I can’t import images of your data, so I created my own as the ‘A’ matrix:
A = [(1:12)' sort(rand(12,3),2)]; % Create Data Matrix
figure
plot([A(:,1) A(:,1)]', [A(:,2) A(:,4)]','-r') % Plot ‘Min’, ‘Max
hold on
plot(A(:,1), A(:,3), 'sr', 'MarkerFaceColor','r') % Plot ‘Ave’
hold off
xl = {'Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'};
set(gca,'XTick',(1:12), 'XTickLabel',xl)
xlim([0 13])
Name your own data matrix ‘A’ and this code should do what you want without any further changes.
An example plot —
