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 advent of September brings a slight shift in average high-temperature, moving from 84°F (28.9°C) in August to a still moderately hot 75.4°F (24.1°C). Throughout September, Orient witnesses a consistent average low-temperature of 54.5°F (12.5°C).Humidity
September is the least humid month, with an average relative humidity of 60%.Rainfall
In Orient, in September, it is raining for 9 days, with typically 1.1" (28mm) of accumulated precipitation. In Orient, during the entire year, the rain falls for 97.3 days and collects up to 16.73" (425mm) of precipitation.Snowfall
In Orient, snow does not fall in June through September.Daylight
In Orient, the average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 6:59 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:18 pm CDT.
Sunshine
The average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the least humid month in Orient?
What is the average humidity in September in Orient?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Orient have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Orient have in September?
How high is the UV index in September?
Average temperature in September
Orient, SD
- Average high temperature in September: 75.4°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in September: 54.5°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).
Average pressure in September
Orient, SD
- Average pressure in September: 29.95"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
Orient, SD
- Average wind speed in September: 10.3mph
The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).
Average humidity in September
Orient, SD
- Average humidity in September: 60%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is September (60%).
Average rainfall in September
Orient, SD
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is July (3.07").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in September
Orient, SD
- Average rainfall days in September: 9 days
The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in September
Orient, SD
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.21").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Orient, SD
- Average snowfall days in September: 0.1 days
The months with the highest number of snowfall days are January and February (10.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Orient, 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 4min
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 6min).
Average sunshine days in September
Orient, SD
- Average sunshine days in September: 18.9 days
The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in September
Orient, SD
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in September
Orient, SD
- Average cloud cover in September: 26
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 24).
Average visibility in September
Orient, 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).
Orient, South Dakota, USA
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