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Chicago — weather in September, water temperature

22.6°C Daytime temperatures 17.6°C Night temperatures 16 Sunny days 11.8-13.1 Sun (hours) 5 Rainy days 72.6 mm Precipitation 18.6°C water temperature
Air temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The maximum daily temperature 34°C — 20 September 2022.
The maximum night temperature 25°C — 7 September 2016.
The minimum daily temperature 13.5°C — 12 September 2022.
The minimum night temperature 7°C — 29 September 2018.
water temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The warmest water 24.4 °C — 1 September 2021. The coldest water 16.5 °C — 22 September 2014.
Sunny, cloudy and gloomy days
Precipitation, mm
Maximum precipitation 134.8 mm — June. Minimum precipitation 39.2 mm — November.
Wind speed, km / h
Maximum wind speed 20.1 km / h — November. Minimum wind speed 13.4 km / h — August.
Number of hours of sunshine
The maximum number of hours of sunshine per day 10.1 h. — June. The minimum number of hours of sunshine per day 3.5 h. — January.
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