"For some years now I’ve been saying that the largest warming is occurring in the colder latitudes, at night, in the winter.
... Overall, here are the decadal trends in the maximum temperatures. I’ve used Berkeley Earth data, although I strongly suspect it exaggerates the warming, for a couple of reasons.
First, all the records seem to exaggerate the warming, and second, I’m interested in relative trends, not absolute trends.
We can see that the greatest change in maximum temperature is in the northern hemisphere (0.23°C/decade), with the arctic warming the fastest.
... the minimum temperatures in the northern hemisphere are indeed warming fastest.
They are also warming faster than the maximum temperatures (0.25°C/decade vs. 0.23°C/decade).
Finally, I took a look at the summer and winter trends by latitude.
... The largest warming is indeed in the northern latitudes in the winter, at night (dark blue line).
Second largest warming is same location, same season, during the day.
... the winter warming is increasing as you go north of about 45°N latitude.
Note that at about 45°N latitude (thin blue vertical line), approximately where the increased warming starts, the daytime temperature averages just below freezing, and the nighttime temperature average is -13°C (9°F) … cold.
This is good news, because I doubt if the people in Vladivostok are going to be unhappy with slightly warmer winter nights … or days, for that matter." ...
