Figure : changes-in-growing-season-length-and-nighttime-temperatures

Lengthening of the Freeze-Free Period

Figure 18.3


This figure appears in chapter 18 of the Impacts, Risks, and Adaptation in the United States: The Fourth National Climate Assessment, Volume II report.

These maps show projected shifts in the date of the last spring freeze (left column) and the date of the first fall freeze (right column) for the middle of the century (as compared to 1979–2008) under the lower scenario (RCP4.5; top row) and the higher scenario (RCP8.5; middle row). The bottom row shows the shift in these dates for the end of the century under the higher scenario. By the middle of the century, the freeze-free period across much of the Northeast is expected to lengthen by as much as two weeks under the lower scenario and by two to three weeks under the higher scenario. By the end of the century, the freeze-free period is expected to increase by at least three weeks over most of the region. Source: adapted from Wolfe et al. 2018.b6e8b67c-7042-4b85-b432-033983875e14

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This figure was created on September 28, 2017.

This figure was submitted on December 03, 2018.

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