15 October 2009
The global temperatures for September are out today from the National Climate Data Center in Ashville NC. The trend of very warm temps. world wide continues. The Summer of 2009 will go down as one of the warmest on the instrument record and on the proxy record going back over a thousand years.
With the growing El Nino adding more heat to that being trapped by the record high levels of CO2 (for the past 10,000 years at least!) it is very possible we will set new planetary temperature records in this year or next. This El Nino is not likely to be as strong as the one in 1998, so we may fall just short.
If you are wondering about the Troposphere as a whole, the news is no better. Both the UAH and RSS satellite temperature data is indicating that Sep. was the second warmest on their records as well. The average upward trend on the satellite data is around .15C/decade for the this past summer.