Chelsea May Weather Averages

Massachusetts, United States of America

May Weather Averages for Chelsea

High Temp19°C66°F
Low Temp10°C51°F
Avg Temp15°C58°F
Sunshine Hours183 hours 
Rainfall102.39 mm4.03 In
Rain days8 days 
Pressure1016 mb30 In

 

Chelsea May Averages Year by Year

YearHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
200917°C / 63°F10°C / 51°F14°C / 57°F192 hours89.27 mm / 3.51 In12 days1017 mb / 31 In
201019°C / 67°F11°C / 53°F15°C / 60°F277 hours62.19 mm / 2.45 In6 days1015 mb / 30 In
201118°C / 65°F10°C / 50°F14°C / 57°F155 hours93.80 mm / 3.69 In9 days1016 mb / 30 In
201220°C / 67°F12°C / 53°F15°C / 60°F158 hours103.00 mm / 4.06 In11 days1017 mb / 31 In
201320°C / 68°F9°C / 49°F15°C / 58°F209 hours92.48 mm / 3.64 In9 days1018 mb / 31 In
201419°C / 66°F9°C / 49°F14°C / 57°F142 hours67.21 mm / 2.65 In9 days1016 mb / 30 In
201522°C / 72°F11°C / 51°F17°C / 62°F260 hours31.27 mm / 1.23 In3 days1020 mb / 31 In
201618°C / 65°F10°C / 50°F14°C / 57°F147 hours60.72 mm / 2.39 In9 days1015 mb / 30 In
201717°C / 63°F9°C / 49°F13°C / 56°F117 hours131.63 mm / 5.18 In9 days1013 mb / 30 In
201822°C / 71°F13°C / 55°F17°C / 63°F226 hours80.76 mm / 3.18 In8 days1017 mb / 31 In
201918°C / 64°F10°C / 50°F14°C / 57°F154 hours104.10 mm / 4.10 In10 days1015 mb / 30 In
202018°C / 64°F10°C / 50°F14°C / 57°F173 hours59.02 mm / 2.32 In4 days1015 mb / 30 In
202118°C / 65°F11°C / 51°F14°C / 58°F139 hours127.71 mm / 5.03 In7 days1017 mb / 31 In
202220°C / 68°F11°C / 52°F16°C / 60°F227 hours32.40 mm / 1.28 In4 days1018 mb / 31 In
202320°C / 68°F10°C / 49°F15°C / 58°F258 hours126.85 mm / 4.99 In4 days1016 mb / 30 In
202419°C / 66°F11°C / 52°F15°C / 58°F134 hours54.45 mm / 2.14 In3 days1014 mb / 30 In
202515°C / 59°F10°C / 51°F13°C / 55°F75 hours436.13 mm / 17.17 In12 days1014 mb / 30 In
202620°C / 68°F11°C / 51°F15°C / 59°F245 hours90.09 mm / 3.55 In14 days1015 mb / 30 In

Need more than one day of Chelsea history?

Download historical weather for Chelsea, or any other location, in CSV from January 2009 onwards. Ideal for research, insurance, energy, agriculture and machine-learning projects.

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Weather history near Chelsea

Region

Massachusetts

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Chelsea weather history: common questions

How far back does Chelsea weather history go?

Hourly historical weather is available from 1 January 2009. Choose a date above, or pick a month at the top of the page for long-term averages.

Can I download Chelsea historical weather as a file?

Yes. Buy historical weather data as daily or hourly CSV, yearly monthly averages or monthly climate averages. A free sample download is available.

Is there an API for historical weather?

Yes. The WeatherAPI.com History API returns hourly weather for any past date from 2010, as JSON or XML. Get a free API key.

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