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PNW Data Archive: Historical

Gridded and time series data are provided here for climate and natural resource-related variables in the Pacific Northwest (PNW) and in the western US. The CIG has devoted considerable research efforts to generate climate variables projected by climate models. The databases provided here from CIG studies consist of internally consistent climate variables for large scale, landscape level analyses. These studies were developed to meet the needs of natural resource managers and support efforts to incorporate climate change scenarios into their operations and management plans. The datasets listed here are predominantly from three CIG projects:

Both projects contain climate variables for the historical (1915 - 2006) time period and for three future time periods.

This page also contains observed datasets from other sources that have been used by the CSES staff in studies and formatted for user ease.

 

Washington Climate Change Impacts Assessment

The projections listed in the table below were developed and used for the statewide assessment of climate change completed in 2009. These projections of temperature and precipitation are the downscaled climate data from 20 global climate models and two emissions scenarios released in the 2007 IPCC AR4 report. The 20th century simulations are also available from the page linked above.

Name Temporal
Resolution
Spatial
Resolution
Range of Years Comments
Climatic Data
Precipitation Seasonal, Annual PNW region-wide average 1915 - 2006
Temperature Seasonal, Annual PNW region-wide average 1915 - 2006

Columbia Basin Climate Change Scenarios Project

This project provides a comprehensive suite of historical and 21st century hydroclimatological scenarios for the Columbia River basin and coastal drainages in OR and WA. Datasets are available as sub-basin averages for the 297 sites shown in Figure 1 and as gridded data at 1/16 degree spatial resolution. Monthly and daily time series are provided.

click image to enlarge

CBCCSP sites

Figure 1 The PNW area covered by the CBCCSP. Red dots indicate sites where observed data is available for calibrated ("bias-adjusted") sub-basin estimates. Yellow dots indicate sites where observed data is unavailable and sub-basin averages are uncalibrated (or "raw").

Name Temporal
Resolution
Spatial
Resolution
Range of Years Comments
Climatic Data
Precipitation Daily, Monthly 1/16º, Sub-basin average 1915 - 2006
Temperature Daily, Monthly 1/16º, Sub-basin average 1915 - 2006
Hydrologic Data
Streamflow (raw) Daily, Monthly Sub-basin average 1915 - 2006
Streamflow (bias-adjusted) Daily, Monthly Sub-basin average 1915 - 2006
Combined flow Monthly Sub-basin average 1915 - 2006
Flood statistics Daily Sub-basin average 1915 - 2006
Low flow statistics Daily Sub-basin average 1915 - 2006
Streamflow Monthly Sub-basin average 1915 - 2006
Snow water equivalent Daily, Monthly 1/16º, Sub-basin average 1915 - 2006
Runoff Daily, Monthly 1/16º 1915 - 2006
Baseflow Daily, Monthly 1/16º 1915 - 2006
Snow depth Daily, Monthly 1/16º 1915 - 2006
Vegetative/Soil/Atmospheric Data
Evapotranspiration Daily, Monthly Sub-basin average 1915 - 2006
Potential Evapotranspiration (5 variables) Daily, Monthly 1/16º, Sub-basin average 1915 - 2006
Soil Moisture (3 variables) Daily, Monthly 1/16º, Sub-basin average 1915 - 2006
Outgoing longwave radiation Daily, Monthly 1/16º 1915 - 2006
Incoming shortwave radiation Daily, Monthly 1/16º 1915 - 2006
Relative humidity Daily, Monthly 1/16º 1915 - 2006
Vapor pressure deficit Daily, Monthly 1/16º 1915 - 2006

Regional Climate and Hydrologic Change in the Western US

This project provides consistent historical and future downscaled climate and hydrologic data and projections for four major basins in the western US - excluding those in California (Figure 2). The four major western basins include the Columbia River, the Upper Missouri River, the Colorado River and the Great Basin. To meet the needs of data users, the data have been summarized into daily and monthly summaries, aggregated into spatial subregions and formatted for time series and gridded (compatible with ArcGIS) analyses.

click image to enlarge

R1/R6 sites

Figure 2 The four major western basins covered in the Regional Climate and Hydrologic Change in the Western US.

Name Temporal
Resolution
Spatial
Resolution
Range of Years Comments
Climatic Data
Precipitation Daily, Monthly 1/16º, 1/8º 2040s, 2080s *This project provides data for the Great Basin at the 1/8º spatial resolution only. All other basins are available at the 1/16º resolution.
Temperature Daily, Monthly 1/16º, 1/8º 2040s, 2080s
Hydrologic Data
Snow water equivalent Monthly 1/16º, 1/8º 1915 - 2006
Runoff Monthly 1/16º, 1/8º 1915 - 2006
Baseflow Monthly 1/16º, 1/8º 1915 - 2006
Snow depth Monthly 1/16º, 1/8º 1915 - 2006
Vegetative/Soil/Atmospheric Data
Evapotranspiration Monthly 1/16º, 1/8º 1915 - 2006
Potential Evapotranspiration (5 variables) Monthly 1/16º, 1/8º 1915 - 2006
Soil Moisture (3 layers) Monthly 1/16º, 1/8º 1915 - 2006
Outgoing longwave radiation Monthly 1/16º, 1/8º 1915 - 2006
Incoming shortwave radiation Monthly 1/16º, 1/8º 1915 - 2006
Relative humidity Monthly 1/16º, 1/8º 1915 - 2006
Vapor pressure deficit Monthly 1/16º, 1/8º 1915 - 2006

Other data sources

Precipitation Data

Name Temporal
Resolution
Spatial
Resolution
Range of Years Comments
Gridded Data
NCEP "unified" daily, monthly 0.25, 1° 1948-98 Contiguous U.S., and
40-50N,125-110W
University of Washington daily "50" km 1949-94 Washington and Oregon
Individual Stations
World Monthly Surface Station Climatology (WMSSC) Monthly   Varies by station Years and months of data
Seattle, Washington Monthly   1878-1990  
Olga, Washington (Orcas Island) Monthly   1890-1994  
Averages of Station Data
Northeastern Washington State Monthly   1931-96  
Puget Sound Lowland (Washington State) Monthly   1931-2009  

Air Temperature

Name Temporal
Resolution
Spatial
Resolution
Range of Years Comments
Climate Division Data
Digital values for numerous stations (WMSSC) Climatology Station data Varies by station  
Northeastern Washington State Monthly Averaged over climate division 1931-96  
Olga, Washington (Orcas Island) Monthly Station data 1892-1994  
Puget Sound Lowland (Washington State) Monthly Averaged over climate division 1931-2009  

Water Temperature

Name Temporal
Resolution
Spatial
Resolution
Range of Years Comments
PNW stream temperature Weekly Station data 1950-2006 summertime
Neah Bay, Washington Monthly Station data 1935-1993  

Snow Depth

Name Temporal
Resolution
Range of Years Comments
Mt. Hood Meadows, Oregon For the first of each month, January-May 1939-present  
Paradise Ranger Station, Mt. Rainier, Washington Annually on March 15th 1916-1995  
Stevens Pass, Washington For the first of each month, January-May 1944-1992  
Various stations Daily and monthly various SNOpack TELemetry (SNOTEL) 

Glacier Mass Balance / Length (Washington state)

Name Temporal
Resolution
Range of Years Comments
Blue Glacier, Olympics Annual 1956-99  
North Cascade Glacier Annual 1984-present  
South Cascade Glacier Annual 1953-2005, update  

Streamflow

Name Temporal
Resolution
Range of Years Comments
Columbia River at The Dalles, Oregon Monthly 1878-2010  
Various Oregon rivers Daily and monthly various-present  
Hoh River, Washington Monthly 1926-1964, 1960-2010  
Okanogan River, Washington Monthly 1912-1988  
Quinault River at Quinault, Washington Monthly 1912-2007  
Sauk River near Darrington, Washington Monthly 1918-2010  
Skykomish River at Gold Bar, Washington Monthly 1929-1993  
Spokane River in Spokane, Washington Monthly 1891-2010  
Stehekin River, Washington Monthly 1910-2010  
Various Washington rivers Daily and monthly various-present  
Various Idaho rivers Daily and monthly various-present  
Various Montana rivers Daily and monthly various-present  
Columbia and Snake River flow reconstructions from tree rings Annual    

Land Surface Hydrology

Name Temporal
Resolution
Spatial
Resolution
Range of Years Comments
Variable Infiltration Capacity (VIC) hydrological model input and derived data Three-hourly, Daily, Monthly 1/8º 1950-July2000 Internally-consistent data for the contiguous U.S. Includes meteorological (e.g., precipitation, temperature, radiation), water balance (e.g., evaporation, runoff, soil moisture, snow water equivalent) and energy balance (e.g., latent, sensible, and ground heat flux) variables

For Assistance

If you need any assistance downloading or using this data, contact Todd Mitchell (mitchell@atmos.washington.edu).