Fig. 4
From: Climate effects on the onset of flowering in the United Kingdom
UK mean daily temperatures of January–April for the period 1950–2017, with the annual averages (blue dots) based on E-OBS data from all UK gridcells (Fig. 2). The average of the climate normal period 1961–1990 is indicated by a blue dashed line, the trend over 1950–2017 as a red dashed line; 2006, representing the climate normal is indicated by a blue circle, and 2007, representing a warm spring, is indicated by a red circle