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Pacific Decadal Oscillation

  • Description:

    Plot the monthly Pacific Decadal Oscillation (PDO) index from 1854-Present. Click on “View Data” to view the numerical value of the PDO index for a given month.

  • Variables: ENSO and Global Climate Oscillations
  • Formats: Data, Graph
  • Timeframe: Historical, Real-time
  • Source: NCEI
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    Climate Mapping for a Resilient Washington

  • Description:

    Download maps, tables, graphs, and data of monthly, seasonal, and annual climate projections for a variety of key hazards and indicators.

  • Variables: Air temperature, Coastal water levels (Waves/Surge/Tides), Drought, Fire, Heat, Humidity, Runoff / Streamflow, Snowpack, Water temperature
  • Formats: Data, Graph, Map, Text description
  • Timeframe: Long-term projections
  • Source: UW Climate Impacts Group
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    Average Annual Statewide Temperature Graph Since 1895.

    NCEI Climate-at-a-Glance

  • Description:

    Graph, rank, and map monthly, seasonal, and annual average temperature and precipitation from 1895-present. View long term changes at the state, county, and other levels.

  • Variables: Air temperature, Drought, Precipitation
  • Formats: Data, Graph, Map
  • Timeframe: Historical
  • Source: NOAA National Centers for Environmental Information
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    West Wide Drought Tracker

  • Description:

    This tool allows the user to examine monthly time series and create maps of temperature, precipitation, or various drought indices (including Palmer Drought Severity Index and Standardized Precipitation Evapotranspiration Index) nationwide using PRISM data. Note: Requires creation of a free account for data access.

  • Variables: Air temperature, Drought, Evaporation / Transpiration, Precipitation
  • Formats: Data, Graph, Map
  • Timeframe: Historical, Real-time
  • Source: West Wide Drought Tracker
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    MRCC cli-MATE Tool

  • Description:

    Access hourly, daily, monthly, and seasonal raw climate data, as well as rankings, thresholds, and graphics through for cli-MATE. This is a powerful tool that we highly recommend.

  • Variables: Air temperature, Drought, Precipitation, Snowpack, Wind
  • Formats: Data, Graph, Map
  • Timeframe: Historical, Real-time
  • Source: Midwest Regional Climate Center (MRCC)cli-MATE Navigation Guide (list of data products available)
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    Climate Toolbox Seasonal Forecast Graphs

  • Description:

    Explore experimental 7-month forecasts of monthly precipitation and temperature relative to historical (1991-2020) normals. Click on “set location” on the initial pop-up message and then enter “Washington State” in the GeoLocation box to view projections for Washington State.

  • Variables: Air temperature, Precipitation
  • Formats: Data, Graph
  • Timeframe: Seasonal Forecasts
  • Source: Climate Toolbox
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    Community Collaborative Rain, Hail, and Snow Network (CoCoRaHS)

  • Description:

    View a map of daily precipitation, snowfall, and snow depth measurements from a large and growing network of backyard weather stations. Observers began taking measurements in WA state in June of 2008, and observations are updated daily.

  • Variables: Precipitation
  • Formats: Data, Map
  • Timeframe: Historical, Real-time
  • Source: CoCoRaHS
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    Climate Toolbox Climate Mapper

  • Description:

    Maps of recent, gridded conditions, as well as monthly and seasonal forecasts and long term climate projections on a seasonal and annual time scale.

  • Variables: Air temperature, Drought, Evaporation / Transpiration, Fire, Heat, Humidity, Precipitation, Snowpack, Soils, Sunlight / Infrared (Radiation), Wind
  • Formats: Data, Map
  • Timeframe: Historical, Long-term projections, Real-time, Seasonal Forecasts
  • Source: University of California Merced
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    UW Atmos Recent Timeseries Weather Observations across the NW

  • Description:

    Plot real-time and historical weather conditions for various stations in WA, OR, ID, and BC. Data are available from 1996-present.

  • Variables: Air temperature, Humidity, Precipitation, Pressure, Sunlight / Infrared (Radiation), Wind
  • Formats: Data, Graph
  • Timeframe: Historical, Real-time
  • Source: UW Atmospheric Sciences Department
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    CIG Probabilistic SLR Tool

  • Description:

    View maps and graphs of projected sea level rise on Washington shorelines out to the year 2150. This tool takes into account gradual land subsidence/uplift.

  • Variables: Coastal water levels (Waves/Surge/Tides)
  • Formats: Data, Graph, Map
  • Timeframe: Long-term projections
  • Source: Climate Impacts Group
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    CIG Extreme Precipitation Tool

  • Description:

    View projected changes in extreme precipitation metrics across the northwestern contiguous US and far southern B.C. Projections are available for different rainfall event durations (from 1 to 72 hours) and return intervals (from 2 to 100 years).

  • Variables: Precipitation
  • Formats: Data, Graph
  • Timeframe: Long-term projections
  • Source: Climate Impacts Group
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    NCEI Climate Normals Viewer

  • Description:

    View graphs and download data for annual, seasonal, monthly, daily, and hourly normals for temperature, precipitation, and snowfall from climate stations nationwide. Climate periods available for graphing and download include 2006-2020, 1991-2020, and 1981-2010.

  • Variables: Air temperature, Precipitation
  • Formats: Data, Graph
  • Timeframe: Historical
  • Source: NCEI
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    USGS National Climate Change Viewer: CMIP6-LOCA2

  • Description:

    View gridded historical and projected (1950-2100) daily minimum temperature, maximum temperature, and precipitation across North America from the LOCA2 dataset. Future projections are available for various emissions pathways (SSPs) and global warming levels using CMIP6 data.

  • Variables: Air temperature, Heat, Precipitation, Wind
  • Formats: Data, Graph, Map
  • Timeframe: Historical, Long-term projections
  • Source: USGS
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    Wind Rose Diagrams

  • Description:

    View monthly wind roses (diagrams showing the frequency of average wind direction and speed at a given location) for ASOS (airport) stations across Washington State. This tool also allows the user to download raw data and choose a custom time period to plot as well.

  • Variables: Wind
  • Formats: Data, Graph
  • Timeframe: Historical, Real-time
  • Source: Iowa Environmental Mesonet
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    PNW Trend Analysis Tool

  • Description:

    Graph monthly, seasonal, and annual trends in temperature, precipitation, and snowpack for stations across the Pacific Northwest.

  • Variables: Air temperature, Precipitation, Snowpack
  • Formats: Data, Graph, Map
  • Timeframe: Historical
  • Source: Washington State Climate Office PNW Trend Analysis Tool
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