September weather forecast
Pine Ridge, SD

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Weather in September

September, the first month of the autumn in Pine Ridge, is also a moderately hot month, with an average temperature ranging between max 77°F (25°C) and min 55.9°F (13.3°C).

Temperature

The onset of September entails a subtle temperature shift, as the average high-temperature eases from 85.6°F (29.8°C) in August to a still warm 77°F (25°C). Pine Ridge, during September nights, observes an average temperature of 55.9°F (13.3°C).

Humidity

In September, the average relative humidity is 49%.

Rainfall

In Pine Ridge, in September, it is raining for 6.1 days, with typically 1.02" (26mm) of accumulated precipitation. Throughout the year, there are 86.7 rainfall days, and 13.66" (347mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Pine Ridge, during the entire year, snow falls for 47.4 days and aggregates up to 22.72" (577mm) of snow.

Daylight

In September, the average length of the day is 12h and 29min.
On the first day of the month, sunrise is at 6:15 am and sunset at 7:24 pm. On the last day of September, in Pine Ridge, South Dakota, sunrise is at 6:47 am and sunset at 6:32 pm MDT.

Sunshine

In Pine Ridge, the average sunshine in September is 10.2h.

UV index

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In September, an average UV index of 4 transforms into the following instructions:
Undertake protective steps - Preventing sun damage is advised. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. 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. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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Frequently asked questions

What is the average September temperature in Pine Ridge?

In September, in Pine Ridge, the average high-temperature is 77°F (25°C), and the average low-temperature is 55.9°F (13.3°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 86°F (30°C).

What is the average humidity in September in Pine Ridge?

In Pine Ridge, South Dakota, the average relative humidity in September is 49%.

How much does it rain in Pine Ridge in September?

In September, in Pine Ridge, the rain falls for 6.1 days. Throughout September, 1.02" (26mm) of precipitation is accumulated.

When does it start snowing in Pine Ridge?

September is the first month it typically snows in Pine Ridge, South Dakota. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

How many hours of daylight does Pine Ridge have in September?

The average day length in September in Pine Ridge, South Dakota, is 12h and 29min.

What time are sunrise and sunset in September in Pine Ridge?

In September, on the first day of the month, sunrise is at 6:15 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:32 pm MDT.

How long on average sun shines in September in Pine Ridge?

In Pine Ridge, South Dakota, the average sunshine duration in September is 10.2h.

What is the UV index reading in September in Pine Ridge?

In Pine Ridge, South Dakota, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Pine Ridge, SD

Average temperature in September - Pine Ridge, SD
  • Average high temperature in September: 77°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is December (32.4°F).

  • Average low temperature in September: 55.9°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).

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Average pressure in September
Pine Ridge, SD

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in September
Pine Ridge, SD

Average wind speed in September - Pine Ridge, SD
  • Average wind speed in September: 11.2mph

The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest month (with the lowest average wind speed) is August (10.2mph).

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Average humidity in September
Pine Ridge, SD

Average humidity in September - Pine Ridge, SD
  • Average humidity in September: 49%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (48%).

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Average rainfall in September
Pine Ridge, SD

Average rainfall in September - Pine Ridge, SD
  • Average rainfall in September: 1.02"

The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is January (0.55").

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Average rainfall days in September
Pine Ridge, SD

Average rainfall days in September - Pine Ridge, SD
  • Average rainfall days in September: 6.1 days

The month with the highest number of rainy days is May (13.1 days).
The months with the least rainy days are February and December (2.5 days).

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Average snowfall in September
Pine Ridge, SD

Average snowfall in September - Pine Ridge, SD
  • Average snowfall in September: 0.04"

The month with the highest snowfall is February (4.02").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in September
Pine Ridge, SD

Average snowfall days in September - Pine Ridge, SD
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is February (11.5 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in September /
Average sunshine in September
Pine Ridge, SD

Average daylight in September / Average sunshine in September - Pine Ridge, 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: 10h and 1min

The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

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Average sunshine days in September
Pine Ridge, SD

Average sunshine days in September - Pine Ridge, SD
  • Average sunshine days in September: 22.8 days

The month with the most sunshine days is September (22.8 days).
The month with the least sunshine days is April (13.2 days).

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Average UV index in September
Pine Ridge, SD

Average UV index in September - Pine Ridge, SD
  • Average UV index in September: 4

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in September
Pine Ridge, SD

Average cloud cover in September - Pine Ridge, SD
  • Average cloud cover in September: 19

The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 16).

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Average visibility in September
Pine Ridge, SD

Average visibility in September - Pine Ridge, 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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Pine Ridge, South Dakota, USA

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