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Category Archives: northern California
San Francisco Minimum Temperature Records – Downtown vs Airport
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
Hard freeze hits San Francisco Bay Area, 17 January 2012
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
Posted in northern California
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May-June 2011 temperatures across the West
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
Squaw Valley CA 2010-11 snowfall reaches 810 inches
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
Posted in northern California
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Bishop California reports 25 F on 2 June 2011
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
Update: Colder over Oakland, snow at Donner Pass
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
Posted in northern California
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Snowy afternoon in mid-May at Lake Tahoe
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
Posted in northern California
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Cold over Oakland California today
-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
Posted in northern California
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The end of the California Drought
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