Statistics Show Our County is Drying
This writer has asserted, relying on memory, that we used to have more summer rainfall in this area in the mid-eighties than we have now, and concluded that our tiered water rates are the reason, as we have been feeding the water cycle less as we save water to save money. Grants Pass city staff have told us that we are using less every year, which has caused the city to raise rates to cover overhead, which is most of the cost of cleaning and delivering water. An analysis of three decades of monthly summer rainfall totals for the 97526 zip code, from June 1983 to September 2012, shows that precipitation in July and August, our driest and hottest months, has fallen 0.09 inch per decade, from 0.41 inch to 0.32 inch to 0.23 inch. Average high rainfall for the two months, a measure of storm strength, has also fallen from 0.25 inch the first decade to 0.17 inch in the second, and 0.12 inch the third. In the first decade, there were bigger storms on average in...