Weather Data

Weather data for California Climate Zones are available below. The original source data are described on the Weather Data Sources page.
Learn more about the weather files.

All Regions : North and Central America WMO Region 4 : California Climate Zones

CZ01RV2 ZIP - CZ01RV2 ZIP 
CZ02RV2 ZIP - CZ02RV2 ZIP 
CZ03RV2 ZIP - CZ03RV2 ZIP 
CZ04RV2 ZIP - CZ04RV2 ZIP 
CZ05RV2 ZIP - CZ05RV2 ZIP 
CZ06RV2 ZIP - CZ06RV2 ZIP 
CZ07RV2 ZIP - CZ07RV2 ZIP 
CZ08RV2 ZIP - CZ08RV2 ZIP 
CZ09RV2 ZIP - CZ09RV2 ZIP 
CZ10RV2 ZIP - CZ10RV2 ZIP 
CZ11RV2 ZIP - CZ11RV2 ZIP 
CZ12RV2 ZIP - CZ12RV2 ZIP 
CZ13RV2 ZIP - CZ13RV2 ZIP 
CZ14RV2 ZIP - CZ14RV2 ZIP 
CZ15RV2 ZIP - CZ15RV2 ZIP 
CZ16RV2 ZIP - CZ16RV2 ZIP 

File Information

Each file is named using the ISO standard three-letter country abbreviation (i.e. CUB for Cuba), followed by the location name, World Meteorological Organization designation (WMO) and the source format (CTZ2, CWEC, CityUHK, CSWD, CTYW, ETMY, IGDG, IMGW, IMS, INETI, ISHRAE, ITMY, IWEC, KISR, NIWA, RMY, SWEC, SWERA, or TMY3). Thus,

CUB_Havana.782240_IWEC.zip — is the ASHRAE International Weather for Energy Calculations (IWEC) data for Havana, Cuba, WMO 782240.

The compressed file (ZIP) which contains the following files for the location:

  • EnergyPlus weather files (EPW)
  • A summary report on the data (STAT)
  • An ASHRAE Design Conditions Design Day Data file (DDY).