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CPC Precipitation and Temperature Outlooks

  • Description:

    View monthly, seasonal, 6-10 day, and 8-14 day outlooks for precipitation and temperature relative to climate normals.

  • Variables: Air temperature, Precipitation
  • Formats: Map, Text description
  • Timeframe: Seasonal Forecasts, Short-term Outlooks
  • Source: Climate Prediction Center (CPC)
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    Seasonal Accumulated Growing Degree Days

  • Description:

    View high resolution maps of the accumulated growing degree days (base 32, 41, and 50°F) for the current season. Differences from historical averages are also available.

  • Variables: Air temperature
  • Formats: Map
  • Timeframe: Historical, Real-time
  • Source: Oregon Climate Center
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    SPC Storm Events Database

  • Description:

    Search for notable storm events from 1950 to present across Washington including snowfall, high winds, extreme heat, flooding, marine hazards, and severe thunderstorms.

  • Variables: Air temperature, Coastal water levels (Waves/Surge/Tides), Fire, Heat, Precipitation, Runoff / Streamflow, Severe Weather, Wind
  • Formats: Text description
  • Timeframe: Historical
  • Source: SPC
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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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    Current Mountain Conditions (NRCS SWE Viewer)

  • Description:

    View the current and historical snow water equivalent percent of median map, along with other variables, for the western United States from 1980-present

  • Variables: Air temperature, Lakes / Reservoirs, Precipitation, Snowpack, Soils
  • Formats: Graph, Map
  • Timeframe: Historical, Real-time
  • Source: Natural Resources Conservation Service
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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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    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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    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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    CIG PNW Climate Projections Tool

  • Description:

    Explore various climate model projections from different CMIP experiments of annual and seasonal temperature and precipitation. Data is available for the 2050s and 2080s relative to 1950-1999 averages.

  • Variables: Air temperature, Precipitation
  • Formats: Graph
  • Timeframe: Long-term projections
  • Source: Climate Impacts Group
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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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