ST. HELENA, SOUTH DAKOTA

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

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DAILY WEATHER AVERAGE - 15 MAY

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	14.7 ^°C	20.6 ^°C	8.7 ^°C	33 ^°C (2001)	-1 ^°C (2014)
Dewpoint	6.4 ^°C	9.4 ^°C	3.6 ^°C	17.2 ^°C (1996)	-9 ^°C (1997)
Humidity	60.6 ^%	80.6 ^%	42.6 ^%		20 ^% (1997)
Barometer	1014.9 ^hPa	1018.3 ^hPa	1011.5 ^hPa	1026.8 ^hPa (2006)	999 ^hPa (1998)
Wind Speed	16.7 ^km/h	33.3 ^km/h		53.8 ^km/h (1998)
Wind Gust		49.2 ^km/h		68.6 ^km/h (1998)
Precipitation	6.1 ^mm			16.26 ^mm (1998)

Weather Element	Average
Visibility	15.1 ^km
Wind Direction	SSW (192.3 °)

Total Years on Record: 21

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