Russ Steele
As many readers know, since 2005 I have been tracking the monthly temperature changes at the Grass Valley surface station, located at the Sewer Plant. Today Linda Quinn, who records the temperatures and sends them to the National Weather Service sent me the latest readings for January 2008. The average January temperature from 1971 to 2000 was 42.85. In 2005 the Average was 44.2 about 1.35 above average. In 2006 42.18, about about 0.67 below average. In 2007 the average was 40.4 or about 2.45 below the multi-year average. Now in 2008 the average is 39.64, or about 3.21 degrees below the multi-year average. I check the 1961 to 1990 average and there was not much difference, with an average of 42.6.
These figures indicate a weather trend, not global climate change. We would need 30 years of data for a global climate change trend. However, I find it interesting that each January for last four years has been progressively cooler, then the year before. Any bets on 2009?
UPDATE: Here is a picture of the Grass Valley Surface Station at the sewer plant.
