Heat waves in NYC: 3+ days in a row at 90°F or hotter. Wed, Jun 26, 1901: 91°F / 72°F Thu, Jun 27, 1901: 91°F / 74°F Fri, Jun 28, 1901: 93°F / 75°F Sat, Jun 29, 1901: 95°F / 76°F Sun, Jun 30, 1901: 95°F / 79°F Mon, Jul 1, 1901: 100°F / 78°F Tue, Jul 2, 1901: 100°F / 82°F, 0.03″ rain Wed, Jul 3, 1901: 94°F / 76°F, 0.31″ rain Source: NOAA GHCN-Daily, Ny City Cntrl Park (USW00094728).