September weather forecast
Platte, SD

Weather in September

September, the first month of the autumn in Platte, is also a moderately hot month, with temperature in the range of an average low of 55.4°F (13°C) and an average high of 76.3°F (24.6°C).

Temperature

In September, the average high-temperature slightly decreases from a warm 85.1°F (29.5°C) in August to a still moderately hot 76.3°F (24.6°C). In Platte, in September, the average low-temperature is 55.4°F (13°C).

Humidity

In September, the average relative humidity in Platte is 63%.

Rainfall

In September, in Platte, the rain falls for 9.4 days. Throughout September, 1.02" (26mm) of precipitation is accumulated. In Platte, during the entire year, the rain falls for 104.1 days and collects up to 14.29" (363mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In September, the average length of the day in Platte, South Dakota, is 12h and 29min.
On the first day of the month, sunrise is at 6:59 am and sunset at 8:10 pm. On the last day of September, in Platte, sunrise is at 7:31 am and sunset at 7:18 pm CDT.

Sunshine

In Platte, the average sunshine in September is 8.9h.

UV index

In Platte, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 5 in September transform into the following instructions:
Take precautions - Protection against sunburn is recommended. 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 Platte?

In September, the average high-temperature is 76.3°F (24.6°C), and the average low-temperature is 55.4°F (13°C). The average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, in August is appraised at 91.4°F (33°C).

What is the average humidity in September in Platte?

The average relative humidity in September in Platte, South Dakota, is 63%.

How much does it rain in Platte in September?

In Platte, South Dakota, in September, it is raining for 9.4 days, with typically 1.02" (26mm) of accumulated precipitation.

When it does not snow in Platte?

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

Does it snow in Platte in September?

In Platte, South Dakota, in September, it doesn't snow. In October, it regularly snows.

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

The average day length in September in Platte, South Dakota, is 12h and 29min.

When is the sunrise / sunset in September in Platte?

On the first day of September in Platte, sunrise is at 6:59 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:18 pm CDT.

How long on average sun shines in September in Platte?

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

What is the UV index intensity in September in Platte?

The average daily maximum UV index in September in Platte, South Dakota, is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe 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
Platte, SD

Average temperature in September - Platte, SD
  • Average high temperature in September: 76.3°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in September: 55.4°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).

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Average pressure in September
Platte, SD

Average pressure in September - Platte, 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).

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Average wind speed in September
Platte, SD

Average wind speed in September - Platte, SD
  • Average wind speed in September: 9.4mph

The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).

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Average humidity in September
Platte, SD

Average humidity in September - Platte, SD
  • Average humidity in September: 63%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (62%).

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Average rainfall in September
Platte, SD

Average rainfall in September - Platte, SD
  • Average rainfall in September: 1.02"

The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is February (0.31").

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Average rainfall days in September
Platte, SD

Average rainfall days in September - Platte, SD
  • Average rainfall days in September: 9.4 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (2.9 days).

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Average snowfall in September
Platte, SD

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

The months with the highest snowfall are January and March (1.93").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Platte, SD

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

The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Platte, SD
  • Average daylight in September: 12h and 29min

The month with the longest days is June (Average daylight: 15h and 21min).
The month with the shortest days is December (Average daylight: 9h and 2min).

  • Average sunshine in September: 8h and 54min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

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Average sunshine days in September
Platte, SD

Average sunshine days in September - Platte, SD
  • Average sunshine days in September: 18.4 days

The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is June (12.3 days).

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Average UV index in September
Platte, SD

Average UV index in September - Platte, 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).

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Average cloud cover in September
Platte, SD

Average cloud cover in September - Platte, SD
  • Average cloud cover in September: 24

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 23).

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Average visibility in September
Platte, SD

Average visibility in September - Platte, 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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