More on Warming in Sonoma County

Did some more analysis on temperature data in Sonoma County. This time the data is from the Santa Rosa C weather station, and goes back to 1950. Santa Rosa is the biggest city in Sonoma County, and has experienced the largest population growth. Interestingly, this data also shows warming, about 2 degrees, in the average of annual high and low temperatures

However, there is a fundamental difference with the Graton data.

In Graton, the average low temperature increases only about a degree between 1949 and 2005 as shown here Compare this with the Santa Rosa low average which increases almost six degrees!

Here is the really astounding thing: Where the Graton average high temp increases between 3-4 degrees between 1949 and 2005, the Santa Rosa average high decreases by almost 2 degrees!

In the IPCC Third Assessment report, it states that the global average nighttime lows are increasing about 0.2 degrees Celsius (0.32 degrees F) per decade.