On this day in…
2001: A heat wave started on this day and ended on 5.9. Temperatures hit 109° at Palm Springs, Thermal, and Borrego Springs, 103° at Hemet, and 102° at San Bernardino.
1976: 1.11 inches of rain fell in Palm Springs, the greatest daily amount on record for May.
1964: It was 36° in Palm Springs, the lowest temperature on record for May.