In September you can literally go right up the dirt scramble to the summit from the gap and not touch any snow. In fact some choose the Disappointment Peak route in order to avoid rping up on the glacier. That route is much tougher but you do avoid glaciers and crevasse dangers.
"After the first glass, you see things as you wish they were. After the second, you see things as they are not. Finally, you see things as they really are, which is the most horrible thing in the world."
--Oscar Wilde on Absinthe