D APR 1 - APR 15
E APR 16 - APR 30
F MAY 1 - MAY 15
G MAY 16 - MAY 31
H JUN 1 - JUN 30
C MAR 1 - MAR 31
I JUL 1 - JUL 31
B JAN 1 - FEB 28
A RARE OR NO FREEZE