The Northern Winter

After a cold start, my small sample of five northern hemisphere weather stations developed a fever, the running average weekly mean ending the season 2.51°C warmer than the same period last year.

NorthWINTER20cf19DIFF

At Week 13 last year, Washington DC, Rome, Mumbai, Koltsovo and Shanghai were, together, running at 1.31°C above their Pre-Industrial baseline. Adding the aforementioned difference gives a Winter average of 3.52°C above P-I. After the chilly first week, the rise was at first steep and then steady.

NorthWINTER20cfP-I

Under normal circumstances, this rise cannot be expected to continue through the northern Spring. However, the new coronavirus has cleared the skies above China of so much filth that Shanghai may get warmer still. Perhaps the other four stations will cool.

North-east England followed The Five – but less enthusiastically. At the end of this winter, Durham Tees was a mere 0.9°C warmer than the previous year.

DurTeesWINTER20cf19DIFF

Weeks 9 to 11 were not as warm as this graph makes them appear. There was a bit of a cold snap in the corresponding period last year.

DurTeesWINTER20cfP-I

This corner of England cooled markedly over the next nine months of 2019, ending the year at just 0.55 degrees centigrade above Pre-Industrial. A similar decline this year will bring us close to the Paris Target.

As mentioned in earlier weather posts, the southern hemisphere Summer has been much cooler this year at the Five Stations. I’ll share the figures and graphs next week.

Today’s Image

Five years to the day after photographing him on Muston Sands, I bumped into Angus this morning in Crescent Gardens. I was perhaps rude to ask the elderly gentleman’s age – he’s fourteen now and still very active.

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