That transition to warm happened sooner than the 2016 shift but still feel 2016 offers good benchmark this summer . Made it up to 80 yesterday, clouds will likely get in the way at matching that but as the ridge shifted east on guidance and now chance at 90s (barring clouds) Wed (5/19) - Sat (5/22). Models push 850 temps to >16C by Thu and near 18c Fri and Sat before storms arrive. Beyond there looks like a cool down 5/23 - 5/26 then some more warmth to end the month. We'll see if we turn noticeably wetter from this dry period come June.