LATEST/EARLIEST FREEZE DATES (<32) FOR COLUMBIA (1890-2003)
EARLIEST FIRST DATE OF THE OCCURRENCE....................SEPTEMBER 18, 1901
EARLIEST LAST DATE OF THE OCCURRENCE.....................MARCH 10, 1929
LATEST FIRST DATE OF THE OCCURRENCE.......................NOVEMBER 6, 1928
LATEST LAST DATE OF THE OCCURRENCE........................MAY 9, 1906
AVERAGE FIRST DATE OF THE OCCURRENCE...................OCTOBER 25
AVERAGE LAST DATE OF THE OCCURRENCE.....................APRIL 10
LONGEST FREEZE FREE PERIOD...............................................246 DAYS IN 1946
SHORTEST FREEZE FREE PERIOD............................................152 DAYS IN 1891 AND 1901
AVERAGE FREEZE FREE PERIOD..............................................192 DAYS
PROBABILITY OF THE OCCURRENCE IN THE FALL OF:
90% CHANCE BY NOVEMBER 1ST
50% CHANCE BY OCTOBER 16TH
10% CHANCE BY OCTOBER 1ST
