the rainy season starts in oregon in november.
when does the rainy season start in oregon?
november
depending on the region, the onset of the rainy season (defined as when the monthly average precipitation exceeds ) differs: in the north west and north east, the rainy season beings in april–may with a peak in july–august and ends in september and october. in the red river delta (north delta), the rainy season beings in april–may with a peak in july–august and ends in october and november. on the north central coast, the rainy season begins in august and september, reaching a peak in october and november before ending in november and december. for the south central coast, the rainy season begins in august and september, reaching a peak in october and november before ending in december. in the central highlands, the rainy season begins in april and may that peaks in august before ending in october and november. finally, the south has its rainy season beginning in may that peaks in september before ending in november.
climate of vietnam
in some years, the rainy season's actual beginning and end are under debate. for example, in 2005, the subtropical ridge moved quickly northward in late june/early july. the weather front skipped the chang jiang region and there was no rainy season there. then, the ridge retreated southward and there was significant rainfall in the region. this gave rise to the question of whether this was the summer-type rainfall pattern that is common after the first rainy season or the second rainy season. some meteorologists even argued that the rainy period in late june was not a true rainy season.
east asian rainy season