Fig. 4

The linear trends in Fig. 1 binned by each location’s November-March mean monthly temperature (°C) and total precipitation (mm). Temperature bins are 1 °C wide, and precipitation increments are 5, 10, 25, and 50 mm. As before, red is negative and blue is positive, and the size of the circle indicates the median trend in the bin. Bins with only one value are indicated by an open circle. Individual values are then combined using a distance-weighting scheme for contouring. Contour interval is 2.5% in the top panel (a) and 5% in the bottom panel (b), with ticks pointing downward (toward more negative values). The dashed box in the lower panel indicates the range of the top panel