Weather in September in Louisville, Kentucky

< September >
	Normal Max/ High Temperature	27°C (80°F)
	Average Temperature	21°C (69°F)
	Min/ Low Temperature	15°C (59°F)
	Normal Precipitation	80mm (3.2in)
	Number of Wet Days (probability of rain on a day)	7 (23%)
	Average Sunlight per day	08h 27'
	Average Daylight per day	12h 23'
	Sunny (Cloudy) Daylight Hours	69% (31%)
	Sun altitude at solar noon on the 21st day.	52.3°

The average temperature in Louisville, Kentucky in September is warm at 20.8 °C (69.44 °F).
Afternoons can be hot with average high temperatures reaching 26.8 °C (80.2 °F).
Overnight temperatures are generally mild with an average low of 14.8 °C (58.6 °F).
The range/ variation of diurnal average temperatures in September is 12 °C (21.6 °F).
Precipitation averages for September are moderate with 80.3mm (3.2 in) recorded across 7 days.
In September the heavens above Louisville, Kentucky are moderately sunny with on balance a respectable 8h 27' of gorgeous solar radiation daily.
The shortest day is 11h 46' long and the longest day is 12h 59' long with an average length of 12h 23'.
There are approximately 3h 46' per day when the sun is occluded by cloud, haze, fog etc.
It is sunny approximately 69.1% of daylight hours and cloudy 30.9% of daylight hours.

Weather Trend Graph for September in Louisville, Kentucky, Usa

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