The unique climate of Jerusalem
Figure 1 shows the amount of sunshine received at 69 weather stations around the earth on the x-axis and the amount of precipitation in millimeters per year on the vertical axis. A vertical line at 3250 hours of annual sunshine and a horizontal line at 300 millimeters of annual rainfall divide the chart into quadrants. Notice that two stations in Jerusalem fall alone in the upper right-hand quadrant of this diagram with a large amount of sunshine and a moderate amount of rain occur. The only other station which approaches these ideal conditions is Flagstaff, Arizona, which is at a considerably higher, cooler elevation than Jerusalem.