Chelmsford Weather History

Massachusetts, United States of America

Weather on a past date in Chelmsford

Any date from 1 January 2009 to yesterday.

Fri 13 Nov, 2026 Weather in Chelmsford

Sunrise: 06:34 AM
Sunset: 04:24 PM		Moonrise: 11:04 AM
Moonset: 07:51 PM		Max:
6.0 °c		Min:
1.4 °c		Avg:
3.6 °c		Precip:
8.80 mm		Max Wind:
16.9 kph
 
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IconHeavy rain at timesHeavy rain at timesModerate rain at timesOvercastOvercastCloudyOvercastCloudy
Temp6.0°c4.1°c2.0°c3.0°c4.9°c5.5°c3.3°c2.3°c
Wind16.9 kmph16.9 kmph15.5 kmph12.6 kmph11.5 kmph9.0 kmph8.3 kmph10.8 kmph
Precip1.10 mm1.00 mm0.50 mm0.00 mm0.00 mm0.00 mm0.00 mm0.00 mm
Cloud100%100%100%100%97%76%85%61%
Humidity95%97%98%87%73%67%72%72%
Pressure1001 mb1001 mb1002 mb1003 mb1002 mb1003 mb1004 mb1005 mb

Chelmsford Annual Weather Averages

MonthHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
January1°C / 33°F-6°C / 21°F-3°C / 27°F177 hours94.80 mm / 3.73 In7 days1016 mb / 30 In
February2°C / 36°F-6°C / 22°F-2°C / 29°F147 hours102.74 mm / 4.04 In7 days1016 mb / 30 In
March7°C / 44°F-2°C / 29°F2°C / 36°F153 hours125.33 mm / 4.93 In8 days1016 mb / 30 In
April13°C / 56°F4°C / 39°F9°C / 47°F158 hours109.13 mm / 4.30 In8 days1015 mb / 30 In
May20°C / 68°F10°C / 49°F15°C / 58°F185 hours98.21 mm / 3.87 In7 days1016 mb / 30 In
June25°C / 77°F14°C / 58°F19°C / 67°F194 hours110.97 mm / 4.37 In9 days1013 mb / 30 In
July29°C / 84°F18°C / 65°F23°C / 74°F223 hours124.81 mm / 4.91 In10 days1014 mb / 30 In
August28°C / 82°F17°C / 63°F22°C / 72°F232 hours101.28 mm / 3.99 In8 days1015 mb / 30 In
September23°C / 74°F14°C / 57°F18°C / 65°F207 hours97.25 mm / 3.83 In6 days1018 mb / 31 In
October17°C / 62°F8°C / 47°F12°C / 54°F177 hours117.32 mm / 4.62 In6 days1017 mb / 31 In
November10°C / 50°F2°C / 36°F6°C / 42°F201 hours97.91 mm / 3.85 In6 days1018 mb / 31 In
December4°C / 39°F-2°C / 28°F1°C / 33°F171 hours140.01 mm / 5.51 In8 days1017 mb / 31 In

Need more than one day of Chelmsford history?

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

  • Historical weatherDaily and hourly interval data.
  • Yearly monthly averagesMonthly averages for every year since 2009.
  • Monthly climate averagesLong-term climate normals by month.
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Weather history near Chelmsford

Region

Massachusetts

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Chelmsford weather history: common questions

How far back does Chelmsford 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 Chelmsford 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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