A Bit Cooler

Except in Buenos Aires. Cape Town propped up the Table in Week 47 with its seven-day Mean of 1.25°C below my Pre-Industrial baseline. The Argentine capital was the fourth “warmest” of my ten stations. It was comfortably in the Goldilocks Zone at 1.19°C above P-I.

Mumbai is under the spotlight this week, and it remains the coolest of the stations for the Year to Date. Another way of saying “0.59°C above P-I” is “it is currently running 0.26°C cooler than the 10 Year Baseline (Met Year 2008/9 to 2017/18)”.

Rome is the other station cooler than the 10 Year base (0.66°C above P-I), but it was the “warmest” station in Week 47 at 3.52°C above P-I. (Rome’s Weekly Mean was 19.08°C, compared to Mumbai’s 27.08 degrees.)

Week47_wkplusYTDinsets

Another chilly week in North-East England probably ensures that Durham Tees will join Rome and Mumbai as the only stations below the 10-Year base five weeks from now.

Although Mumbai will almost certainly end this meteorological year as the station that warmed the least, the trendline from the end of August indicated its temperature would rise by 0.25°C in the last 13 weeks. From a negative figure in the second of these weeks, Mumbai did begin a warming trend – until Week 47 chill knocked it back By contrast the Northern Hemisphere, expected to get cooler in Autumn relative to the Pre-Industrial baseline, has been above the end of August’s running average for the last three weeks.

Wk47_MumbaiNorthTREND

The changing climate is a factor in the California “wildfires” that have caused so much concern this past week. A short video by Verge Science explains the human dimension to what has been “natural” for millennia.

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