September weather forecast
Oak Hills Addition, SD

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Weather in September

The first month of the autumn, September, is still a warm month in Oak Hills Addition, South Dakota, with an average temperature ranging between min 55°F (12.8°C) and max 76.1°F (24.5°C).

Temperature

September's onset introduces a mild reduction in the average high-temperature, from 83.3°F (28.5°C) in August to a still moderately hot 76.1°F (24.5°C). During September nights, Oak Hills Addition witnesses a consistent average temperature of 55°F (12.8°C).

Humidity

In September, the average relative humidity in Oak Hills Addition, South Dakota, is 67%.

Rainfall

In September, the rain falls for 11.6 days. Throughout September, 1.81" (46mm) of precipitation is accumulated. Throughout the year, there are 117.9 rainfall days, and 21.93" (557mm) of precipitation is accumulated.

Snowfall

In Oak Hills Addition, snow does not fall in June through September.

Daylight

The average length of the day in September is 12h and 29min.
On the first day of September in Oak Hills Addition, sunrise is at 6:55 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 7:12 pm CDT.

Sunshine

In September, the average sunshine is 8.8h.

UV index

In September, the average daily maximum UV index in Oak Hills Addition is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high UV index of 5 in September translates into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
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Frequently asked questions

What is the usual temperature for Oak Hills Addition in September?

An average high-temperature, in September, in Oak Hills Addition, is 76.1°F (24.5°C) and the average low-temperature is 55°F (12.8°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is appraised at 89.6°F (32°C).

What is the average humidity in September in Oak Hills Addition?

In September, the average relative humidity in Oak Hills Addition is 67%.

How much does it rain in Oak Hills Addition in September?

In Oak Hills Addition, South Dakota, in September, it is raining for 11.6 days, with typically 1.81" (46mm) of accumulated precipitation.

When it does not snow in Oak Hills Addition?

June through September are months without snowfall in Oak Hills Addition.

Does it snow in Oak Hills Addition in September?

In Oak Hills Addition, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Oak Hills Addition?

The average day length in September in Oak Hills Addition, South Dakota, is 12h and 29min.

When are sunrise and sunset in September in Oak Hills Addition?

In September, on the first day of the month, sunrise is at 6:55 am and sunset at 8:04 pm. On the last day of the month, in Oak Hills Addition, sunrise is at 7:27 am and sunset at 7:12 pm CDT.

How many hours of sunshine does Oak Hills Addition have in September?

In Oak Hills Addition, the average sunshine duration in September is 8.8h.

What is the UV index intensity in September in Oak Hills Addition?

In Oak Hills Addition, South Dakota, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Oak Hills Addition, SD

Average temperature in September - Oak Hills Addition, SD
  • Average high temperature in September: 76.1°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (26.8°F).

  • Average low temperature in September: 55°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (12.9°F).

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Average pressure in September
Oak Hills Addition, SD

Average pressure in September - Oak Hills Addition, SD
  • Average pressure in September: 29.97"Hg

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

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Average wind speed in September
Oak Hills Addition, SD

Average wind speed in September - Oak Hills Addition, SD
  • Average wind speed in September: 9.2mph

The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).

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Average humidity in September
Oak Hills Addition, SD

Average humidity in September - Oak Hills Addition, SD
  • Average humidity in September: 67%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (64%).

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Average rainfall in September
Oak Hills Addition, SD

Average rainfall in September - Oak Hills Addition, SD
  • Average rainfall in September: 1.81"

The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is February (0.59").

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Average rainfall days in September
Oak Hills Addition, SD

Average rainfall days in September - Oak Hills Addition, SD
  • Average rainfall days in September: 11.6 days

The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (2.3 days).

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Average snowfall in September
Oak Hills Addition, SD

Average snowfall in September - Oak Hills Addition, SD
  • Average snowfall in September: 0"

The month with the highest snowfall is December (2.95").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Oak Hills Addition, SD

Average snowfall days in September - Oak Hills Addition, SD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (9.7 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
Oak Hills Addition, SD

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

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Average sunshine days in September
Oak Hills Addition, SD

Average sunshine days in September - Oak Hills Addition, SD
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (9.3 days).

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Average UV index in September
Oak Hills Addition, SD

Average UV index in September - Oak Hills Addition, SD
  • Average UV index in September: 5

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

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Average cloud cover in September
Oak Hills Addition, SD

Average cloud cover in September - Oak Hills Addition, SD
  • Average cloud cover in September: 26

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 25).

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Average visibility in September
Oak Hills Addition, SD

Average visibility in September - Oak Hills Addition, 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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Oak Hills Addition, South Dakota, USA

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