September weather forecast
Buffalo Gap, SD

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Buffalo Gap, South Dakota, with an average temperature ranging between max 75.2°F (24°C) and min 54°F (12.2°C).

Temperature

Buffalo Gap in September undergoes a slight reduction in the average high-temperature, shifting from August's 84°F (28.9°C) to a still warm 75.2°F (24°C). Throughout the month of September, Buffalo Gap witnesses an average low-temperature of 54°F (12.2°C).

Humidity

The average relative humidity in September is 48%.

Rainfall

In Buffalo Gap, in September, it is raining for 9.3 days, with typically 1.14" (29mm) of accumulated precipitation. Throughout the year, in Buffalo Gap, South Dakota, there are 115.8 rainfall days, and 16.61" (422mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Buffalo Gap are January through May, September through December. September is the first month it typically snows in Buffalo Gap. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Buffalo Gap, during the entire year, snow falls for 49.2 days and aggregates up to 23.19" (589mm) of snow.

Daylight

In Buffalo Gap, South Dakota, the average length of the day in September is 12h and 29min.
On the first day of September, sunrise is at 6:18 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:35 pm MDT.

Sunshine

The average sunshine in September is 10.4h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index, 4 during September, leads to the following recommendations:
Take precautions - Protection against sun damage is advised. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
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Frequently asked questions

What is the temperature in September in Buffalo Gap?

The high-temperature, in September, in Buffalo Gap, records 75.2°F (24°C), while the low-temperature is 54°F (12.2°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, in August is estimated at 84.2°F (29°C).

What is the average humidity in September in Buffalo Gap?

In September, the average relative humidity in Buffalo Gap, South Dakota, is 48%.

How much does it rain in Buffalo Gap in September?

In Buffalo Gap, in September, during 9.3 rainfall days, 1.14" (29mm) of precipitation is typically accumulated.

When does it start to snow in Buffalo Gap?

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

How many hours of daylight does Buffalo Gap have in September?

In September, the average day length in Buffalo Gap is 12h and 29min.

When are sunrise and sunset in September in Buffalo Gap?

On the first day of September in Buffalo Gap, South Dakota, sunrise is at 6:18 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:35 pm MDT.

How long on average sun shines in September in Buffalo Gap?

The average sunshine duration in September in Buffalo Gap, South Dakota, is 10.4h.

What is the UV index reading in September in Buffalo Gap?

The average daily maximum UV index in September in Buffalo Gap is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
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
Buffalo Gap, SD

Average temperature in September - Buffalo Gap, SD
  • Average high temperature in September: 75.2°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is December (32.4°F).

  • Average low temperature in September: 54°F

The month with the highest average low temperature is July (63.9°F).
The coldest months (with the lowest average low temperature) are February and December (18.5°F).

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Average pressure in September
Buffalo Gap, SD

Average pressure in September - Buffalo Gap, SD
  • Average pressure in September: 29.93"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in September
Buffalo Gap, SD

Average wind speed in September - Buffalo Gap, SD
  • Average wind speed in September: 8.8mph

The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).

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Average humidity in September
Buffalo Gap, SD

Average humidity in September - Buffalo Gap, SD
  • Average humidity in September: 48%

The month with the highest relative humidity is January (75%).
The month with the lowest relative humidity is August (47%).

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Average rainfall in September
Buffalo Gap, SD

Average rainfall in September - Buffalo Gap, SD
  • Average rainfall in September: 1.14"

The wettest month (with the highest rainfall) is June (2.87").
The driest month (with the least rainfall) is January (0.39").

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Average rainfall days in September
Buffalo Gap, SD

Average rainfall days in September - Buffalo Gap, SD
  • Average rainfall days in September: 9.3 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is December (3.5 days).

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Average snowfall in September
Buffalo Gap, SD

Average snowfall in September - Buffalo Gap, SD
  • Average snowfall in September: 0.04"

The month with the highest snowfall is February (3.66").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in September
Buffalo Gap, SD

Average snowfall days in September - Buffalo Gap, SD
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is February (10.4 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
Buffalo Gap, SD

Average daylight in September / Average sunshine in September - Buffalo Gap, 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: 10h and 2min

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 48min).

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Average sunshine days in September
Buffalo Gap, SD

Average sunshine days in September - Buffalo Gap, SD
  • Average sunshine days in September: 17.8 days

The month with the most sunshine days is December (21.4 days).
The month with the least sunshine days is May (11.2 days).

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Average UV index in September
Buffalo Gap, SD

Average UV index in September - Buffalo Gap, 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, February, November and December (UV index 2).

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Average cloud cover in September
Buffalo Gap, SD

Average cloud cover in September - Buffalo Gap, SD
  • Average cloud cover in September: 19

The month with the most cloud cover is February (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 17).

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Average visibility in September
Buffalo Gap, SD

Average visibility in September - Buffalo Gap, 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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Buffalo Gap, South Dakota, USA

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