September weather forecastSpain, SD
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Spain, South Dakota, with an average temperature fluctuating between 51.3°F (10.7°C) and 71.6°F (22°C).Temperature
With the onset of September, Spain experiences a modest temperature adjustment, with the average high-temperature gently receding from a moderately hot 80.1°F (26.7°C) in August to an agreeable 71.6°F (22°C). In Spain, the average low-temperature during the month of September is a cool 51.3°F (10.7°C).Humidity
With an average relative humidity of 66%, September is the least humid month.Rainfall
In Spain, South Dakota, in September, it is raining for 10.1 days, with typically 1.57" (40mm) of accumulated precipitation. In Spain, during the entire year, the rain falls for 112.9 days and collects up to 22.09" (561mm) of precipitation.Snowfall
In Spain, snow does not fall in June through September.Daylight
The average length of the day in September in Spain is 12h and 31min.On the first day of the month, sunrise is at 6:53 am and sunset at 8:08 pm. On the last day of September, sunrise is at 7:29 am and sunset at 7:12 pm CDT.
Sunshine
In September, the average sunshine in Spain is 8.8h.UV index
The average daily maximum UV index in September in Spain, South Dakota, is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Spain, SD
- Average high temperature in September: 71.6°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (18.9°F).
- Average low temperature in September: 51.3°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (5°F).
Average pressure in September
Spain, SD
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Spain, SD
- Average wind speed in September: 10.3mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is July (8.7mph).
Average humidity in September
Spain, SD
- Average humidity in September: 66%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is September (66%).
Average rainfall in September
Spain, SD
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is July (3.58").
The driest month (with the least rainfall) is November (0.63").
Average rainfall days in September
Spain, SD
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in September
Spain, SD
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Spain, SD
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Spain, 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 48min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Spain, SD
- Average sunshine days in September: 18.5 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in September
Spain, 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, November and December (UV index 1).
Average cloud cover in September
Spain, SD
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in September
Spain, SD
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
