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
Prairie City's progression into September involves a drop in the average high-temperature, receding from a warm 82.4°F (28°C) in August to an agreeable 73°F (22.8°C). Prairie City's September nights cool down to an average low-temperature of 53.4°F (11.9°C).Humidity
In Prairie City, the average relative humidity in September is 51%.Rainfall
In Prairie City, in September, during 8.1 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. Throughout the year, there are 104.8 rainfall days, and 15.2" (386mm) of precipitation is accumulated.Snowfall
In Prairie City, snow does not fall in July through September.Daylight
In September, the average length of the day is 12h and 31min.On the first day of September, sunrise is at 6:13 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:32 pm MDT.
Sunshine
The average sunshine in September is 9.7h.UV index
The average daily maximum UV index in September in Prairie City is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Exercise prevention - Warding off sunburn is urged. To guard against the harmful effects of the Sun, minimize exposure during midday. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September in Prairie City?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Prairie City have in September?
What is the UV index intensity in September in Prairie City?
Average temperature in September
Prairie City, SD
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in September: 53.4°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure in September
Prairie City, SD
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Prairie City, SD
- Average wind speed in September: 10.7mph
The windiest months (with the highest average wind speed) are January and October (11.7mph).
The calmest month (with the lowest average wind speed) is August (9.7mph).
Average humidity in September
Prairie City, SD
- Average humidity in September: 51%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (50%).
Average rainfall in September
Prairie City, SD
- Average rainfall in September: 1.14"
The wettest month (with the highest rainfall) is May (2.48").
The driest months (with the least rainfall) are January and November (0.51").
Average rainfall days in September
Prairie City, SD
- Average rainfall days in September: 8.1 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is November (3 days).
Average snowfall in September
Prairie City, SD
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.84").
The months with the least snowfall are July, August and September (0").
Average snowfall days in September
Prairie City, SD
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (13.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Prairie City, SD
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Prairie City, SD
- Average sunshine days in September: 19 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is April (11.8 days).
Average UV index in September
Prairie City, SD
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Prairie City, SD
- Average cloud cover in September: 23
The months with the most cloud cover are January and February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 20).
Average visibility in September
Prairie City, 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).
Prairie City, South Dakota, USA
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