August weather forecast
Cosgrove, IA

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Weather in August

August, the last month of the summer in Cosgrove, is also a moderately hot month, with an average temperature varying between 80.6°F (27°C) and 62.2°F (16.8°C).

Temperature

The arrival of August denotes a barely perceptible change in the average high-temperatures to a still warm 80.6°F (27°C) from July's 81.5°F (27.5°C). Cosgrove, in August, observes a steady average low-temperature of 62.2°F (16.8°C).

Heat index

August's mean heat index is computed to be a tropical 86°F (30°C). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', provides an understanding of perceived warmth by combining temperature and relative humidity. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.

Humidity

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

Rainfall

In Cosgrove, during August, the rain falls for 12.8 days and regularly aggregates up to 1.93" (49mm) of precipitation. Throughout the year, there are 140.4 rainfall days, and 29.57" (751mm) of precipitation is accumulated.

Snowfall

In Cosgrove, Iowa, snow does not fall in May through September.

Daylight

In Cosgrove, the average length of the day in August is 13h and 48min.
On the first day of the month, sunrise is at 6:02 am and sunset at 8:24 pm. On the last day of August, sunrise is at 6:32 am and sunset at 7:41 pm CDT.

Sunshine

In Cosgrove, the average sunshine in August is 9.9h.

UV index

In Cosgrove, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 5 in August interprets into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Updated: Jun 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in August?

In Cosgrove, in August, the average high-temperature is 80.6°F (27°C), and the average low-temperature is 62.2°F (16.8°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is computed to be 86°F (30°C).

What is the average humidity in August?

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

How many days does it rain in August?

In Cosgrove, Iowa, in August, during 12.8 rainfall days, 1.93" (49mm) of precipitation is typically accumulated.

When it does not snow?

In Cosgrove, snow does not fall in May through September.

How many hours of daylight does Cosgrove have in August?

The average day length in August is 13h and 48min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 6:02 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 7:41 pm CDT.

How long on average sun shines in August?

The average sunshine duration in August is 9.9h.

What is the UV index reading in August in Cosgrove?

In Cosgrove, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents 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
Cosgrove, IA

Average temperature in August - Cosgrove, IA
  • Average high temperature in August: 80.6°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in August: 62.2°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).

Average pressure in August
Cosgrove, IA

Average pressure in August - Cosgrove, IA
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in August
Cosgrove, IA

Average wind speed in August - Cosgrove, IA
  • Average wind speed in August: 6.9mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).

Average humidity in August
Cosgrove, IA

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

The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (72%).

Average rainfall in August
Cosgrove, IA

Average rainfall in August - Cosgrove, IA
  • Average rainfall in August: 1.93"

The wettest month (with the highest rainfall) is May (4.69").
The driest months (with the least rainfall) are January and February (1.34").

Average rainfall days in August
Cosgrove, IA

Average rainfall days in August - Cosgrove, IA
  • Average rainfall days in August: 12.8 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is February (5 days).

Average snowfall in August
Cosgrove, IA

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

The month with the highest snowfall is January (5.28").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Cosgrove, IA

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

The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Cosgrove, 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 0min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in August
Cosgrove, IA

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

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10 days).

Average UV index in August
Cosgrove, IA

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

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

Average cloud cover in August
Cosgrove, IA

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

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in August
Cosgrove, IA

Average visibility in August - Cosgrove, IA
  • Average visibility in August: 6mi

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

Cosgrove, Iowa, USA

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