And it came to pass in the six hundredth and first year, in the first month, the first day of the month, the waters were dried up from off the earth: and Noah removed the covering of the ark, and looked, and, behold, the face of the ground was dry.
All Commentaries on Genesis 8:13 Go To Genesis 8
George Leo Haydock
Year of Noe's age, who, we may suppose, was born on the first day of the year. So that his 601st year corresponds with the 1657th of the world, B.C. 2343, on which day the deluge ended. Still Noe waited for God's order to leave the ark till the 27th of the ensuing month, when the earth was more perfectly dried. (Haydock)
Covering. Some think that the window was at the top, like a sky-light. (Calmet)