But as if the events of 2017-2018 were not enough, the warmth has kicked it up another notch since the middle of last winter, as each of the last 6 months has been at least 10°F warmer than normal. Remarkably, Kotzebue hasn't seen a single day below normal since March 18, and that was only by a fraction of a degree; the last "significant" cold spell was in the first half of January. Daily temperatures have been frequently more than 1 standard deviation above the daily normal, and it is becoming unusual to see a day that is not in that upper 15% of the climatological distribution (above +1SD).
Here's one more statistic to illustrate how warm it's been this summer so far: Kotzebue has seen 16 days this year with a daily minimum temperature at or above 60°F. That's easily a record for any year, and it's more than occurred in total in the 3 decades from 1940 to 1970. They even managed a daily minimum of 69°F on July 9 this year, which is an all-time record high value and more typical of the tropics than the Arctic.