The unusual temperatures are the result of high pressure aloft combined with weak but warm offshore winds, Thompson said.
Temperatures ranged about 20 degrees above normal Wednesday, and heat records began falling around midday.
Fresno reached 76 degrees in the 3 o'clock hour Wednesday, according to the National Weather Service.
Previously, the record for November 24 was 59 degrees, set in 1990 and 2011, the weather service said. A freeze warning means the temperature could drop to 32 degrees Fahrenheit or lower, and the Weather Service advises people to take care with portable heaters, keep pets indoors and mind sensitive plants. It will be cooler than Wednesday - especially along the coast - but still hot and dry.
Meanwhile an all-time high for November was recorded at the Camarillo Airport, where temperatures reached a staggering 99 degrees.
Thanksgiving forecast looks cool, storm
This will usher in mild air and should allow our high temperatures to climb back into the mid 50s. As the front clears, we cool down for Wednesday with mostly sunny skies and a brisk north breeze.
Next week, forecasters are predicting a week of mild temperatures, with highs reaching the upper 30s and lower 40s.
Records were also set in Long Beach, where the temperature reached 96 and topped the 2015 record of 88.
Let's just say we hit 90 degrees in Tucson; after all that's only one degree away from the forecast high.
Heat records also are set to be eclipsed Thursday in San Diego and Riverside counties, too.