It’s 12:30 here and still 78F with 74%RH. It’s as bad as last night, which had higher RH but cooler temps.

Lots of records fell yesterday, especially for highest minimum temps:

SXUS76 KSGX 110024
RERSGX

RECORD EVENT REPORT…FINAL
NATIONAL WEATHER SERVICE SAN DIEGO CA
520 PM PDT THU SEP 10 2015

…HIGHEST MAXIMUM TEMPERATURE RECORDS BROKEN OR TIED ON SEP 10 2015 …

LOCATION NEW RECORD OLD RECORD PERIOD OF RECORD

SAN DIEGO 96 95 IN 1878 1875
NEWPORT BEACH 89 87 IN 2004 1921
CHULA VISTA 94 90 IN 1990 1918


…HIGHEST MINIMUM TEMPERATURE RECORDS BROKEN OR TIED ON SEP 10 2015 …

LOCATION NEW RECORD OLD RECORD PERIOD OF RECORD

SANTA ANA 76 TIED 76 IN 1984 1906
SAN DIEGO 77 76 IN 1984 1875
OCEANSIDE HARBOR 75 TIED 75 IN 1984 1909
VISTA 76 72 IN 1984 1957
CHULA VISTA 75 72 IN 1984 1918
RIVERSIDE 76 72 IN 2012 1893
ESCONDIDO 78 74 IN 1984 1893
RAMONA 70 65 IN 2008 1974
ALPINE 74 TIED 74 IN 1990 1951
PALM SPRINGS 84 TIED 84 IN 1997 1893
INDIO 86 85 IN 1971 1894
BORREGO 81 TIED 81 IN 2011 1942

I believe the increase in minimum temps is one of the expectations of global warming, as increased water content in the atmosphere will reduce night-time cooling as well as just the average temps being higher.