Mild
Average highs are around 26°C, so days are mild rather than hot.
September verdict
Champaign, Illinois, United States in September
Weather score66Good
Good for holiday weather
Average highs are around 26°C, so days are mild rather than hot. Sunshine averages 7.9h per day, enough for a balanced month. Rainfall averages 82mm, so some wet days are possible.
September weather
Monthly averages
Temp
26°C
Rain
82mm
Sun
7.9h
Weather score
66
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 82mm, so some wet days are possible.
Some sun
Sunshine averages 7.9h per day, enough for a balanced month.
Map
Weather map
Compare Champaign, 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
September82mm average rain
September sits near Champaign's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to February, October, and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September7.9 hours average sun
September sits close to Champaign's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
September66 weather score
September scores above Champaign's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.
