August: 60.6°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (11.8°F).

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Average pressure in August
Coster, IA

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

The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in August
Coster, IA

Average wind speed in August - Coster, IA
  • Average wind speed in August: 7.1mph

The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

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Average humidity in August
Coster, IA

Average humidity in August - Coster, IA
  • Average humidity in August: 82%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in August
Coster, IA

Average rainfall in August - Coster, IA
  • Average rainfall in August: 2.44"

The wettest month (with the highest rainfall) is June (4.76").
The driest month (with the least rainfall) is January (1.14").

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Average rainfall days in August
Coster, IA

Average rainfall days in August - Coster, IA
  • Average rainfall days in August: 14.5 days

The month with the highest number of rainy days is June (20.1 days).
The month with the least rainy days is February (4.9 days).

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Average snowfall in August
Coster, IA

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

The month with the highest snowfall is February (5.51").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Coster, IA

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

The month with the highest number of snowfall days is January (13.5 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
Coster, IA

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in August
Coster, IA

Average sunshine days in August - Coster, IA
  • Average sunshine days in August: 12.9 days

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is June (7.8 days).

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Average UV index in August
Coster, IA

Average UV index in August - Coster, IA
  • Average UV index in August: 5

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

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Average cloud cover in August
Coster, IA

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

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 31).

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Average visibility in August
Coster, IA

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

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

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Coster, Iowa, USA

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