September weather forecast
Blunt, SD

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Weather in September

September, the first month of the autumn in Blunt, is still a warm month, with an average temperature ranging between min 57.4°F (14.1°C) and max 76.8°F (24.9°C).

Temperature

The average high-temperature drops in September, from August's hot 86°F (30°C) to a moderately hot 76.8°F (24.9°C). September sees the temperature falling to a mean low of 57.4°F (14.1°C).

Humidity

August and September, with an average relative humidity of 52%, are the least humid months.

Rainfall

In Blunt, in September, it is raining for 8.9 days, with typically 0.67" (17mm) of accumulated precipitation. In Blunt, during the entire year, the rain falls for 98.5 days and collects up to 13.7" (348mm) of precipitation.

Snowfall

In Blunt, snow does not fall in June through September.

Daylight

The average length of the day in September in Blunt is 12h and 30min.
On the first day of the month, sunrise is at 7:03 am and sunset at 8:15 pm. On the last day of September, sunrise is at 7:37 am and sunset at 7:21 pm CDT.

Sunshine

In Blunt, the average sunshine in September is 9h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum UV index of 5 in September translates into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Updated: Jun 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Blunt in September?

An average high-temperature, in September, in Blunt, is 76.8°F (24.9°C) and the average low-temperature is 57.4°F (14.1°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, in August is calculated to be 87.8°F (31°C).

What is the least humid month?

The months with the lowest humidity are August and September, with an average relative humidity of 52%.

What is the average humidity in September?

In September, the average relative humidity is 52%.

How much does it rain in September?

In Blunt, in September, during 8.9 rainfall days, 0.67" (17mm) of precipitation is typically accumulated.

When it does not snow?

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

Does it snow in September?

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

How many hours of daylight does Blunt have in September?

In Blunt, the average day length in September is 12h and 30min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 7:03 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 7:21 pm CDT.

How long on average sun shines in September?

In September, the average sunshine duration is 9h.

What is the UV index intensity in September?

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health threat from 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
Blunt, SD

Average temperature in September - Blunt, SD
  • Average high temperature in September: 76.8°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (26.2°F).

  • Average low temperature in September: 57.4°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).

Average pressure in September
Blunt, SD

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in September
Blunt, SD

Average wind speed in September - Blunt, SD
  • Average wind speed in September: 11.1mph

The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest months (with the lowest average wind speed) are February and August (9.9mph).

Average humidity in September
Blunt, SD

Average humidity in September - Blunt, SD
  • Average humidity in September: 52%

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are August and September (52%).

Average rainfall in September
Blunt, SD

Average rainfall in September - Blunt, SD
  • Average rainfall in September: 0.67"

The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is January (0.35").

Average rainfall days in September
Blunt, SD

Average rainfall days in September - Blunt, SD
  • Average rainfall days in September: 8.9 days

The month with the highest number of rainy days is June (14.2 days).
The month with the least rainy days is February (2.4 days).

Average snowfall in September
Blunt, SD

Average snowfall in September - Blunt, SD
  • Average snowfall in September: 0"

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

Average snowfall days in September
Blunt, SD

Average snowfall days in September - Blunt, SD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (10 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Blunt, 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: 9h and 0min

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 36min).

Average sunshine days in September
Blunt, SD

Average sunshine days in September - Blunt, SD
  • Average sunshine days in September: 18.8 days

The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is June (13.7 days).

Average UV index in September
Blunt, SD

Average UV index in September - Blunt, SD
  • Average UV index in September: 5

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February and December (UV index 1).

Average cloud cover in September
Blunt, SD

Average cloud cover in September - Blunt, SD
  • Average cloud cover in September: 21

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).

Average visibility in September
Blunt, SD

Average visibility in September - Blunt, 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).

Blunt, South Dakota, USA

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