August weather forecast
Coulter, IA

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Weather in August

The last month of the summer, August, is also a moderately hot month in Coulter, Iowa, with an average temperature varying between 60.4°F (15.8°C) and 78.3°F (25.7°C).

Temperature

Coulter experiences an average high-temperature of a still warm 78.3°F (25.7°C) with the onset of August, subtly varied from July's 79.7°F (26.5°C). In the month of August, Coulter witnesses a consistent average low-temperature of 60.4°F (15.8°C).

Humidity

In August, the average relative humidity is 82%.

Rainfall

In August, in Coulter, the rain falls for 15.3 days. Throughout August, 2.64" (67mm) of precipitation is accumulated. Throughout the year, there are 146.2 rainfall days, and 29.69" (754mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In Coulter, the average length of the day in August is 13h and 52min.
On the first day of the month, sunrise is at 6:05 am and sunset at 8:33 pm. On the last day of August, sunrise is at 6:38 am and sunset at 7:49 pm CDT.

Sunshine

In Coulter, the average sunshine in August is 9.8h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: An average UV index of 5 in August transforms into this advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Coulter in August?

Coulter in August has an average high-temperature of 78.3°F (25.7°C) and an average low-temperature of 60.4°F (15.8°C).

What is the average humidity in August?

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

How many days does it rain in August?

In August, the rain falls for 15.3 days. Throughout August, 2.64" (67mm) of precipitation is accumulated.

When it does not snow?

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

How many hours of daylight does Coulter have in August?

In August, the average day length is 13h and 52min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:05 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 7:49 pm CDT.

How long on average sun shines in August?

In Coulter, the average sunshine duration in August is 9.8h.

What is the month with the highest UV index?

May through August, with an average maximum UV index of 5, are months with the highest UV index.

What is the UV index intensity in August?

The average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Coulter, IA

Average temperature in August - Coulter, IA
  • Average high temperature in August: 78.3°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (23.4°F).

  • Average low temperature in August: 60.4°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).

Average pressure in August
Coulter, IA

Average pressure in August - Coulter, 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).

Average wind speed in August
Coulter, IA

Average wind speed in August - Coulter, IA
  • Average wind speed in August: 7.2mph

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 (7.2mph).

Average humidity in August
Coulter, IA

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

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (71%).

Average rainfall in August
Coulter, IA

Average rainfall in August - Coulter, IA
  • Average rainfall in August: 2.64"

The wettest month (with the highest rainfall) is June (4.69").
The driest month (with the least rainfall) is January (1.1").

Average rainfall days in August
Coulter, IA

Average rainfall days in August - Coulter, IA
  • Average rainfall days in August: 15.3 days

The month with the highest number of rainy days is June (20.2 days).
The month with the least rainy days is February (4 days).

Average snowfall in August
Coulter, IA

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

The month with the highest snowfall is February (6.42").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Coulter, IA

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

The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Coulter, 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: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in August
Coulter, IA

Average sunshine days in August - Coulter, IA
  • Average sunshine days in August: 12.6 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (7.8 days).

Average UV index in August
Coulter, IA

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

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in August
Coulter, IA

Average cloud cover in August - Coulter, 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).

Average visibility in August
Coulter, IA

Average visibility in August - Coulter, 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).

Coulter, Iowa, USA

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