Boston
Massachusetts, United States · now 8°, clear
May 2021
- Average
- 20° / 10°
- Warmest
- May 26, 34°
- Coldest
- May 1, 5°
- Rain
- 139.5 mm
- Wet days
- 12 days (≥ 1 mm)
- Against normal
- 1° warmer than normal
- Sat 13.1 mm5°16°±0°
- Sun 21.2 mm9°24°+8°
- Mon 310°17°+1°
- Tue 421.7 mm8°13°−4°
- Wed 513.2 mm8°10°−7°
- Thu 60.2 mm9°17°±0°
- Fri 76°13°−4°
- Sat 80.6 mm5°11°−6°
- Sun 90.5 mm6°19°+1°
- Mon 109.7 mm9°15°−3°
- Tue 110.1 mm8°17°−1°
- Wed 120.1 mm6°18°±0°
- Thu 136°20°+1°
- Fri 148°23°+4°
- Sat 159°23°+4°
- Sun 161.3 mm12°25°+6°
- Mon 179°24°+4°
- Tue 1813°28°+8°
- Wed 1915°23°+3°
- Thu 2012°22°+2°
- Fri 2111°26°+6°
- Sat 2216°32°+11°
- Sun 230.1 mm17°33°+12°
- Mon 2411°20°−2°
- Tue 2510°27°+5°
- Wed 264.2 mm16°34°+12°
- Thu 271.5 mm16°28°+6°
- Fri 2812.0 mm9°16°−7°
- Sat 2933.2 mm8°10°−14°
- Sun 3020.8 mm9°11°−13°
- Mon 3116.0 mm10°17°−6°
10 May in past years, 2012–2021
- 2021 Mon9.7 mm9°15°
- 2020 Sun2°14°
- 2019 Fri0.4 mm9°17°
- 2018 Thu9°22°
- 2017 Wed0.5 mm3°14°
- 2016 Tue5°20°
- 2015 Sun16°30°
- 2014 Sat2.5 mm13°25°
- 2013 Fri0.4 mm13°24°
- 2012 Thu20.8 mm9°17°
· Weather data by ECMWF (CC BY 4.0) via Open-Meteo · Historical weather: ERA5, Copernicus Climate Change Service, via Open-Meteo