December Weather Averages for Cornwall

High Temp-0°C31°F
Low Temp-6°C21°F
Avg Temp-3°C26°F
Sunshine Hours84 hours 
Rainfall109.57 mm4.31 In
Rain days11 days 
Pressure1017 mb31 In

 

Cornwall December Averages Year by Year

YearHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
2009-2°C / 28°F-8°C / 18°F-5°C / 23°F59 hours116.71 mm / 4.59 In12 days1017 mb / 31 In
2010-3°C / 26°F-8°C / 17°F-6°C / 22°F39 hours76.61 mm / 3.02 In11 days1012 mb / 30 In
20111°C / 34°F-5°C / 23°F-2°C / 29°F147 hours101.45 mm / 3.99 In14 days1020 mb / 31 In
2012-0°C / 32°F-6°C / 21°F-3°C / 26°F78 hours155.71 mm / 6.13 In12 days1016 mb / 30 In
2013-4°C / 25°F-11°C / 12°F-7°C / 19°F37 hours90.11 mm / 3.55 In18 days1019 mb / 31 In
2014-0°C / 32°F-6°C / 22°F-3°C / 27°F109 hours78.30 mm / 3.08 In11 days1020 mb / 31 In
20155°C / 41°F0°C / 32°F3°C / 37°F70 hours116.31 mm / 4.58 In9 days1017 mb / 31 In
2016-0°C / 32°F-7°C / 19°F-4°C / 26°F56 hours96.51 mm / 3.80 In16 days1017 mb / 31 In
2017-5°C / 24°F-10°C / 13°F-8°C / 18°F78 hours69.38 mm / 2.73 In11 days1017 mb / 31 In
2018-0°C / 32°F-7°C / 19°F-3°C / 26°F140 hours85.60 mm / 3.37 In13 days1019 mb / 31 In
2019-1°C / 31°F-6°C / 20°F-3°C / 26°F96 hours78.96 mm / 3.11 In13 days1017 mb / 31 In
20201°C / 33°F-5°C / 23°F-2°C / 29°F81 hours85.82 mm / 3.38 In14 days1014 mb / 30 In
20212°C / 35°F-5°C / 24°F-1°C / 29°F79 hours72.00 mm / 2.83 In13 days1015 mb / 30 In
20222°C / 35°F-4°C / 25°F-1°C / 30°F88 hours117.40 mm / 4.62 In14 days1018 mb / 31 In
20233°C / 37°F-3°C / 27°F-0°C / 32°F98 hours148.62 mm / 5.85 In8 days1018 mb / 31 In
2024-1°C / 30°F-5°C / 23°F-3°C / 27°F71 hours224.03 mm / 8.82 In3 days1020 mb / 31 In
2025-2°C / 28°F-9°C / 16°F-6°C / 22°F101 hours149.20 mm / 5.87 In3 days1013 mb / 30 In

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Cornwall weather history: common questions

How far back does Cornwall 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 Cornwall 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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