Category Archives: northern California

San Francisco Minimum Temperature Records – Downtown vs Airport

Posted on 6 June 2015 by Mark Albright

There seems to have been some strange climate change at work across San Francisco since 2000.  Daily minimum temperature records are very difficult to achieve at the airport in this the 21st century but still quite common in downtown San … Continue reading →

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Hard freeze hits San Francisco Bay Area, 17 January 2012

Posted on 17 January 2012 by Mark Albright

Temperatures reached into the high teens and low 20s in parts of the SF Bay Area this morning (17 Jan 2012): *Napa 1 E: 16.6 F Vacaville: 18 Fairfield: 18 Napa Airport: 19 Santa Rosa: 21 Livermore: 24 * Reported … Continue reading →

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May-June 2011 temperatures across the West

Posted on 12 June 2011 by Mark Albright

The Eagle AK coop site (1949-present) near the Yukon River has never reported a temperature below 31 F this late in June.  Yet today, the nearby Eagle AK ASOS site observed a minimum temperature of 28 F, the 1st subfreezing … Continue reading →

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Squaw Valley CA 2010-11 snowfall reaches 810 inches

Posted on 12 June 2011 by Mark Albright

For the 1st time in the historical record the winter snowfall reached 700 inches in early April at Squaw Valley CA near Lake Tahoe.  From the Squaw Valley snow report on 7 April 2011: Thank you Mother Nature!  Squaw Valley … Continue reading →

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Bishop California reports 25 F on 2 June 2011

Posted on 3 June 2011 by Mark Albright

Bishop CA yesterday (2 June 2011) morning reported 25 F, the coldest June temperature on record (back to 1948).  The previous latest date to drop down to 25 was just last year when 25 F was reported on 22 May … Continue reading →

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Update: Colder over Oakland, snow at Donner Pass

Posted on 15 May 2011 by Mark Albright

UPDATE: Even colder air has moved in over Oakland late this afternoon with -31 C reported at 500 hPa, the coldest May sounding in at least the past 12 years.  Nearly a foot of new snow has fallen today at … Continue reading →

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Snowy afternoon in mid-May at Lake Tahoe

Posted on 15 May 2011 by Mark Albright

Here’s something you don’t see very often in mid-May, falling snow and 27-30 degrees at Lake Tahoe throughout this afternoon.  Here are the hourly observations from South Lake Tahoe Airport: DY STA   TP HHMM N CIG VSBY    WEA   SLP    T  … Continue reading →

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Cold over Oakland California today

Posted on 15 May 2011 by Mark Albright

-30 C at 500 hPa over Oakland CA this morning (15 May 2011) is a rather unusually cold temperature for that location.  I went back and checked May over the past 12 years back to 1999 and found only one … Continue reading →

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The end of the California Drought

Posted on 13 April 2011 by Mark Albright

Remember the headlines from two years ago like this one in USA Today: http://www.usatoday.com/weather/drought/2009-01-30-california-drought_N.htm Dire warnings were issued two years ago in January 2009 with the California Department of Water Resources director declaring: “We may be at the START of … Continue reading →

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