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San Francisco Weather

Sunny, warm weather in early fall is a hallmark of the Pac-NW, but our southern cousins in San Francisco just endured the coldest Sept. in a century — with an average temperature of 58.1 F.

Enjoying the sunshine?

That sunny, warm weather in early fall is a hallmark of El Niño years in the Pac-NW, when wet weather shifts southwards and Seattle experiences above-average temperatures and below-average precipitation. An "El Niño" pattern hasn't officially been recognized, but it seems a foregone conclusion after our southern cousins in San Francisco just endured the coldest Sept. in a century — with an average temperature of 58.1 F.

This comment by Research Meteorologist Mark Albright of the University of Washington is pretty interesting, since Seattle is having such a great late summer and fall!!

"Downtown San Francisco has just endured the coldest September of the past century with an average temperature of 58.1 F, which beat out the previous record set 50 years ago (1962) of 58.3 F.  The temperature failed to reach above 70 F all month until the final day (Sunday) when the temperature soared to 84 F!  The September record high temperature for downtown San Francisco is 101 F set 41 years ago on 14 Sept 1971.  I can vouch for that as I was in nearby Healdsburg (60 miles N of SF), where the temperature reached 114 F on 13 Sept 1971 and 113 F on 14 Sept 1971, the warmest temperatures I have ever experienced."

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