%03/01/2012 Trondheim source: Yr.no http://www.yr.no/sted/Norge/S%C3%B8r-Tr%C3%B8ndelag/Trondheim/Trondheim/almanakk.html?dato=2012-01-03
hours=0:23;

 %predicted temperature
temp=[-1.2 -1.1 -2.2 -1.7 -2.9 -3.6 -3.3 -4.2 -3.4 -1.9 -2.3 -3.5 -2.2 0.9 1.1 1.1 1.0 1.4 1.2 1.9 2.9 3.5 3.1 3.3];

tempmax=[-0.4 -0.5 -1.1 -1.6 -1.5 -2.3 -2.7 -3.4 -2.7 -1.9 -1.6 -1.4 -0.6 0.9 1.1 1.3 1.1 1.5 1.4 2.3 3.0 3.6 3.7 3.5];

%real temperature
tempmin=[-1.3 -1.2 -2.2 -2.8 -2.9 -3.6 -4.2 -4.5 -4.4 -4.1 -3.5 -3.5 -3.5 -2.0 0.8 0.9 0.6 1.0 0.9  -0.2 1.9 2.9 3.1 2.9];
plot(hours,temp,hours,tempmax,hours,tempmin)