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 shift from August to September coincides with a small decrease in the average high-temperature, down to a still warm 74.7°F (23.7°C) from a moderately hot 81.7°F (27.6°C). Viborg's average low-temperature in September is measured at a cool 54°F (12.2°C).Humidity
In September, the average relative humidity is 70%.Rainfall
In Viborg, during September, the rain falls for 10.5 days and regularly aggregates up to 1.61" (41mm) of precipitation. Throughout the year, in Viborg, there are 111.7 rainfall days, and 17.76" (451mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Viborg.Daylight
In Viborg, South Dakota, the average length of the day in September is 12h and 29min.On the first day of September in Viborg, sunrise is at 6:53 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:10 pm CDT.
Sunshine
The average sunshine in September is 8.8h.UV index
The average daily maximum UV index in September in Viborg is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Frequently asked questions
What is the average September temperature in Viborg?
What is the average humidity in September in Viborg?
How many days does it rain in September in Viborg?
When it does not snow in Viborg?
Does it snow in Viborg in September?
How many hours of daylight does Viborg have in September?
When are sunrise and sunset in September in Viborg?
How long on average sun shines in September in Viborg?
What is the UV index reading in September in Viborg?
Average temperature in September
Viborg, SD
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in September: 54°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in September
Viborg, 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 (29.85"Hg).
Average wind speed in September
Viborg, SD
- Average wind speed in September: 9.3mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).
Average humidity in September
Viborg, SD
- Average humidity in September: 70%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (66%).
Average rainfall in September
Viborg, SD
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is June (2.91").
The driest months (with the least rainfall) are January, February and November (0.47").
Average rainfall days in September
Viborg, SD
- Average rainfall days in September: 10.5 days
The months with the highest number of rainy days are May and June (16 days).
The month with the least rainy days is February (2.5 days).
Average snowfall in September
Viborg, SD
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.64").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Viborg, SD
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (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
Viborg, SD
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
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 12min).
Average sunshine days in September
Viborg, SD
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (11.5 days).
Average UV index in September
Viborg, SD
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Viborg, SD
- Average cloud cover in September: 28
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in September
Viborg, 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).
Viborg, South Dakota, USA
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