Rainfall tends to be associated with Atlantic depressions or with convection. The Atlantic depressions are more vigorous in autumn and winter and most of the rain which falls in those seasons in the south-west is from this source. Average annual rainfall is around 980 millimetres (39 in). November to March have the highest mean wind speeds, with June to August having the lightest winds. The predominant wind direction is from the south-west. COUNT 5
QSN1 Along with convection, what provokes rain in the Plymouth area? ANS1 Atlantic depressions QSN2 Along with winter, in what season are Atlantic depressions most prevalent? ANS2 autumn QSN3 About how many inches of rain fall on Plymouth every year? ANS3 39 QSN4 Along with March, what month has the fastest winds on average? ANS4 November QSN5 From what direction do most of the winds blow on Plymouth? ANS5 south-west