Springfield
Missouri, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Springfield, MO

A city square in downtown Springfield, Missouri, with a clean water fountain
A city square in downtown Springfield, Missouri, with a clean water fountain
September, the first month of the autumn, in Springfield, is also a moderately hot month, with average temperature fluctuating between 80.2°F (26.8°C) and 57.7°F (14.3°C).

Temperature

In September, the average high-temperature slightly decreases, from a hot 89.1°F (31.7°C) in August, to a warm 80.2°F (26.8°C). In Springfield, in September, the average low-temperature is 57.7°F (14.3°C).

Humidity

The most humid month is September, with an average relative humidity of 72.9%.

Rainfall

In Springfield, during 7.6 rainfall days, 4.6" (117.1mm) of precipitation is typically accumulated. Throughout the year, there are 111.3 rainfall days, and 45.6" (1157.4mm) of precipitation is accumulated.

Snowfall

Throughout the year, in Springfield, 17" (431.9mm) of snow is accumulated.

Daylight

The average length of the day in Springfield is 12.4h.

Sunshine

In September, the average sunshine in Springfield is 7.9h.

UV index

In Springfield, Missouri, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to the Sun's UV rays for the ordinary person.
In September, the average maximum UV index of 7 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in September in Springfield?

In Springfield, Missouri, in September, the average high-temperature is 80.2°F (26.8°C), and the average low-temperature is 57.7°F (14.3°C).

What is the most humid month in Springfield?

With an average relative humidity of 72.9%, September is the most humid month in Springfield.

What is the average humidity in September in Springfield?

In September, the average relative humidity is 72.9%.

How many days does it rain in September in Springfield?

In Springfield, in September, during 7.6 rainfall days, 4.6" (117.1mm) of precipitation is typically accumulated.

What is the average length of the day in September in Springfield?

In Springfield, the average length of the day in September is 12.4h.

How many hours of sunshine does Springfield have in September?

In Springfield, Missouri, the average sunshine in September is 7.9h.

How high is the UV index in September in Springfield?

The average daily maximum UV index in September in Springfield is 7. A UV Index of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV radiation.
Average temperature in September - Springfield, MO
  • Average high temperature in September: 80.3°F

The warmest month (with the highest average high temperature) is August (89°F).
The month with the lowest average high temperature is January (42.9°F).

  • Average low temperature in September: 57.7°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (22.4°F).

Average humidity in September - Springfield, MO
  • Average humidity in September: 72.9%

The month with the highest relative humidity is September (72.9%).
The month with the lowest relative humidity is April (64.5%).

Average rainfall in September - Springfield, MO
  • Average rainfall in September: 4.6"

The wettest month (with the highest rainfall) is May (5.1").
Driest months (with the lowest rainfall) are January and February (2.5").

Average rainfall days in September - Springfield, MO
  • Average rainfall days in September: 7.6 days

The month with the highest number of rainy days is May (12 days).
The month with the lowest number of rainy days is September (7.6 days).

Average snowfall in September - Springfield, MO
  • Average snowfall in September: 0"

The month with the highest snowfall is January (5.4").
Months with the lowest snowfall are April, May, 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 January (3.5 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

Average daylight in September / Average sunshine in September - Springfield, MO
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.7h).
The month with shortest days is December (Average daylight: 9.6h).

  • Average sunshine in September: 7.9h

The month with most sunshine is July (Average sunshine: 10.4h).
The month with least sunshine is December (Average sunshine: 4.7h).

Average UV index in September - Springfield, MO
  • Average UV index in September: 7

Months with the highest UV index are June and July (UV index 10).
Months with the lowest UV index are January and December (UV index 2).