Fresno's high temperature of 102 degrees on Thursday tied the record set in 1927, the National Weather Service in Hanford said.
Breaking into triple digits for the first time since September, meteorologist Jim Anderson said the weather was "on pace with last year." The first day over 100 degrees in 2013 was May 12.
While Friday will still be hot at 99 degrees in the Fresno area, Anderson said a low pressure ridge is moving in and will bring cooler temperatures heading into next week.
The change could start as soon as Friday, Anderson said, "but the main effect won't take place until Saturday evening."
Saturday's high is expected at 91 before dropping into the 80s on Sunday and Monday. While Tuesday's high is expected at 79 degrees, the temperature will again start to increase later in the week, Anderson said.
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