ROCK VALLEY, IOWA

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Elevation: 380 meters Latitude: 43 12N Longitude: 096 18W

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DAILY WEATHER AVERAGE - 21 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-7.2 ^°C	-3.1 ^°C	-11.7 ^°C	5 ^°C (2003)	-24 ^°C (1999)
Dewpoint	-9.9 ^°C	-5.7 ^°C	-13.8 ^°C	4 ^°C (2014)	-27 ^°C (2011)
Humidity	81.4 ^%	90.8 ^%	72.4 ^%		56 ^% (2011)
Barometer	1015.6 ^hPa	1020.3 ^hPa	1011.2 ^hPa	1031.8 ^hPa (1998)	1001.7 ^hPa (2004)
Wind Speed	18.8 ^km/h	33.3 ^km/h		55.5 ^km/h (2008)
Wind Gust		45.5 ^km/h		68.6 ^km/h (2008)
Precipitation	---			--- ()

Weather Element	Average
Visibility	12.1 ^km
Wind Direction	SSW (198.1 °)

Weather Element	Total
Heating Degree Days	25.7 (Base 18.3)

Total Years on Record: 21

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