Since they are at the same latitude it is most likely that something else is making the temperature different than the intensity of insolation affecting the temperature in both areas.
Joaquin Phoenix lives in Los Angeles, California.
33o30'N
The approximate latitude and longitude of the Arizona State Capitol ... not Phoenix, the capital city, but the center of the cute little dome on the Capitol Building ... is 33.44813° north latitude 112.98702° west longitude.
Latitude: 33.448377° / Longitude: -112.074037°
372 miles
33.601666 n, 112.066035 w
West.
Phoenix, Arizona
Phoenix Nicholson was born on December 23, 2010, in Los Angeles, California, USA.
Phoenix Cirillo was born on August 24, 2007, in Los Angeles, California, USA.
The driving distance from Phoenix, Arizona to Los Angeles, California is 372 miles.
Phoenix AZ is on Mountain Standard time -- one hour later than Los Angeles. Therefore, at 9:30 in L.A., the time is 10:30 in Phoenix.