Possession_Island 18Z temperature
1993     0.5    -3.2    -9.7   -16.5   -21.0   -18.7   -19.7   -22.8   -18.9   -15.3    -7.2    -1.8
1994    -0.8    -5.3   -14.6   -13.6   -21.7   -20.0   -18.8   -24.9   -20.2   -14.1    -6.6    -1.8
1995    -0.6    -3.1    -9.9   -17.1   -19.7   -19.5   -19.6   -19.7   -20.2   -14.6    -7.8    -0.7
1996    -0.6    -2.7    -6.7   -13.4   -19.1   -19.2   -21.2   -16.8   -20.3   -17.2       -       -
1997     0.0    -2.3    -9.7   -18.9   -19.7   -16.9   -22.5   -25.1   -18.5   -11.0       -       -
1998       -    -2.9   -12.0   -20.4   -18.6   -16.4   -20.8   -19.2   -20.7   -14.5       -       -
1999     0.0    -2.3    -9.5   -17.6   -22.3   -16.9   -17.3   -22.7   -18.5   -14.7       -       -
2000    -0.9    -2.9    -8.1   -15.3   -17.2   -19.7   -18.8   -20.4   -18.7   -16.2       -       -
2001    -0.9    -2.9   -11.1   -16.9   -18.9   -18.2   -19.6   -24.4   -20.1   -14.6    -7.2    -0.9
2002     0.6    -2.2    -7.4   -15.2   -14.5   -17.8   -22.3   -25.4   -16.7   -14.1    -6.8    -2.0
2003       -       -       -       -       -       -   -19.5       -       -       -       -       -
2004       -       -       -       -       -       -       -       -       -       -       -       -
2005       -    -2.8    -8.2   -17.1   -16.4   -18.5   -19.5   -19.2   -19.9       -    -6.6     0.0
2006    -0.3       -       -       -       -       -       -       -       -       -       -       -
2007       -       -       -   -16.5   -15.8   -18.0   -18.8       -   -18.8   -15.7    -6.7    -1.0
2008    -0.8    -5.6   -10.6   -14.2   -19.4   -16.3   -23.2       -   -18.2   -14.3       -       -
2009       -       -       -       -       -       -       -       -       -       -       -       -