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Boston — weather December, water temperature

4.1°C Daytime temperatures 1°C Night temperatures 12 Sunny days 9.1-9.3 Sun (hours) 4 Rainy days 87.9 mm Precipitation 7.4°C water temperature
Air temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012
The maximum daily temperature 17°C — 24 December 2015.
The maximum night temperature 16.5°C — 1 December 2020.
The minimum daily temperature -14°C — 28 December 2017.
The minimum night temperature -16.5°C — 29 December 2017.
water temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The warmest water 10.1 °C — 1 December 2016. The coldest water 3.3 °C — 30 December 2022.
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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