Why does my sun not cast shadows north at noon at different months.

[johngow]

I'm trying to provide shade on an outside covered area and am getting wildly different shadow directions at noon in different months.

I know length of shadow will be very different, but shouldn't the sun cast the shadows in nearly the same north direction at noon any time of the year.

I've entered the longitude and latitude and know which way is north, but shadows are all over the place.  

Can anyone help with this?

[mtldesigns]

3 hours ago, johngow said:

shouldn't the sun cast the shadows in nearly the same north direction at noon any time of the year.

I'm not an astronomist, but I am pretty sure it doesn't.  DST takes a play here too.  Are you like really off on the shadows?  

[Michael_Gia]

6 hours ago, johngow said:

but shouldn't the sun cast the shadows in nearly the same north direction at noon any time of the year.

Earth tilt. 
 

unless it’s during the equinoxes, 3rd week in March and September. 
 

also not a astronomer 

[glennw]

Have you included a sun angle?

Have you used this