September weather forecast and climate
Jefferson City, MO

The scenic view of the State Capitol building in Jefferson City, Missouri, surrounded by a beautiful park, reflected in a pool of water nearby
The scenic view of the State Capitol building in Jefferson City, Missouri, surrounded by a beautiful park, reflected in a pool of water nearby

What is the temperature in September in Jefferson City?

In September, the average high-temperature is 79.9°F (26.6°C), and the average low-temperature is 55.9°F (13.3°C).

How many days does it rain in September in Jefferson City?

In September, the rain falls for 8 days. Throughout September, 4.1" (105.4mm) of precipitation is accumulated.
Average temperature in September - Jefferson City, MO
  • Average high temperature in September: 26.6°C

The warmest month (with the highest average high temperature) is July (31.3°C).
The month with the lowest average high temperature is January (4.4°C).

  • Average low temperature in September: 13.3°C

The month with the highest average low temperature is July (19.6°C).
The coldest month (with the lowest average low temperature) is January (-6.7°C).

Average rainfall in September - Jefferson City, MO
  • Average rainfall in September: 105.4mm

The wettest month (with the highest rainfall) is May (131.6mm).
The driest month (with the lowest rainfall) is January (49mm).

Average rainfall days in September - Jefferson City, MO
  • Average rainfall days in September: 8 days

The month with the highest number of rainy days is May (12 days).
The month with the lowest number of rainy days is January (7 days).

Average snowfall in September - Jefferson City, MO
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (121.9mm).
Months with the lowest snowfall are May, June, July, August, September and October (0mm).

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

The month with the longest days is June (Average daylight: 14.8h).
The month with shortest days is December (Average daylight: 9.5h).

  • Average sunshine in September: 8h

Months with most sunshine are June and July (Average sunshine: 10h).
Months with least sunshine are January, November and December (Average sunshine: 5).

Average UV index in September - Jefferson City, MO
  • Average UV index in September: 7

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

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