What was the max temp on August 28, 1968 in Walnut Creek, CA ?

The closest reporting station is in Concord. Which had a high temp of 92F. a href="http://www.wunderground.com/history/airport/KCCR/1968/8/28/DailyHistory.html?req_city=Walnut+Creek&req_state=CA&req_statename=California" rel="nofollow"http://www.wunderground.com/history/airp…/a