I had a hard time trying to get the chords to line up with the lyrics like i wanted, but 
basically its just
D----/A----/Em----/----  enjoy.

The little riff played after the Em is something like:

e--------------------------------------------|
B--------------------------------------------|
G--------------------------------------------|
D---2/4---2p0---0---2/4---4------------------|
A--------------------------------------------|
E--------------------------------------------|

D                       A                   Em
September days are the nicest days of the years.
D               A                                       Em
Everything changes and green turns to brown in your eyes.
D           A                Em
Anticipating anxiety and disbelief.
D                  A                  Em
September days are the nicest days of the years.

D                          A                       Em
I've been painting the windows of your hotel.
D                                 A                                   Em
The sidewalks are straining to catch me and keep me the night.
D                 A                         Em
Anticipating the shadows changing, week by week.
D                        A                        Em
I've been painting the windows of your hotel.

Em                             D
All along the streets are strangers filing into town
G
but you and I must save a place for shadows on the ground.

D                        A                   Em
September days are the nicest days of the year.