Listado del total de dias con datos de precipitaciones
 SANTA CRUZ          EL CALAFATE AERO	         5
 nro smn:  571 nro OMM:  87904
 AñoxMes  1   2   3   4   5   6   7   8   9  10  11  12
 ----------------------------------------------------------
1988      0   0   0   0   0   0   0   0   0   0   0   0
1989      0   0   0   0   0   0   0   0   0   0   0   0
1990      0   0   0   0   0   0   0   0   0   0   0   0
1991      0   0   0   0   0   0   0   0   0   0   0   0
1992      0   0   0   0   0   0   0   0   0   0   0   0
1993      0   0   0   0   0   0   0   0   0   0   0   0
1994      0   0   0   0   0   0   0   0   0   0   0   0
1995      0   0   0   0   0   0   0   0   0   0   0   0
1996      0   0   0   0   0   0   0   0   0   0   0   0
1997      0   0   0   0   0   0   0   0   0   0   0   0
1998      0   0   0   0   0   0   0   0   0   0   0   0
1999      0   0   0   0   0   0   0   0   0   0   0   0
2000     31  29  31  30  31  30  31  31  30  31  30  31
2001     31  28  31  30  31  30  31  31  30  31  30  31
2002     29  28  29  27  31  30  31  31  30   0   0   0