September weather forecast
Eagle Butte, SD

Weather in September

September, the first month of the autumn in Eagle Butte, is still a warm month, with temperature in the range of an average high of 75.4°F (24.1°C) and an average low of 56.3°F (13.5°C).

Temperature

In Eagle Butte, the average high-temperature in September drops from a warm 84.7°F (29.3°C) in August to a still moderately hot 75.4°F (24.1°C). In September, in Eagle Butte, the average low-temperature is 56.3°F (13.5°C).

Humidity

The months with the lowest humidity are August and September, with an average relative humidity of 49%.

Rainfall

In Eagle Butte, during September, the rain falls for 7.9 days and regularly aggregates up to 0.87" (22mm) of precipitation. In Eagle Butte, during the entire year, the rain falls for 99.7 days and collects up to 16.06" (408mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Eagle Butte, the average length of the day in September is 12h and 31min.
On the first day of the month, sunrise is at 6:07 am and sunset at 7:22 pm. On the last day of September, sunrise is at 6:42 am and sunset at 6:27 pm MDT.

Sunshine

In Eagle Butte, South Dakota, the average sunshine in September is 9.7h.

UV index

In Eagle Butte, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 4 in September interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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.
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FAQ

What is the temperature in September in Eagle Butte?

The average high-temperature, in September, in Eagle Butte, is 75.4°F (24.1°C), while the average low-temperature is 56.3°F (13.5°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in August is computed to be 86°F (30°C).

What are the least humid months in Eagle Butte?

The months with the lowest humidity in Eagle Butte, South Dakota, are August and September, with an average relative humidity of 49%.

What is the average humidity in September in Eagle Butte?

In Eagle Butte, the average relative humidity in September is 49%.

How much does it rain in Eagle Butte in September?

In September, in Eagle Butte, the rain falls for 7.9 days. Throughout September, 0.87" (22mm) of precipitation is accumulated.

When it does not snow in Eagle Butte?

In Eagle Butte, South Dakota, snow does not fall in June through September.

Does it snow in Eagle Butte in September?

In Eagle Butte, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Eagle Butte?

The average day length in September in Eagle Butte is 12h and 31min.

What time are sunrise and sunset in September in Eagle Butte?

On the first day of September in Eagle Butte, sunrise is at 6:07 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:27 pm MDT.

How many hours of sunshine does Eagle Butte have in September?

The average sunshine duration in September in Eagle Butte is 9.7h.

What is the UV index reading in September in Eagle Butte?

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Eagle Butte, SD

Average temperature in September - Eagle Butte, SD
  • Average high temperature in September: 75.4°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in September: 56.3°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).

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Average pressure in September
Eagle Butte, SD

Average pressure in September - Eagle Butte, SD
  • Average pressure in September: 29.94"Hg

The months with the highest atmospheric pressure are January and February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in September
Eagle Butte, SD

Average wind speed in September - Eagle Butte, SD
  • Average wind speed in September: 11.3mph

The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest months (with the lowest average wind speed) are February and August (10.4mph).

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Average humidity in September
Eagle Butte, SD

Average humidity in September - Eagle Butte, SD
  • Average humidity in September: 49%

The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are August and September (49%).

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Average rainfall in September
Eagle Butte, SD

Average rainfall in September - Eagle Butte, SD
  • Average rainfall in September: 0.87"

The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is January (0.51").

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Average rainfall days in September
Eagle Butte, SD

Average rainfall days in September - Eagle Butte, SD
  • Average rainfall days in September: 7.9 days

The month with the highest number of rainy days is May (14.7 days).
The months with the least rainy days are January and February (3.3 days).

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Average snowfall in September
Eagle Butte, SD

Average snowfall in September - Eagle Butte, SD
  • Average snowfall in September: 0"

The month with the highest snowfall is February (5.12").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Eagle Butte, SD

Average snowfall days in September - Eagle Butte, SD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (12.3 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
Eagle Butte, SD

Average daylight in September / Average sunshine in September - Eagle Butte, SD
  • Average daylight in September: 12h and 31min

The month with the longest days is June (Average daylight: 15h and 34min).
The month with the shortest days is December (Average daylight: 8h and 50min).

  • Average sunshine in September: 9h and 42min

The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

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Average sunshine days in September
Eagle Butte, SD

Average sunshine days in September - Eagle Butte, SD
  • Average sunshine days in September: 20.4 days

The month with the most sunshine days is September (20.4 days).
The month with the least sunshine days is April (12.4 days).

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Average UV index in September
Eagle Butte, SD

Average UV index in September - Eagle Butte, 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
Eagle Butte, SD

Average cloud cover in September - Eagle Butte, SD
  • Average cloud cover in September: 22

The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 19).

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Average visibility in September
Eagle Butte, SD

Average visibility in September - Eagle Butte, 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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