September weather forecast
Springfield, MO

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A city square in downtown Springfield, Missouri, with a clean water fountain
A city square in downtown Springfield, Missouri, with a clean water fountain

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.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures in Springfield?

The high-temperature, in September, in Springfield, is 80.1°F (26.7°C), while the low-temperature averages to 59.9°F (15.5°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, in August is evaluated at 98.6°F (37°C).

What is the average humidity in September in Springfield?

In September, the average relative humidity in Springfield, Missouri, is 73%.

How many days does it rain in September in Springfield?

In Springfield, in September, during 14.3 rainfall days, 2.44" (62mm) of precipitation is typically accumulated.

When it does not snow in Springfield?

In Springfield, Missouri, snow does not fall in June through October.

How many hours of daylight does Springfield have in September?

In Springfield, Missouri, the average day length in September is 12h and 25min.

When are sunrise and sunset in September in Springfield?

In September, on the first day of the month, sunrise is at 6:44 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:57 pm CDT.

How many hours of sunshine does Springfield have in September?

In September, the average sunshine duration is 9.5h.

How high is the UV index in September in Springfield?

In September, the average daily maximum UV index in Springfield is 5. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Springfield, MO

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in September - Springfield, MO
  • Average daylight in September: 12h and 2min

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 3min

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 - 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 - 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 - 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 - 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).

Springfield, Missouri, USA

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