Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The arrival of September is marked by a minor reduction in average high-temperature, sliding from 82°F (27.8°C) in August to a still moderately hot 76.1°F (24.5°C). Dakota Dunes, during the nights of September, experiences an average temperature drop to a fresh 55°F (12.8°C).Humidity
In Dakota Dunes, the average relative humidity in September is 70%.Rainfall
In Dakota Dunes, in September, it is raining for 11.8 days, with typically 1.93" (49mm) of accumulated precipitation. In Dakota Dunes, during the entire year, the rain falls for 122 days and collects up to 21.61" (549mm) of precipitation.Snowfall
In Dakota Dunes, snow does not fall in June through September.Daylight
The average length of the day in September in Dakota Dunes, South Dakota, is 12h and 28min.On the first day of the month, sunrise is at 6:51 am and sunset at 7:59 pm. On the last day of September, in Dakota Dunes, sunrise is at 7:22 am and sunset at 7:08 pm CDT.
Sunshine
In Dakota Dunes, the average sunshine in September is 8.8h.UV index
The average daily maximum UV index in September in Dakota Dunes, South Dakota, is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 5 during September translates into these guidelines:
Make use of precautions - Suggestions to resist sunburn are communicated. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. 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.
Frequently asked questions
What are September temperatures in Dakota Dunes?
What is the average humidity in September in Dakota Dunes?
How much does it rain in Dakota Dunes in September?
When it does not snow in Dakota Dunes?
Does it snow in Dakota Dunes in September?
How many hours of daylight does Dakota Dunes have in September?
When is the sunrise / sunset in September in Dakota Dunes?
How many hours of sunshine does Dakota Dunes have in September?
What is the UV index reading in September in Dakota Dunes?
Average temperature in September
Dakota Dunes, SD
- Average high temperature in September: 76.1°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in September: 55°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).
Average pressure in September
Dakota Dunes, SD
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Dakota Dunes, SD
- Average wind speed in September: 9mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity in September
Dakota Dunes, SD
- Average humidity in September: 70%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (65%).
Average rainfall in September
Dakota Dunes, SD
- Average rainfall in September: 1.93"
The wettest months (with the highest rainfall) are May and June (3.03").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in September
Dakota Dunes, SD
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in September
Dakota Dunes, SD
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.95").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Dakota Dunes, SD
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Dakota Dunes, SD
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in September
Dakota Dunes, SD
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is June (9.7 days).
Average UV index in September
Dakota Dunes, SD
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Dakota Dunes, SD
- Average cloud cover in September: 28
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in September
Dakota Dunes, 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).
Dakota Dunes, South Dakota, USA
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