The angle of the sun at sunrise and sunset (azimuth) may be expressed as degrees deviation from North (with East at 90 degrees). It varies by about 66 degrees over the year, from 57 degrees at the summer solstice to 122 degrees at the winter solstice. (That is, East +/- 33 degrees).

The altitude or elevation of the sun at noon varies as well, from 71 degrees at noon on the summer solstice to 24 degrees at noon on the winter solstice.

Perhaps the easiest way of seeing the combined effects of the seasons and time of day is to plot the solar altitude as a function of the solar azimuth as a family of curves, a different curve for each month.

Note also the number of hours of daylight varies from 15.3 in summer to 9.1 in winter.

The following table is organized from data provided by the US Naval Observatory

date Hours of Sunlight Sunrise Altitude Sunset Azimuth N of E/W
21-Jun 15.3 57 71 303 33
21-Jul 14.8 61 68 299 29
21-Aug 13.6 73 60 287 17
21-Sep 12.1 90 47 270 0
21-Oct 10.8 104 37 256 -14
21-Nov 9.6 117 28 243 -27
21-Dec 9.1 122 24 239 -32
21-Jan 9.6 117 28 243 -27
21-Feb 10.8 104 37 256 -14
21-Mar 12.1 90 47 270 0
21-Apr 13.6 73 60 287 17
21-May 14.8 61 68 299 29
21-Jun 15.3 57 71 303 33
When presented graphically, the variation is quite striking. Notice the symmetry of the azimuth for sun rise and sun set.

Azimuth can be converted from degrees (above) to deviations from East-West. That is, in summer there is a positive (Northerly) deviation, in the winter, a negative (Southerly) deviation.