Warm
Average highs sit around 26°C, giving warm days by monthly-average standards.
September verdict
Quincy, Illinois, United States in September
Weather score65Good
Good for holiday weather
Average highs sit around 26°C, giving warm days by monthly-average standards. Sunshine averages 7.6h per day, enough for a balanced month. Rainfall averages 107mm, so some wet days are possible.
September weather
Monthly averages
Temp
26°C
Rain
107mm
Sun
7.6h
Weather score
65
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 107mm, so some wet days are possible.
Some sun
Sunshine averages 7.6h per day, enough for a balanced month.
Map
Weather map
Compare Quincy, Illinois, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September26°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
September107mm average rain
September is one of Quincy's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to February and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September7.6 hours average sun
September sits close to Quincy's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
September65 weather score
September sits close to Quincy's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.
