NAPERVILLE, ILLINOIS

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Elevation: 209 meters Latitude: 41 49N Longitude: 088 04W

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DAILY WEATHER AVERAGE - 31 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-2.2 ^°C	0.7 ^°C	-6 ^°C	13.3 ^°C (2006)	-16.7 ^°C (2013)
Dewpoint	-6.1 ^°C	-2.9 ^°C	-9.9 ^°C	12 ^°C (2006)	-21.7 ^°C (2003)
Humidity	75.9 ^%	88 ^%	61 ^%		38 ^% (2003)
Barometer	1018.3 ^hPa	1023 ^hPa	1013.9 ^hPa	1037.3 ^hPa (2014)	1000 ^hPa (2005)
Wind Speed	16.4 ^km/h	26.9 ^km/h		40.7 ^km/h (2008)
Wind Gust		44.7 ^km/h		55.5 ^km/h (2008)
Precipitation	9.4 ^mm			32.77 ^mm (2010)

Weather Element	Average
Visibility	12.6 ^km
Wind Direction	WSW (236.1 °)

Weather Element	Total
Heating Degree Days	21 (Base 18.3)

Total Years on Record: 21

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