for my $row (@{$dates}) {
    $seasons{'low'} = $row->[0] if ($row->[0] < $seasons{'low'});
    $seasons{'high'} = $row->[1] if ($row->[1] > $seasons{'high'});
}

##</code><code>##

for my $row (@{$dates}) {
    $seasons{'low'} = $row->[0] if ($row->[0] < $seasons{'low'});
    print "$row->[2]\n" if $!;
    $seasons{'high'} = $row->[1] if ($row->[1] > $seasons{'high'});
}