September weather forecast
Wanblee, SD

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Wanblee, South Dakota, with an average temperature varying between 58.3°F (14.6°C) and 77.5°F (25.3°C).

Temperature

The decrease of average high-temperatures is mild in September, with a decline from a tropical 87.1°F (30.6°C) in August to a warm 77.5°F (25.3°C). Wanblee, in September, witnesses an average low-temperature of 58.3°F (14.6°C).

Humidity

September is the least humid month in Wanblee, with an average relative humidity of 47%.

Rainfall

In Wanblee, in September, it is raining for 8.5 days, with typically 0.91" (23mm) of accumulated precipitation. Throughout the year, there are 95.3 rainfall days, and 13.74" (349mm) of precipitation is accumulated.

Snowfall

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

Daylight

In September, the average length of the day in Wanblee is 12h and 29min.
On the first day of September in Wanblee, South Dakota, sunrise is at 6:11 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:28 pm MDT.

Sunshine

In Wanblee, the average sunshine in September is 9.9h.

UV index

In Wanblee, South Dakota, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 5 during September translates into these guidelines:
Undertake protective steps - Recommendations to avoid sunburn are issued. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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Frequently asked questions

What is the usual temperature for Wanblee in September?

In Wanblee, 77.5°F (25.3°C) is the average high-temperature and 58.3°F (14.6°C) is the average low-temperature during September. In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is estimated at 89.6°F (32°C).

What is the least humid month in Wanblee?

The least humid month is September, with an average relative humidity of 47%.

What is the average humidity in September in Wanblee?

The average relative humidity in September is 47%.

How much does it rain in Wanblee in September?

In Wanblee, during September, the rain falls for 8.5 days and regularly aggregates up to 0.91" (23mm) of precipitation.

When it does not snow in Wanblee?

June through September are months without snowfall.

Does it snow in Wanblee in September?

In Wanblee, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Wanblee have in September?

The average day length in September is 12h and 29min.

When is the sunrise / sunset in September in Wanblee?

In September, on the first day of the month, sunrise is at 6:11 am and sunset at 7:21 pm. On the last day of the month, in Wanblee, sunrise is at 6:43 am and sunset at 6:28 pm MDT.

How many hours of sunshine does Wanblee have in September?

The average sunshine duration in September in Wanblee is 9.9h.

What is the UV index intensity in September in Wanblee?

In September, the average daily maximum UV index in Wanblee, South Dakota, is 5. A UV Index reading of 3 to 5 represents a medium hazard to health 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 September
Wanblee, SD

Average temperature in September - Wanblee, SD
  • Average high temperature in September: 77.5°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in September: 58.3°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

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Average pressure in September
Wanblee, SD

Average pressure in September - Wanblee, SD
  • Average pressure in September: 29.94"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in September
Wanblee, SD

Average wind speed in September - Wanblee, SD
  • Average wind speed in September: 11.1mph

The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is February (10.1mph).

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Average humidity in September
Wanblee, SD

Average humidity in September - Wanblee, SD
  • Average humidity in September: 47%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is September (47%).

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Average rainfall in September
Wanblee, SD

Average rainfall in September - Wanblee, SD
  • Average rainfall in September: 0.91"

The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is January (0.39").

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Average rainfall days in September
Wanblee, SD

Average rainfall days in September - Wanblee, SD
  • Average rainfall days in September: 8.5 days

The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is February (2.6 days).

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Average snowfall in September
Wanblee, SD

Average snowfall in September - Wanblee, SD
  • Average snowfall in September: 0"

The month with the highest snowfall is February (3.15").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Wanblee, SD

Average snowfall days in September - Wanblee, SD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Wanblee, SD

Average daylight in September / Average sunshine in September - Wanblee, SD
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in September: 9h and 5min

The month with the most sunshine is August (Average sunshine: 11h and 42min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).

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Average sunshine days in September
Wanblee, SD

Average sunshine days in September - Wanblee, SD
  • Average sunshine days in September: 18.8 days

The month with the most sunshine days is December (21.1 days).
The months with the least sunshine days are April and June (14.1 days).

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Average UV index in September
Wanblee, SD

Average UV index in September - Wanblee, SD
  • Average UV index in September: 5

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in September
Wanblee, SD

Average cloud cover in September - Wanblee, SD
  • Average cloud cover in September: 19

The month with the most cloud cover is January (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 18).

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Average visibility in September
Wanblee, SD

Average visibility in September - Wanblee, SD
  • Average visibility in September: 6mi

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

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Wanblee, South Dakota, USA

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