September weather forecastSpringfield, MO

September
Weather in September
September brings a fresh and noticeable change in weather, ushering in the beginnings of Autumn in Springfield. Although cooler than August, September sees a daytime temperature high of 80.1°F (26.7°C). The shift in season fills the city with the scent of turning leaves, apple harvests, and pumpkin displays. It's a calming change from the strong sun of the summer months.Temperature
As August makes way for September, Springfield's average high-temperature eases from a tropical 87.1°F (30.6°C) to a warm 80.1°F (26.7°C). Springfield encounters a steady low-temperature average of 59.9°F (15.5°C) throughout the month of September.Humidity
In September, the average relative humidity is 73%.Rainfall
In Springfield, in September, it is raining for 14.3 days, with typically 2.44" (62mm) of accumulated precipitation. Throughout the year, in Springfield, there are 167.3 rainfall days, and 37.91" (963mm) of precipitation is accumulated.Snowfall
In Springfield, snow does not fall in June through October.Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 6:44 am and sunset at 7:41 pm. On the last day of September, sunrise is at 7:08 am and sunset at 6:57 pm CDT.
Sunshine
In September, the average sunshine in Springfield is 9.5h.UV index
In Springfield, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The daily maximum UV index of 5 in September interprets into the following advice:
Take precautions - Protection against sun damage is advised. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. 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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Springfield, MO
- Average high temperature in September: 80.1°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in September: 59.9°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in September
Springfield, MO
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Springfield, MO
- Average wind speed in September: 6.8mph
The windiest months (with the highest average wind speed) are January and March (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in September
Springfield, MO
- Average humidity in September: 73%
The months with the highest relative humidity are March and May (77%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Springfield, MO
- Average rainfall in September: 2.44"
The wettest month (with the highest rainfall) is May (5.63").
The driest month (with the least rainfall) is January (1.73").
Average rainfall days in September
Springfield, MO
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in September
Springfield, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.11").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Springfield, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Springfield, MO
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in September
Springfield, MO
- Average sunshine days in September: 13 days
The month with the most sunshine days is December (18.6 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in September
Springfield, MO
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Springfield, MO
- Average cloud cover in September: 29
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Springfield, MO
- 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).





