September weather forecast
Huron, SD

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An old water tower stands high with a bold sign of the town name in the small farming town of Bryant near Huron, South Dakota.
An old water tower stands high with a bold sign of the town name in the small farming town of Bryant near Huron, South Dakota.

Weather in September

September unveils the autumn season in Huron, gradually replacing the summer blues with vibrant fall hues. The weather begins to cool, taking a leap from the summer extremes with temperatures dropping to an average high of 75.7°F (24.3°C). Leaves begin to pile on the sidewalks, painting the cityscape in shades of orange, red, and gold. Gradual changes in the climate, shorter days, and crisp breeze signify the farewell to summer revelry. The sense of change is tangible as fall activities become a bustling part of the local scenario.

Temperature

The shift from August to September in Huron coincides with a small decrease in the average high-temperature, down to a still moderately hot 75.7°F (24.3°C) from 84.2°F (29°C). An average low-temperature of 54.5°F (12.5°C) marks the month of September in Huron.

Humidity

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

Rainfall

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

Snowfall

In Huron, snow does not fall in May through September.

Daylight

In Huron, South Dakota, the average length of the day in September is 12h and 30min.
On the first day of September, sunrise is at 6:56 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:14 pm CDT.

Sunshine

In September, the average sunshine in Huron is 8.9h.

UV index

In Huron, South Dakota, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In September, the UV index of 4 transforms into the following advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Boost your sun resistance with garments that are densely woven yet spacious.
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Frequently asked questions

What are the temperatures in Huron in September?

In September, the average high-temperature and low-temperature in Huron are 75.7°F (24.3°C) and 54.5°F (12.5°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in August is computed to be 89.6°F (32°C).

What is the least humid month in Huron?

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

What is the average humidity in September in Huron?

In September, the average relative humidity in Huron, South Dakota, is 62%.

How many days does it rain in September in Huron?

In Huron, South Dakota, during September, the rain falls for 9.8 days and regularly aggregates up to 1.38" (35mm) of precipitation.

When it does not snow in Huron?

In Huron, snow does not fall in May through September.

Does it snow in Huron in September?

In Huron, South Dakota, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Huron?

The average day length in September is 12h and 30min.

When is the sunrise / sunset in September in Huron?

On the first day of September, sunrise is at 6:56 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:14 pm CDT.

How many hours of sunshine does Huron have in September?

In Huron, the average sunshine duration in September is 8.9h.

What is the UV index intensity in September in Huron?

The average daily maximum UV index in September in Huron is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe 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 September
Huron, SD

Average temperature in September - Huron, 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).

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Average pressure in September
Huron, SD

Average pressure in September - Huron, 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).

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Average wind speed in September
Huron, SD

Average wind speed in September - Huron, 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).

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Average humidity in September
Huron, SD

Average humidity in September - Huron, 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%).

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Average rainfall in September
Huron, SD

Average rainfall in September - Huron, 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").

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Average rainfall days in September
Huron, SD

Average rainfall days in September - Huron, 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).

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Average snowfall in September
Huron, SD

Average snowfall in September - Huron, 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").

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Average snowfall days in September
Huron, SD

Average snowfall days in September - Huron, 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).

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

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

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 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).

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Average sunshine days in September
Huron, SD

Average sunshine days in September - Huron, 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).

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Average UV index in September
Huron, SD

Average UV index in September - Huron, 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).

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Average cloud cover in September
Huron, SD

Average cloud cover in September - Huron, 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).

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Average visibility in September
Huron, SD

Average visibility in September - Huron, 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).

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Huron, South Dakota, USA

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