August weather forecast
Webster, IA

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Weather in August

The last month of the summer, August, is also a moderately hot month in Webster, Iowa, with temperature in the range of an average high of 81.1°F (27.3°C) and an average low of 62.8°F (17.1°C).

Temperature

As Webster welcomes August, the average high-temperature records at a still moderately hot 81.1°F (27.3°C), marking an insignificant deviation from the prior month. Webster experiences an average low-temperature of 62.8°F (17.1°C) in the month of August.

Heat index

The average heat index in August is computed to be a tropical 86°F (30°C). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.
Keep in mind the heat index values are meant for areas in shade and with light wind. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.

Humidity

The average relative humidity in August is 79%.

Rainfall

In Webster, in August, during 12.3 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. In Webster, Iowa, during the entire year, the rain falls for 137.9 days and collects up to 27.76" (705mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in August in Webster is 13h and 47min.
On the first day of the month, sunrise is at 6:04 am and sunset at 8:25 pm. On the last day of August, in Webster, sunrise is at 6:34 am and sunset at 7:42 pm CDT.

Sunshine

The average sunshine in August in Webster is 9.9h.

UV index

The average daily maximum UV index in August in Webster is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 5 during August translates into the following guidance:
Guard yourself - Avoiding sunburn is suggested. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
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Frequently asked questions

What are August temperatures in Webster?

The high-temperature, in August, in Webster, records 81.1°F (27.3°C), while the low-temperature is 62.8°F (17.1°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is computed to be 86°F (30°C).

What is the average humidity in August in Webster?

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

How much does it rain in Webster in August?

In Webster, Iowa, in August, it is raining for 12.3 days, with typically 2.24" (57mm) of accumulated precipitation.

When it does not snow in Webster?

June through September are months without snowfall in Webster, Iowa.

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

In August, the average day length is 13h and 47min.

When is the sunrise / sunset in August in Webster?

On the first day of August in Webster, Iowa, sunrise is at 6:04 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 7:42 pm CDT.

How many hours of sunshine does Webster have in August?

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

What is the UV index reading in August in Webster?

In Webster, Iowa, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Webster, IA

Average temperature in August - Webster, IA
  • Average high temperature in August: 81.1°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (28.6°F).

  • Average low temperature in August: 62.8°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).

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Average pressure in August
Webster, IA

Average pressure in August - Webster, 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 (29.89"Hg).

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Average wind speed in August
Webster, IA

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

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

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Average humidity in August
Webster, IA

Average humidity in August - Webster, 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 (72%).

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Average rainfall in August
Webster, IA

Average rainfall in August - Webster, IA
  • Average rainfall in August: 2.24"

The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is February (0.98").

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Average rainfall days in August
Webster, IA

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

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (4.9 days).

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Average snowfall in August
Webster, IA

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

The month with the highest snowfall is January (4.06").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Webster, IA

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

The month with the highest number of snowfall days is January (9.5 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
Webster, IA

Average daylight in August / Average sunshine in August - Webster, 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 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days in August
Webster, IA

Average sunshine days in August - Webster, IA
  • Average sunshine days in August: 15.5 days

The month with the most sunshine days is December (19.1 days).
The month with the least sunshine days is June (10.3 days).

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Average UV index in August
Webster, IA

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

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

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Average cloud cover in August
Webster, IA

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

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 29).

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Average visibility in August
Webster, IA

Average visibility in August - Webster, 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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Webster, Iowa, USA

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