Harvard December Weather Averages

Illinois, United States of America

December Weather Averages for Harvard

High Temp1°C34°F
Low Temp-5°C23°F
Avg Temp-2°C28°F
Sunshine Hours112 hours 
Rainfall63.20 mm2.49 In
Rain days7 days 
Pressure1019 mb31 In

 

Harvard December Averages Year by Year

YearHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
2009-2°C / 29°F-8°C / 18°F-4°C / 24°F70 hours98.40 mm / 3.87 In11 days1017 mb / 31 In
2010-4°C / 25°F-10°C / 14°F-7°C / 19°F61 hours48.20 mm / 1.90 In10 days1020 mb / 31 In
20113°C / 37°F-3°C / 27°F-0°C / 32°F170 hours49.98 mm / 1.97 In7 days1020 mb / 31 In
20123°C / 37°F-3°C / 27°F0°C / 32°F104 hours74.91 mm / 2.95 In10 days1016 mb / 30 In
2013-3°C / 26°F-11°C / 12°F-7°C / 20°F86 hours47.40 mm / 1.87 In12 days1020 mb / 31 In
20141°C / 34°F-4°C / 25°F-1°C / 30°F124 hours28.20 mm / 1.11 In3 days1023 mb / 31 In
20155°C / 41°F-0°C / 32°F2°C / 36°F82 hours140.77 mm / 5.54 In10 days1015 mb / 30 In
2016-3°C / 27°F-9°C / 16°F-6°C / 22°F60 hours47.30 mm / 1.86 In7 days1021 mb / 31 In
2017-1°C / 30°F-7°C / 20°F-4°C / 24°F163 hours21.60 mm / 0.85 In5 days1020 mb / 31 In
20182°C / 36°F-3°C / 26°F-1°C / 31°F164 hours68.10 mm / 2.68 In7 days1019 mb / 31 In
20193°C / 38°F-4°C / 26°F-0°C / 32°F143 hours46.78 mm / 1.84 In4 days1017 mb / 30 In
20201°C / 34°F-5°C / 24°F-2°C / 29°F170 hours61.79 mm / 2.43 In5 days1017 mb / 31 In
20216°C / 42°F-3°C / 27°F1°C / 34°F194 hours65.00 mm / 2.56 In7 days1015 mb / 30 In
20220°C / 33°F-6°C / 20°F-3°C / 26°F52 hours55.60 mm / 2.19 In7 days1018 mb / 31 In
20235°C / 41°F0°C / 32°F2°C / 36°F107 hours55.39 mm / 2.18 In6 days1018 mb / 31 In
20240°C / 32°F-4°C / 24°F-2°C / 28°F83 hours74.54 mm / 2.93 In3 days1021 mb / 31 In
2025-2°C / 28°F-8°C / 18°F-5°C / 24°F76 hours90.40 mm / 3.56 In1 days1018 mb / 31 In

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Harvard weather history: common questions

How far back does Harvard 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 Harvard 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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