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Saint Louis — weather in May, water temperature

29.9°C Daytime temperatures 21.7°C Night temperatures 30 Sunny days 12.7-13 Sun (hours) 0 Rainy days 1.1 mm Precipitation 20.5°C water temperature
Air temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The maximum daily temperature 43.5°C — 31 May 2013.
The maximum night temperature 30°C — 31 May 2013.
The minimum daily temperature 12.5°C — 17 May 2020.
The minimum night temperature 18°C — 5 May 2017.
water temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The warmest water 23.9 °C — 31 May 2017. The coldest water 17.4 °C — 2 May 2022.
Sunny, cloudy and gloomy days
Precipitation, mm
Maximum precipitation 87 mm — September. Minimum precipitation 0.2 mm — November.
Wind speed, km / h
Maximum wind speed 24.3 km / h — April. Minimum wind speed 17.8 km / h — September.
Number of hours of sunshine
The maximum number of hours of sunshine per day 12.2 h. — May. The minimum number of hours of sunshine per day 8.2 h. — August.
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