September weather forecast
Wessington Springs, SD

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Weather in September

September, the first month of the autumn in Wessington Springs, is still a warm month, with an average temperature varying between 75.7°F (24.3°C) and 54.5°F (12.5°C).

Temperature

September sees a slight reduction in average high-temperature, with a shift from a moderately hot 84.2°F (29°C) in August to a still warm 75.7°F (24.3°C). In Wessington Springs, the average low-temperature during the month of September is a cool 54.5°F (12.5°C).

Humidity

With an average relative humidity of 62%, September is the least humid month.

Rainfall

In Wessington Springs, during September, the rain falls for 9.8 days and regularly aggregates up to 1.38" (35mm) of precipitation. In Wessington Springs, during the entire year, the rain falls for 101.8 days and collects up to 18.19" (462mm) of precipitation.

Snowfall

In Wessington Springs, snow does not fall in May through September.

Daylight

The average length of the day in September is 12h and 29min.
On the first day of the month, sunrise is at 6:58 am and sunset at 8:09 pm. On the last day of September, sunrise is at 7:31 am and sunset at 7:16 pm CDT.

Sunshine

The average sunshine in September is 8.9h.

UV index

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 4 translates into these guidelines:
Put precautions into practice - Guidance to elude sunburn is provided. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Wessington Springs in September?

In September, the average high-temperature and low-temperature are 75.7°F (24.3°C) and 54.5°F (12.5°C) respectively. In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is computed to be 89.6°F (32°C).

What is the least humid month?

The least humid month is September, with an average relative humidity of 62%.

What is the average humidity in September?

In September, the average relative humidity is 62%.

How many days does it rain in September?

In Wessington Springs, in September, during 9.8 rainfall days, 1.38" (35mm) of precipitation is typically accumulated.

When it does not snow?

May through September are months without snowfall.

Does it snow in Wessington Springs in September?

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

What is the average length of the day in September?

In Wessington Springs, South Dakota, the average day length in September is 12h and 29min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:58 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:16 pm CDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.9h.

What is the UV index intensity in September?

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes 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
Wessington Springs, SD

Average temperature in September - Wessington Springs, SD
  • Average high temperature in September: 75.7°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (23.2°F).

  • Average low temperature in September: 54.5°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).

Average pressure in September
Wessington Springs, SD

Average pressure in September - Wessington Springs, SD
  • Average pressure in September: 29.96"Hg

The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in September
Wessington Springs, SD

Average wind speed in September - Wessington Springs, SD
  • Average wind speed in September: 9.7mph

The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (8.6mph).

Average humidity in September
Wessington Springs, SD

Average humidity in September - Wessington Springs, SD
  • Average humidity in September: 62%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is September (62%).

Average rainfall in September
Wessington Springs, SD

Average rainfall in September - Wessington Springs, SD
  • Average rainfall in September: 1.38"

The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.55").

Average rainfall days in September
Wessington Springs, SD

Average rainfall days in September - Wessington Springs, SD
  • Average rainfall days in September: 9.8 days

The month with the highest number of rainy days is June (15.2 days).
The month with the least rainy days is February (1.8 days).

Average snowfall in September
Wessington Springs, SD

Average snowfall in September - Wessington Springs, SD
  • Average snowfall in September: 0"

The month with the highest snowfall is February (3.54").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Wessington Springs, SD

Average snowfall days in September - Wessington Springs, SD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Wessington Springs, SD

Average daylight in September / Average sunshine in September - Wessington Springs, 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: 8h and 54min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in September
Wessington Springs, SD

Average sunshine days in September - Wessington Springs, SD
  • Average sunshine days in September: 17.5 days

The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is June (12.3 days).

Average UV index in September
Wessington Springs, SD

Average UV index in September - Wessington Springs, SD
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and November (UV index 1).

Average cloud cover in September
Wessington Springs, SD

Average cloud cover in September - Wessington Springs, SD
  • Average cloud cover in September: 26

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 22).

Average visibility in September
Wessington Springs, SD

Average visibility in September - Wessington Springs, SD
  • Average visibility in September: 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).

Wessington Springs, South Dakota, USA

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