The Full Moon in August is called the Grain Moon, because this would be the month for harvesting the barley and wheat.
The fishing tribes of North America are given credit for the naming of this Moon, since sturgeon, a large fish of the Great Lakes and other major bodies of water, were most readily caught during this month.
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Other names for this Moon are, the Full Red Moon because, as the Moon rises it can appear reddish through any sultry haze. It was also called the Green Corn Moon, Lightning Moon, Dog Moon.