Notice that most of the cities with more rainfall are located east of the mississippi river, as shown in the map below made by climatologist brian brettschneider Analyze seattle's precipitation patterns and trends from 1978 to present View monthly and yearly rainfall data, historical precipitation records, and climate change effects on seattle's weather patterns. On average, seattle receives over 167 days of precipitation annually For comparison, here is some data from popular tourist destinations around the world In riyadh, saudi arabia, there are about 29 precipitation days annually, reflecting its dry desert environment.
Remarkably, despite being in a region known for its rainfall, the city observes just under nine days of rainfall on average per month, with the highest frequency in november at 9.1 days and the lowest in august at 2.8 days. Seattle averages 39.34 inches of precipitation a year, with the vast majority falling as rain instead of snow This page shows the average precipitation (including snowfall) in each month of the year in seattle, washington In an average year, at least 0.01 inches (0.25 mm) of precipitation falls on 150 days, more than nearly all u.s Cities east of the rocky mountains In november, seattle averages more rainfall than any other u.s
It also ranks highly in winter precipitation. Precipitation amounts to 39.4 inches per year So, it is at an intermediate level It ranges from 0.6 inches in the driest month (july) to 6.3 inches in the wettest one (november). Monthly temperature, precipitation and hours of sunshine A climate graph showing rainfall, temperatures and normals.
On average, seattle experiences 156 rainy days per year, with the heaviest rainfall typically occurring in january, march, november, and december While this number may seem high, seattle’s total annual precipitation of 38 inches is actually on par with the us average.
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