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Boston — weather in April, water temperature

11.6°C Daytime temperatures 6.5°C Night temperatures 10 Sunny days 12.7-14 Sun (hours) 5 Rainy days 84.7 mm Precipitation 6.6°C water temperature
Air temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The maximum daily temperature 23.5°C — 16 April 2017.
The maximum night temperature 19°C — 20 April 2019.
The minimum daily temperature 0°C — 15 April 2018.
The minimum night temperature -3.5°C — 5 April 2016.
water temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The warmest water 9.8 °C — 23 April 2022. The coldest water 2.7 °C — 1 April 2015.
Sunny, cloudy and gloomy days
Precipitation, mm
Maximum precipitation 87.9 mm — December. Minimum precipitation 50.7 mm — September.
Wind speed, km / h
Maximum wind speed 17.8 km / h — January. Minimum wind speed 12.3 km / h — August.
Number of hours of sunshine
The maximum number of hours of sunshine per day 9.6 h. — July. The minimum number of hours of sunshine per day 4.8 h. — December.
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