August weather forecast
Goodwin, SD

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Weather in August

The last month of the summer, August, is also a moderately hot month in Goodwin, South Dakota, with an average temperature varying between 80.1°F (26.7°C) and 59°F (15°C).

Temperature

Goodwin's average high-temperature in August sits at a still moderately hot 80.1°F (26.7°C), showing little difference from the previous month. Goodwin, during August, witnesses an average low-temperature of 59°F (15°C).

Humidity

In Goodwin, the average relative humidity in August is 69%.

Rainfall

In August, the rain falls for 12.4 days. Throughout August, 1.81" (46mm) of precipitation is accumulated. In Goodwin, during the entire year, the rain falls for 112.3 days and collects up to 18.78" (477mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in August is 14h and 1min.
On the first day of the month, sunrise is at 6:14 am and sunset at 8:53 pm. On the last day of August, in Goodwin, sunrise is at 6:49 am and sunset at 8:05 pm CDT.

Sunshine

The average sunshine in August is 10.3h.

UV index

In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In August, a regular UV index of 5 translates into these guidelines:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Frequently asked questions

What is the usual temperature for Goodwin in August?

During August, Goodwin experiences an average high-temperature of 80.1°F (26.7°C) and a low-temperature of 59°F (15°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in July is estimated at 84.2°F (29°C).

What is the average humidity in August?

In Goodwin, the average relative humidity in August is 69%.

How much does it rain in August?

In Goodwin, during August, the rain falls for 12.4 days and regularly aggregates up to 1.81" (46mm) of precipitation.

When it does not snow?

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

What is the average length of the day in August?

In Goodwin, the average day length in August is 14h and 1min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:14 am and sunset at 8:53 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 8:05 pm CDT.

How long on average sun shines in August?

In August, the average sunshine duration is 10.3h.

How high is the UV index in August?

In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Goodwin, SD

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

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (19.4°F).

  • Average low temperature in August: 59°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (5.5°F).

Average pressure in August
Goodwin, SD

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

The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in August
Goodwin, SD

Average wind speed in August - Goodwin, SD
  • Average wind speed in August: 8.6mph

The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).

Average humidity in August
Goodwin, SD

Average humidity in August - Goodwin, SD
  • Average humidity in August: 69%

The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are September and October (68%).

Average rainfall in August
Goodwin, SD

Average rainfall in August - Goodwin, SD
  • Average rainfall in August: 1.81"

The wettest month (with the highest rainfall) is June (3.19").
The driest months (with the least rainfall) are January and February (0.59").

Average rainfall days in August
Goodwin, SD

Average rainfall days in August - Goodwin, SD
  • Average rainfall days in August: 12.4 days

The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (2.7 days).

Average snowfall in August
Goodwin, SD

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

The months with the highest snowfall are January and December (3.74").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Goodwin, SD

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

The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • 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 36min).

Average sunshine days in August
Goodwin, SD

Average sunshine days in August - Goodwin, SD
  • Average sunshine days in August: 15.7 days

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

Average UV index in August
Goodwin, SD

Average UV index in August - Goodwin, 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 and December (UV index 1).

Average cloud cover in August
Goodwin, SD

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

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in August
Goodwin, SD

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

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

Goodwin, South Dakota, USA

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