September weather forecastDahlberg, SD
September
Weather in September
September, the first month of the autumn in Dahlberg, is also an agreeable month, with an average temperature fluctuating between 52°F (11.1°C) and 72°F (22.2°C).Temperature
Dahlberg, South Dakota, in September undergoes a slight reduction in the average high-temperature, shifting from August's warm 80.4°F (26.9°C) to an agreeable 72°F (22.2°C). During September, Dahlberg witnesses a consistent average low-temperature of 52°F (11.1°C).Humidity
September is the least humid month, with an average relative humidity of 65%.Rainfall
In September, the rain falls for 9.9 days. Throughout September, 1.73" (44mm) of precipitation is accumulated. In Dahlberg, during the entire year, the rain falls for 107.9 days and collects up to 20.63" (524mm) of precipitation.Snowfall
In Dahlberg, snow does not fall in June through September.Daylight
In Dahlberg, South Dakota, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:50 am and sunset at 8:06 pm. On the last day of September, in Dahlberg, sunrise is at 7:26 am and sunset at 7:10 pm CDT.
Sunshine
In September, the average sunshine in Dahlberg is 8.8h.UV index
The average daily maximum UV index in September in Dahlberg is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 4 during September leads to these advisories:
Guard yourself - An obligation to protect skin and eyes from harm exists. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dahlberg, SD
- Average high temperature in September: 72°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (19°F).
- Average low temperature in September: 52°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure in September
Dahlberg, SD
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Dahlberg, SD
- Average wind speed in September: 9.6mph
The windiest months (with the highest average wind speed) are April and October (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (8.3mph).
Average humidity in September
Dahlberg, SD
- Average humidity in September: 65%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is September (65%).
Average rainfall in September
Dahlberg, SD
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in September
Dahlberg, SD
- Average rainfall days in September: 9.9 days
The month with the highest number of rainy days is June (17.6 days).
The month with the least rainy days is February (1.6 days).
Average snowfall in September
Dahlberg, SD
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Dahlberg, SD
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Dahlberg, SD
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Dahlberg, SD
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in September
Dahlberg, 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 December (UV index 1).
Average cloud cover in September
Dahlberg, SD
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 25).
Average visibility in September
Dahlberg, 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).
