August weather forecast
Wilton, IA

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Weather in August

The last month of the summer, August, is another warm month in Wilton, Iowa, with an average temperature ranging between max 80.4°F (26.9°C) and min 62.4°F (16.9°C).

Temperature

The weather during August records an average high-temperature of a still moderately hot 80.4°F (26.9°C), closely mirroring the preceding month. Throughout the month of August, Wilton expects an average low of 62.4°F (16.9°C).

Humidity

In August, the average relative humidity in Wilton is 80%.

Rainfall

In Wilton, during August, the rain falls for 12.3 days and regularly aggregates up to 1.81" (46mm) of precipitation. In Wilton, during the entire year, the rain falls for 136.1 days and collects up to 27.8" (706mm) of precipitation.

Snowfall

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

Daylight

In Wilton, the average length of the day in August is 13h and 48min.
On the first day of the month, sunrise is at 5:59 am and sunset at 8:21 pm. On the last day of August, in Wilton, sunrise is at 6:29 am and sunset at 7:38 pm CDT.

Sunshine

In August, the average sunshine is 9.9h.

UV index

In Wilton, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index, 5 in August, converts into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature in Wilton?

In Wilton, 80.4°F (26.9°C) is the average high-temperature and 62.4°F (16.9°C) is the average low-temperature during August. In July, the average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, is evaluated at 87.8°F (31°C).

What is the average humidity in August in Wilton?

The average relative humidity in August in Wilton is 80%.

How much does it rain in Wilton in August?

In August, in Wilton, the rain falls for 12.3 days. Throughout August, 1.81" (46mm) of precipitation is accumulated.

When it does not snow in Wilton?

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

How many hours of daylight does Wilton have in August?

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

When are sunrise and sunset in August in Wilton?

On the first day of August in Wilton, Iowa, sunrise is at 5:59 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:38 pm CDT.

How long on average sun shines in August in Wilton?

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

What is the UV index reading in August in Wilton?

In Wilton, Iowa, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Wilton, IA

Average temperature in August - Wilton, IA
  • Average high temperature in August: 80.4°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (27.7°F).

  • Average low temperature in August: 62.4°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
Wilton, IA

Average pressure in August - Wilton, 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
Wilton, IA

Average wind speed in August - Wilton, IA
  • Average wind speed in August: 6.8mph

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 (6.8mph).

Average humidity in August
Wilton, IA

Average humidity in August - Wilton, IA
  • Average humidity in August: 80%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

Average rainfall in August
Wilton, IA

Average rainfall in August - Wilton, IA
  • Average rainfall in August: 1.81"

The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is February (1.14").

Average rainfall days in August
Wilton, IA

Average rainfall days in August - Wilton, IA
  • Average rainfall days in August: 12.3 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (4.4 days).

Average snowfall in August
Wilton, IA

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

The month with the highest snowfall is January (4.21").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Wilton, IA

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

The month with the highest number of snowfall days is January (11.2 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
Wilton, IA

Average daylight in August / Average sunshine in August - Wilton, 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 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in August
Wilton, IA

Average sunshine days in August - Wilton, IA
  • Average sunshine days in August: 16.3 days

The month with the most sunshine days is December (18.2 days).
The month with the least sunshine days is June (11.8 days).

Average UV index in August
Wilton, IA

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

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

Average cloud cover in August
Wilton, IA

Average cloud cover in August - Wilton, IA
  • Average cloud cover in August: 30

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in August
Wilton, IA

Average visibility in August - Wilton, 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).

Wilton, Iowa, USA

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