MARSHALLTOWN, IOWA

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

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DAILY WEATHER AVERAGE - 21 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-5.4 ^°C	-2 ^°C	-8.9 ^°C	6.1 ^°C (2015)	-25 ^°C (1999)
Dewpoint	-8.3 ^°C	-5.1 ^°C	-11.4 ^°C	6 ^°C (2015)	-27.8 ^°C (2000)
Humidity	81.5 ^%	92.5 ^%	70.5 ^%		44 ^% (2000)
Barometer	1016.9 ^hPa	1021.3 ^hPa	1012.5 ^hPa	1034.2 ^hPa (1998)	1003 ^hPa (2004)
Wind Speed	19.2 ^km/h	31.9 ^km/h		57.5 ^km/h (2004)
Wind Gust		46 ^km/h		72.3 ^km/h (2004)
Precipitation	3.3 ^mm			6.1 ^mm (2006)

Weather Element	Average
Visibility	11.3 ^km
Wind Direction	SSW (202.6 °)

Weather Element	Total
Heating Degree Days	23.8 (Base 18.3)

Total Years on Record: 20

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