Western Regional Climate Center

Providing Climate Services Since 1986
About Us
  • WRCC Overview
  • WRCC Partners
  • Climate Center Personnel
  • Data Pricing & Formats
  • WRCC Citations
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Historical Data
  • Climate Summaries
  • Climate Maps
  • Comparative Tables
  • Climate Extremes
  • Narratives by State
  • Network Descriptions
Monitoring
  • Current Observations
  • Maps
  • Drought Monitoring
  • SPI Products
  • Forecasts
  • Western Monthly Climate Summaries
  • Western Quarterly Impacts & Outlooks
  • Alaska Quarterly Impacts & Outlooks
  • Pacific Regional Quarterly Impacts &
          Outlooks
  • US Climate Reference Network
Projects & Research
  • Data Projects
  • Research Projects
  • Rapid Response Projects
  • Climate Service Providers Database
Specialty Climate
  • Agriculture
  • Coastal
  • Educational K-12
  • ENSO
  • Marine
  • SOD Products
  • Solar
  • Travel
  • Water in the West
  • Wind
Weather
  • CEMP
  • Forecasts: NWS Western States
  • Latest NWS Observations
  • Radar Imagery (Conus)
  • RAWS
  • Snotel
  • Webcam at DRI
Station Metadata
  • NOAA Coop Stations
  • NRCS Snotel Stations
  • Surface Airways Network Stations
  • RAWS Network Stations
Terms & Acronyms
  • Climate & Weather Acronyms
  • AMS Glossary of Meteorology

Historical Climate Maps

Precipitation Frequency Maps for the Western U.S.
Source: NOAA Atlas 2 published in 1973

Climate Maps of the US