September weather forecast
Parkston, SD

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Parkston, South Dakota, with an average temperature ranging between min 55.2°F (12.9°C) and max 76.3°F (24.6°C).

Temperature

September ushers in a minute temperature change, with average high-temperatures reducing from August's 84.4°F (29.1°C) to a still warm 76.3°F (24.6°C). Parkston usually reports an average low-temperature of 55.2°F (12.9°C) during the month of September.

Humidity

In September, the average relative humidity is 64%.

Rainfall

In Parkston, in September, it is raining for 11.7 days, with typically 1.5" (38mm) of accumulated precipitation. In Parkston, during the entire year, the rain falls for 106.8 days and collects up to 19.29" (490mm) of precipitation.

Snowfall

May through September are months without snowfall in Parkston.

Daylight

In September, the average length of the day is 12h and 29min.
On the first day of September, sunrise is at 6:56 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:14 pm CDT.

Sunshine

In September, the average sunshine is 8.8h.

UV index

In Parkston, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 5 in September translates into this advice:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Around midday, solar radiation is most harmful; hence, exposure should be limited. Opt for tightly woven and loose clothing to enhance protection from the Sun.

Frequently asked questions

What is the temperature in September?

During September, Parkston experiences an average high-temperature of 76.3°F (24.6°C) and a low-temperature of 55.2°F (12.9°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is evaluated at 89.6°F (32°C).

What is the average humidity in September?

The average relative humidity in September is 64%.

How many days does it rain in September?

In September, the rain falls for 11.7 days. Throughout September, 1.5" (38mm) of precipitation is accumulated.

When it does not snow?

In Parkston, South Dakota, snow does not fall in May through September.

Does it snow in September?

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

What is the average length of the day in September?

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

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:56 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:14 pm CDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.8h.

How high is the UV index 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 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
Parkston, SD

Average temperature in September - Parkston, SD
  • Average high temperature in September: 76.3°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 (26.2°F).

  • Average low temperature in September: 55.2°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).

Average pressure in September
Parkston, SD

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in September
Parkston, SD

Average wind speed in September - Parkston, SD
  • Average wind speed in September: 9.6mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).

Average humidity in September
Parkston, SD

Average humidity in September - Parkston, SD
  • Average humidity in September: 64%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (63%).

Average rainfall in September
Parkston, SD

Average rainfall in September - Parkston, SD
  • Average rainfall in September: 1.5"

The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is February (0.51").

Average rainfall days in September
Parkston, SD

Average rainfall days in September - Parkston, SD
  • Average rainfall days in September: 11.7 days

The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is January (2.5 days).

Average snowfall in September
Parkston, SD

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

The month with the highest snowfall is December (2.56").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Parkston, SD

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

The month with the highest number of snowfall days is December (7.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in September
Parkston, SD

Average sunshine days in September - Parkston, SD
  • Average sunshine days in September: 16.6 days

The month with the most sunshine days is November (22.8 days).
The month with the least sunshine days is June (11.8 days).

Average UV index in September
Parkston, SD

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

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).

Average cloud cover in September
Parkston, SD

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

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 23).

Average visibility in September
Parkston, SD

Average visibility in September - Parkston, 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).

Parkston, South Dakota, USA

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