August weather forecast
Winfield, IA

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Weather in August

August, the last month of the summer in Winfield, is another warm month, with temperature in the range of an average high of 81.7°F (27.6°C) and an average low of 63.3°F (17.4°C).

Temperature

Winfield sees the arrival of August with an average high-temperature of a still moderately hot 81.7°F (27.6°C), indicating a subtle variation from July. In Winfield, in August, the average low-temperature is a refreshing 63.3°F (17.4°C).

Heat index

In August, the average heat index is computed to be a hot 87.8°F (31°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 exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.

Humidity

In August, the average relative humidity is 79%.

Rainfall

In Winfield, in August, it is raining for 13.1 days, with typically 2.2" (56mm) of accumulated precipitation. Throughout the year, in Winfield, there are 140.1 rainfall days, and 29.92" (760mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in August is 13h and 46min.
On the first day of August, sunrise is at 6:02 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 7:39 pm CDT.

Sunshine

In August, the average sunshine is 9.9h.

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 health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: A typical high UV index of 6 in August suggests the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
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Frequently asked questions

What is the temperature in August in Winfield?

The average high-temperature and low-temperature in Winfield during August are 81.7°F (27.6°C) and 63.3°F (17.4°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 87.8°F (31°C).

What is the average humidity in August in Winfield?

The average relative humidity in August in Winfield, Iowa, is 79%.

How much does it rain in Winfield in August?

In August, in Winfield, Iowa, the rain falls for 13.1 days. Throughout August, 2.2" (56mm) of precipitation is accumulated.

When it does not snow in Winfield?

May through September are months without snowfall in Winfield, Iowa.

How many hours of daylight does Winfield have in August?

In August, the average day length in Winfield is 13h and 46min.

When are sunrise and sunset in August in Winfield?

On the first day of August in Winfield, Iowa, sunrise is at 6:02 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 7:39 pm CDT.

How long on average sun shines in August in Winfield?

In August, the average sunshine duration in Winfield is 9.9h.

When is the highest UV index in Winfield?

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

How high is the UV index in August in Winfield?

In Winfield, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
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
Winfield, IA

Average temperature in August - Winfield, IA
  • Average high temperature in August: 81.7°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in August: 63.3°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).

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Average pressure in August
Winfield, IA

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in August
Winfield, IA

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

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

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Average humidity in August
Winfield, IA

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

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in August
Winfield, IA

Average rainfall in August - Winfield, IA
  • Average rainfall in August: 2.2"

The wettest month (with the highest rainfall) is May (4.29").
The driest months (with the least rainfall) are February and December (1.38").

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Average rainfall days in August
Winfield, IA

Average rainfall days in August - Winfield, IA
  • Average rainfall days in August: 13.1 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (4.6 days).

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Average snowfall in August
Winfield, IA

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

The month with the highest snowfall is January (4.76").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Winfield, IA

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

The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Winfield, 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 18min).

  • 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 0min).

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Average sunshine days in August
Winfield, IA

Average sunshine days in August - Winfield, IA
  • Average sunshine days in August: 14.8 days

The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is May (10.6 days).

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Average UV index in August
Winfield, IA

Average UV index in August - Winfield, 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).

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Average cloud cover in August
Winfield, IA

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

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July, August and September (Cloud cover 31).

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Average visibility in August
Winfield, IA

Average visibility in August - Winfield, 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).

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Winfield, Iowa, USA

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