September weather forecastRosholt, SD
September
Weather in September
September, the first month of the autumn in Rosholt, is also an agreeable month, with temperature in the range of an average high of 73.2°F (22.9°C) and an average low of 52.9°F (11.6°C).Temperature
The arrival of September suggests a slight decrease in the average high-temperature, moving from a moderately hot 81.3°F (27.4°C) in August to an agreeable 73.2°F (22.9°C). In Rosholt, the nighttime temperature averages to a cool 52.9°F (11.6°C) during September.Humidity
September is the least humid month in Rosholt, with an average relative humidity of 65%.Rainfall
In September, the rain falls for 8.9 days. Throughout September, 1.54" (39mm) of precipitation is accumulated. Throughout the year, in Rosholt, there are 102 rainfall days, and 19.17" (487mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Rosholt, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:48 am and sunset at 8:04 pm. On the last day of September, in Rosholt, South Dakota, sunrise is at 7:25 am and sunset at 7:08 pm CDT.
Sunshine
In September, the average sunshine in Rosholt is 8.9h.UV index
In Rosholt, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rosholt, SD
- Average high temperature in September: 73.2°F
The warmest months (with the highest average high temperature) are July and August (81.3°F).
The month with the lowest average high temperature is January (18.7°F).
- Average low temperature in September: 52.9°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (4.8°F).
Average pressure in September
Rosholt, SD
- Average pressure in September: 29.97"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Rosholt, SD
- Average wind speed in September: 9.3mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in September
Rosholt, 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
Rosholt, SD
- Average rainfall in September: 1.54"
The wettest months (with the highest rainfall) are June and July (3.03").
The driest month (with the least rainfall) is February (0.55").
Average rainfall days in September
Rosholt, SD
- Average rainfall days in September: 8.9 days
The month with the highest number of rainy days is June (15.4 days).
The month with the least rainy days is February (2 days).
Average snowfall in September
Rosholt, SD
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Rosholt, SD
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rosholt, 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 54min
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 24min).
Average sunshine days in September
Rosholt, SD
- Average sunshine days in September: 19.5 days
The month with the most sunshine days is September (19.5 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in September
Rosholt, SD
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Rosholt, SD
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Rosholt, SD
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
