Decembers HLA, 2010-2016
For my weather pages.
December's temperature trend seems to be up-and-down. I'm guessing December 2015 will be colder.
UPDATE: I was incorrect on my 2015 guess. This image is now updated to include 2015, in which December was warmer, breaking the down-up pattern of the past five years.
UPDATE: It turned out to be 2016's December that was colder.
UPDATE: And 2017 was colder too. So the pattern I'd originally detected was *not* a long-term trend. Since then, we've seen December go up TWICE and then down TWICE.