September weather forecast
Carthage, SD

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Carthage, South Dakota, with an average temperature fluctuating between 75.7°F (24.3°C) and 54.5°F (12.5°C).

Temperature

The start of September signals a gentle decrease in the average high-temperature, transitioning from a warm 84.2°F (29°C) in August to a still moderately hot 75.7°F (24.3°C). During the month of September, an average low-temperature of 54.5°F (12.5°C) is recorded in Carthage.

Humidity

September is the least humid month, with an average relative humidity of 62%.

Rainfall

In Carthage, South Dakota, in September, it is raining for 9.8 days, with typically 1.38" (35mm) of accumulated precipitation. Throughout the year, in Carthage, there are 101.8 rainfall days, and 18.19" (462mm) of precipitation is accumulated.

Snowfall

In Carthage, snow does not fall in May through September.

Daylight

In September, the average length of the day is 12h and 30min.
On the first day of the month, sunrise is at 6:54 am and sunset at 8:06 pm. On the last day of September, sunrise is at 7:28 am and sunset at 7:12 pm CDT.

Sunshine

In Carthage, South Dakota, the average sunshine in September is 8.9h.

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 unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 4 in September translates into this advice:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September in Carthage?

The high-temperature, in September, in Carthage, records 75.7°F (24.3°C), while the low-temperature is 54.5°F (12.5°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 89.6°F (32°C).

What is the least humid month in Carthage?

September is the least humid month in Carthage, with an average relative humidity of 62%.

What is the average humidity in September in Carthage?

In September, the average relative humidity in Carthage, South Dakota, is 62%.

How much does it rain in Carthage in September?

In Carthage, South Dakota, in September, during 9.8 rainfall days, 1.38" (35mm) of precipitation is typically accumulated.

When it does not snow in Carthage?

May through September are months without snowfall in Carthage, South Dakota.

Does it snow in Carthage in September?

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

What is the average length of the day in September in Carthage?

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

When is the sunrise / sunset in September in Carthage?

In September, on the first day of the month, sunrise is at 6:54 am and sunset at 8:06 pm. On the last day of the month, in Carthage, sunrise is at 7:28 am and sunset at 7:12 pm CDT.

How many hours of sunshine does Carthage have in September?

In Carthage, the average sunshine duration in September is 8.9h.

What is the UV index intensity in September in Carthage?

In Carthage, South Dakota, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.
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
Carthage, SD

Average temperature in September - Carthage, SD
  • Average high temperature in September: 75.7°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (23.2°F).

  • Average low temperature in September: 54.5°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).

Average pressure in September
Carthage, SD

Average pressure in September - Carthage, SD
  • Average pressure in September: 29.96"Hg

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

Average wind speed in September
Carthage, SD

Average wind speed in September - Carthage, SD
  • Average wind speed in September: 9.7mph

The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (8.6mph).

Average humidity in September
Carthage, SD

Average humidity in September - Carthage, SD
  • Average humidity in September: 62%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is September (62%).

Average rainfall in September
Carthage, SD

Average rainfall in September - Carthage, SD
  • Average rainfall in September: 1.38"

The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.55").

Average rainfall days in September
Carthage, SD

Average rainfall days in September - Carthage, SD
  • Average rainfall days in September: 9.8 days

The month with the highest number of rainy days is June (15.2 days).
The month with the least rainy days is February (1.8 days).

Average snowfall in September
Carthage, SD

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

The month with the highest snowfall is February (3.54").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Carthage, SD

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

The month with the highest number of snowfall days is December (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Carthage, 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: 8h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in September
Carthage, SD

Average sunshine days in September - Carthage, SD
  • Average sunshine days in September: 17.5 days

The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is June (12.3 days).

Average UV index in September
Carthage, SD

Average UV index in September - Carthage, 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 and November (UV index 1).

Average cloud cover in September
Carthage, SD

Average cloud cover in September - Carthage, SD
  • Average cloud cover in September: 26

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 22).

Average visibility in September
Carthage, SD

Average visibility in September - Carthage, SD
  • Average visibility in September: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

Carthage, South Dakota, USA

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