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The August 2009 climate data is in and has been analyzed. Globally, August 2009 ranks as the second warmest August on record since records began in 1880.

august2009global“Dot maps” are a product of a merged land surface and sea surface temperature anomaly analysis. Temperature anomalies with respect to the 1961-1990 mean for land and ocean are analyzed separately and then merged to form the global analysis. Note that blue is below average and red is above average. The size of the dot is proportional to the magnitude of the anomaly. Temperature anomalies are noted in degrees Celsius. These maps are courtesy of the United States’ National Climatic Data Center.

If you’ve been saying that our weather (here in the Upper Midwest) has been cooler than what you expected, you’ve been exactly right. Much of North America, including middle America and Canada experienced cooler than average temperatures. However, averaging this deficit to the surpluses worldwide indicate a significant warming.

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Posted under 13 Climate Authority

This post was written by qni_it on September 29, 2009

4 Comments so far

  1. Curt Sanders September 29, 2009 4:10 PM

    Eric,
    The problem that I have with this data is that it is only a 30 year base. I would like to see the data expanded to see if the science being expounded holds water, or if their theory evaporates with different data.

  2. Eric Sorensen September 29, 2009 4:13 PM

    A thirty year set is a standard for climatological purposes. Even our local averages are done with respect to past 30 years.

  3. Publius September 30, 2009 7:39 PM

    The average is actually below where it was 10 years ago. It is ahead of the 30 year average, but behind the warmest 10 years ago. The advanced computer modeling, the best in the world, got that wrong and they were only a few years in advance. Those models just are not accurate representations of the next 10, 20, or 100 years.

  4. WI Weather Buff September 30, 2009 11:22 PM

    It looks like the most significant warming is in the southern hemisphere. Is that related to el nino?

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