Since it's still July (just) here in sun-drenched England (or possibly just "drenched"), I thought I'd have a quick decko at NSIDC's 5-day Charctic can show how many annual minimums (since 1979) have already been beaten this early in the 2017 melt season...
1979, 1980, 1981, 1982, 1983
1986, 1987, 1988, 1989
1992
1994
1996
Those digit counters are going to continue to fall (with apologies to The Who), and, in a few weeks time, it should start to become clear just how bad it's going to get.