MARSHALLTOWN, IOWA

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Elevation: 265 meters Latitude: 42 04N Longitude: 092 55W

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DAILY WEATHER AVERAGE - 15 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-2.7 ^°C	0.9 ^°C	-6.6 ^°C	11.1 ^°C (2002)	-21.1 ^°C (2009)
Dewpoint	-5.8 ^°C	-2.9 ^°C	-9.1 ^°C	8.9 ^°C (2014)	-24.4 ^°C (2004)
Humidity	80.4 ^%	91.2 ^%	67.7 ^%		35 ^% (2004)
Barometer	1015.2 ^hPa	1020.7 ^hPa	1010.5 ^hPa	1040.6 ^hPa (2008)	997.3 ^hPa (2003)
Wind Speed	20.4 ^km/h	33.8 ^km/h		53.8 ^km/h (2008)
Wind Gust		51.5 ^km/h		64.9 ^km/h (2011)
Precipitation	9.91 ^mm			26.42 ^mm (2014)

Weather Element	Average
Visibility	12.7 ^km
Wind Direction	SSW (206.2 °)

Weather Element	Total
Heating Degree Days	21.2 (Base 18.3)

Total Years on Record: 20

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