DONNELLSON, IOWA

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Elevation: 220 meters Latitude: 40 42N Longitude: 091 34W

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DAILY WEATHER AVERAGE - 18 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-0.1 ^°C	4.2 ^°C	-4.2 ^°C	16 ^°C (2002)	-15 ^°C (2000)
Dewpoint	-4.3 ^°C	-0.9 ^°C	-7.5 ^°C	13 ^°C (2002)	-20 ^°C (2013)
Humidity	74.7 ^%	86 ^%	60.8 ^%		39 ^% (2011)
Barometer	1015.9 ^hPa	1020 ^hPa	1011.9 ^hPa	1032.2 ^hPa (2006)	997.3 ^hPa (2002)
Wind Speed	14.6 ^km/h	28.8 ^km/h		53.8 ^km/h (2004)
Wind Gust		44.3 ^km/h		68.6 ^km/h (2004)
Precipitation	8.64 ^mm			19.3 ^mm (2008)

Weather Element	Average
Visibility	14.3 ^km
Wind Direction	SSW (213.9 °)

Weather Element	Total
Heating Degree Days	18.3 (Base 18.3)
Growing Degree Days	0.5 (Base 10)

Total Years on Record: 19

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