Lampotila 10 paivaa John Heinz Pittsburgh Regional History Center, F° Ilmanpaine 10 paivaa John Heinz Pittsburgh Regional History Center, hPa Sademaara 10 paivaa John Heinz Pittsburgh Regional History Center, tuumaa Tuuli 10 paivaa John Heinz Pittsburgh Regional History Center, mph 24 tunnin meteorogrammi John Heinz Pittsburgh Regional History Center