August weather forecast
Webster, SD

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Weather in August

August, the last month of the summer in Webster, is another warm month, with temperature in the range of an average high of 80.1°F (26.7°C) and an average low of 58.8°F (14.9°C).

Temperature

The dawn of August sees an average high-temperature of a still moderately hot 80.1°F (26.7°C), subtly contrasting with July's 81°F (27.2°C). The nighttime temperature, during August, averages of 58.8°F (14.9°C).

Humidity

In Webster, the average relative humidity in August is 67%.

Rainfall

In Webster, in August, it is raining for 12.3 days, with typically 2.01" (51mm) of accumulated precipitation. Throughout the year, there are 112.9 rainfall days, and 22.09" (561mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Webster.

Daylight

The average length of the day in August is 14h and 2min.
On the first day of August in Webster, sunrise is at 6:15 am and sunset at 8:57 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 8:08 pm CDT.

Sunshine

In Webster, the average sunshine in August is 10.3h.

UV index

In Webster, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 5 during August leads to these instructions:
Undertake protective steps - Preventing sun damage is advised. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in August in Webster?

In August, in Webster, the average high-temperature is 80.1°F (26.7°C), and the average low-temperature is 58.8°F (14.9°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in July is estimated at 84.2°F (29°C).

What is the average humidity in August in Webster?

In August, the average relative humidity is 67%.

How many days does it rain in August in Webster?

In August, in Webster, South Dakota, the rain falls for 12.3 days. Throughout August, 2.01" (51mm) of precipitation is accumulated.

When it does not snow in Webster?

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

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

In Webster, South Dakota, the average day length in August is 14h and 2min.

What time are sunrise and sunset in August in Webster?

On the first day of August in Webster, South Dakota, sunrise is at 6:15 am and sunset at 8:57 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 8:08 pm CDT.

How long on average sun shines in August in Webster?

In Webster, South Dakota, the average sunshine duration in August is 10.3h.

What is the UV index reading in August in Webster?

In Webster, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate health threat 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
Webster, SD

Average temperature in August - Webster, SD
  • Average high temperature in August: 80.1°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (18.9°F).

  • Average low temperature in August: 58.8°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (5°F).

Average pressure in August
Webster, SD

Average pressure in August - Webster, SD
  • Average pressure in August: 29.92"Hg

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in August
Webster, SD

Average wind speed in August - Webster, SD
  • Average wind speed in August: 8.8mph

The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is July (8.7mph).

Average humidity in August
Webster, SD

Average humidity in August - Webster, SD
  • Average humidity in August: 67%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is September (66%).

Average rainfall in August
Webster, SD

Average rainfall in August - Webster, SD
  • Average rainfall in August: 2.01"

The wettest month (with the highest rainfall) is July (3.58").
The driest month (with the least rainfall) is November (0.63").

Average rainfall days in August
Webster, SD

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

The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is February (2.3 days).

Average snowfall in August
Webster, SD

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

The month with the highest snowfall is December (4.53").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Webster, SD

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

The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Webster, SD

Average daylight in August / Average sunshine in August - Webster, SD
  • Average daylight in August: 14h and 0min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

Average sunshine days in August
Webster, SD

Average sunshine days in August - Webster, SD
  • Average sunshine days in August: 16.5 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is June (10.4 days).

Average UV index in August
Webster, SD

Average UV index in August - Webster, SD
  • 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, November and December (UV index 1).

Average cloud cover in August
Webster, SD

Average cloud cover in August - Webster, SD
  • Average cloud cover in August: 27

The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 27).

Average visibility in August
Webster, SD

Average visibility in August - Webster, SD
  • Average visibility in August: 6mi

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

Webster, South Dakota, USA

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