Climate Data & Projections

Native Waters team members Dr. Michael Dettinger and Dr. Christine Albano have prepared climate data and projections for temperature, precipitation, and other metrics for multiple reservations in the Great Basin and Southwestern US.

The projections, which are constructed using 15 climate models and two emissions scenarios, extend through the year 2100 and show increases in temperature at all ten reservations, changes in precipitation that vary by location (wetter in northern locations/drier in southern locations), and increases in precipitation extremes (floods and droughts). Explore the links below to view the projections as PDFs or to download raw data.

Blackfeet Indian Reservation (MT)

Climate data and projections for the years 1950 – 2090 for: Annual end of growing season, annual growing season length, annual start of growing season, number of 2-yr storm events, number of 5-yr storm events, number of 10-yr storm events, number of frost-free days, annual day of first snowfall, annual growing degree days, annual number of hot days, annual maximum 3-day precipitation, annual number of dry days, total annual precipitation, annual precipitation intensity, annual average temperature, and snow precipitation.

Colorado River Indian Tribes (CRIT) Reservation (AZ)

Climate data and projections for temperature and precipitation from 1950 – 2100. These projections are constructed using 15 climate models and two emissions scenarios.


Projected daily values for maximum and minimum temperatures and precipitation totals. These files contain daily values from 1950 to 2005 in the historical files, and 2006 to 2099 or 2100 (depending on the model) for the rcp45 and rcp85 files. For more information on these files, see the readme document.

Duck Valley Reservation (ID/NV)

Climate data and projections for temperature and precipitation from 1950 – 2100. These projections are constructed using 15 climate models and two emissions scenarios.


Projected daily values for maximum and minimum temperatures and precipitation totals. These files contain daily values from 1950 to 2005 in the historical files, and 2006 to 2099 or 2100 (depending on the model) for the rcp45 and rcp85 files. For more information on these files, see the readme document.

Duckwater Reservation (NV)

Climate data and projections for temperature and precipitation from 1950 – 2100. These projections are constructed using 15 climate models and two emissions scenarios.


Projected daily values for maximum and minimum temperatures and precipitation totals. These files contain daily values from 1950 to 2005 in the historical files, and 2006 to 2099 or 2100 (depending on the model) for the rcp45 and rcp85 files. For more information on these files, see the readme document.

Fort Apache Indian Reservation (AZ)

Climate data and projections for the years 1950 – 2090 for: Annual end of growing season, annual growing season length, annual start of growing season, number of 2-yr storm events, number of 5-yr storm events, number of 10-yr storm events, number of frost-free days, annual day of first snowfall, annual growing degree days, annual number of hot days, annual maximum 3-day precipitation, annual number of dry days, total annual precipitation, annual precipitation intensity, annual average temperature, and snow precipitation.

Gila River Indian Community (AZ)

Climate data and projections for temperature and precipitation from 1950 – 2100. These projections are constructed using 15 climate models and two emissions scenarios.


Projected daily values for maximum and minimum temperatures and precipitation totals. These files contain daily values from 1950 to 2005 in the historical files, and 2006 to 2099 or 2100 (depending on the model) for the rcp45 and rcp85 files. For more information on these files, see the readme document.

Hopi Reservation (AZ)

Climate data and projections for temperature and precipitation from 1950 – 2100. These projections are constructed using 15 climate models and two emissions scenarios.


Projected daily values for maximum and minimum temperatures and precipitation totals. These files contain daily values from 1950 to 2005 in the historical files, and 2006 to 2099 or 2100 (depending on the model) for the rcp45 and rcp85 files. For more information on these files, see the readme document.

Navajo Nation (AZ)

Climate data and projections for temperature and precipitation from 1950 – 2100. These projections are constructed using 15 climate models and two emissions scenarios.


Projected daily values for maximum and minimum temperatures and precipitation totals. These files contain daily values from 1950 to 2005 in the historical files, and 2006 to 2099 or 2100 (depending on the model) for the rcp45 and rcp85 files. For more information on these files, see the readme document.

Pyramid Lake Reservation (NV)

Climate data and projections for temperature and precipitation from 1950 – 2100. These projections are constructed using 15 climate models and two emissions scenarios.


Projected daily values for maximum and minimum temperatures and precipitation totals. These files contain daily values from 1950 to 2005 in the historical files, and 2006 to 2099 or 2100 (depending on the model) for the rcp45 and rcp85 files. For more information on these files, see the readme document.

San Carlos Apache Reservation (AZ)

Climate data and projections for the years 1950 – 2090 for: Annual end of growing season, annual growing season length, annual start of growing season, number of 2-yr storm events, number of 5-yr storm events, number of 10-yr storm events, number of frost-free days, annual day of first snowfall, annual growing degree days, annual number of hot days, annual maximum 3-day precipitation, annual number of dry days, total annual precipitation, annual precipitation intensity, annual average temperature, and snow precipitation.

Uintah and Ouray Indian Reservation (UT)

Climate data and projections for temperature and precipitation from 1950 – 2100. These projections are constructed using 15 climate models and two emissions scenarios.


Projected daily values for maximum and minimum temperatures and precipitation totals. These files contain daily values from 1950 to 2005 in the historical files, and 2006 to 2099 or 2100 (depending on the model) for the rcp45 and rcp85 files. For more information on these files, see the readme document.

Walker River Indian Reservation (NV)

Climate data and projections for temperature and precipitation from 1950 – 2100. These projections are constructed using 15 climate models and two emissions scenarios.


Projected daily values for maximum and minimum temperatures and precipitation totals. These files contain daily values from 1950 to 2005 in the historical files, and 2006 to 2099 or 2100 (depending on the model) for the rcp45 and rcp85 files. For more information on these files, see the readme document.

Zuni Indian Reservation (NM)

Climate data and projections for temperature and precipitation from 1950 – 2100. These projections are constructed using 15 climate models and two emissions scenarios.


Projected daily values for maximum and minimum temperatures and precipitation totals. These files contain daily values from 1950 to 2005 in the historical files, and 2006 to 2099 or 2100 (depending on the model) for the rcp45 and rcp85 files. For more information on these files, see the readme document.