Freebase(0.00 / 0 votes)Rate this definition: Romance languages. The Romance languages are all the related languages derived from Vulgar Latin and forming a subgroup of the Italic languages within the Indo-European language family. The Romance languages developed from Latin in the sixth to ninth centuries.
In most years, Chicago averages a daily maximum temperature for September that's between 72 and 78 degrees Fahrenheit (22 to 25 degrees Celsius). The minimum temperature usually falls between 52 and 57 Â°F (11 to 14 Â°C).
Averages for Chicago in September. September in Chicago is autumn in the city, which means the weather is still pleasant but more mild than it is during the summer. The milder temperatures also mean that the tourists tend to empty out of the city in this month, so it is a perfect time to enjoy sight seeing without the excessive crowds and queues.