Actually, the official total at the Phoenix Encanto site was 4.18 inches in 2002. Yuma county's annual ranged all the way from 0.04 to 0.20 inches. Check the sites at http://ag.arizona.edu/azmet/azdata.htm You need to add up the monthly totals to get the annual total. I once ran a least squares trend line using the raw data to see if we are really drying up. A snapshot of the most recent 10 year period shows a negative slope of about 0.4 inches per year for my area which suggests a decline to zero inches in about 20 years. Pretty scary. But if I consider all of the data on record, then toss out the years that were 40 % above the average and 40 % below the average, the trend line is pretty flat. Suggests any predictions from statistical data need to be explained. Olin ----- Original Message ----- From: "GizmoAZ" <firstname.lastname@example.org> > Quite amazing compared to our 7 inches of average rainfall per year. We > would be floating away if we had 21.45 inches of rain in one month. The > ground here doesn't seem able to soak it in that fast.