Stations: GHCND:USW00023174 - LOS ANGELES INTERNATIONAL AIRPORT, CA US GHCND:USC00047888 - SANTA ANA FIRE STATION, CA US GHCND:USC00046719 - PASADENA, CA US GHCND:USC00111577 - CHICAGO MIDWAY AIRPORT 3 SW, IL US GHCND:USW00014739 - BOSTON LOGAN INTERNATIONAL AIRPORT, MA US Data Types: TMAX - Maximum temperature (tenths of degrees C) TOBS - Temperature at the time of observation (tenths of degrees C) TMIN - Minimum temperature (tenths of degrees C)