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San Jose, Santa Rosa, and Napa had all-time record high temperatures.
San Jose had a high on Tuesday of 109 degrees, beating the old record of 108 degrees set in 2017.
Santa Rosa had a high of 115 degrees, beating the old record of 113 degrees all the way back in 1913.
Napa had a high of 114 degrees, beating the old record of 113 degrees from over 60 years ago in 1961.
Two other cities tied their all-time records.
Livermore recorded an astounding 116 degrees, which it also recorded yesterday. This is the Bay Area's all-time hottest temperature, according to Meteorologist Mike Nicco.
Redwood City also tied it's record at 110 degrees.
San Francisco came just two degrees shy of its record high of 100 degrees.
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Some cities also reached record low warm temperatures, as the day started out very hot, with more cities expected to break records on Wednesday.
Livermore's low was 74 degrees beating a record low of 71 degrees on this day in 1998.
San Jose had a low temperature of 75 degrees early Tuesday, surpassing its 1998 record low warmth record of 70 degrees on this date.
Napa, SFO, and Oakland were all within one degree of record-breaking warm low temperatures.
It is a Spare the Alert day again, but it now has been extended through Wednesday amid the triple-digit heat wave.
There is also a Heat Advisory and an Excessive Heat Warning through Thursday evening.
HEAT ADVISORY: Until Thursday 8 p.m.
Highs: 95-103 across Marin Coastal Range, San Francisco Bay Shoreline.
EXCESSIVE HEAT WARNING: Until Thursday 8 p.m.
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