San Diegans, yes, your body thermostats are operating properly. The nights have been hot. Extremely hot. Record-breaking hot.

San Diego has just had what is likely to go down as the warmest August night in city history. The low after 12:01 a.m. on Thursday was 77 degrees. No other August night has been that warm, going back to 1874.

(National Weather Service forecasters did not expect the low to drop below 77 before midnight Thursday, which is the cut-off time for official daily records.)