BEGIN	{
	print("Day  Air    SST    T10    T20    T40    T60    T80    T100   T150   T200   T250   T300");
	}

(! /^#/ ) {
	    newday = int($1);
	    if ( (newday != day) && (day != 0) )
	    {
		printf("%3d", day);
		for ( i = 0; i < 12; i++ )
		{
		    printf( " %6.3f", temp[i]/samples[i] );
		    temp[i] = 0.0;
		    samples[i] = 0;
		}
		printf("\n");
	    }
	    day = newday;
	    for ( i = 0; i < 12; i++ )
		if ( $(i+3) > 0.5 )
		{
		    temp[i] += $(i+3);
		    samples[i]++;
		}
	   }

END	{
	    printf("%3d", day);
	    for ( i = 0; i < 12; i++ )
		printf( " %6.3f", temp[i]/samples[i] );
	    printf("\n");
	}