ST. HELENA, SOUTH DAKOTA

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Elevation: 378 meters Latitude: 42 51N Longitude: 097 29W

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DAILY WEATHER AVERAGE - 28 FEBRUARY

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-3.3 ^°C	2.1 ^°C	-9.2 ^°C	16 ^°C (2006)	-21 ^°C (2001)
Dewpoint	-7.8 ^°C	-4.7 ^°C	-11.9 ^°C	4 ^°C (2004)	-26 ^°C (2006)
Humidity	73 ^%	88.6 ^%	53.6 ^%		31 ^% (2006)
Barometer	1017.3 ^hPa	1021.7 ^hPa	1012.9 ^hPa	1038.6 ^hPa (2009)	988.5 ^hPa (2012)
Wind Speed	20.4 ^km/h	34.8 ^km/h		61.2 ^km/h (1998)
Wind Gust		47.8 ^km/h		68.6 ^km/h (1998)
Precipitation	23.11 ^mm			37.59 ^mm (2012)

Weather Element	Average
Visibility	13.4 ^km
Wind Direction	SSW (208.2 °)

Weather Element	Total
Heating Degree Days	21.9 (Base 18.3)

Total Years on Record: 20

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