Table S1.

Locations and mean annual climate parameters for all study watersheds

RegionStateNo. of treesProperty nameLatitudeLongitudeElevation, mAnnual precipitation, cmAnnual maximum temperature, °CAnnual minimum temperature, °C
Pacific NorthwestWashington76North Cascades National Park48.94038−121.400101,04819710.01.1
Pacific NorthwestWashington70Olympic National Park47.74623−123.206051,03118810.52.3
Pacific NorthwestWashington72Olympic National Park47.82603−123.9962053133714.04.9
Pacific NorthwestWashington67North Cascades National Park48.30747−120.6566098910611.51.2
Pacific NorthwestOregon85HJ Andrews Experimental Forest44.23159−122.133551,17923513.73.0
Northern RockiesMontana81Glacier National Park48.58777−113.884101,3238710.4−1.6
Northern RockiesMontana68Glacier National Park48.49320−113.359141,7271018.7−1.4
Northern RockiesIdaho70Idaho Panhandle National Forest48.98723−116.627311,1778410.70.7
Northern RockiesIdaho71Idaho Panhandle National Forest48.82964−116.460361,2588910.51.0
Central RockiesIdaho72Payette National Forest45.13659−116.418321,91112010.3−2.2
Central RockiesMontana92Gallatin National Forest45.87449−110.896571,9867110.0−3.2
Central RockiesOregon31Umatilla National Forest44.99897−118.986609624316.61.3
Central RockiesOregon74Wallowa-Whitman National Forest45.71603−117.405131,68913010.40.5
Southern RockiesWyoming83Bridger-Teton National Forest43.48059−110.706582,3006910.0−3.3
Southern RockiesColorado89Gunnison National Forest38.44524−106.363302,9886510.0−4.6
Southern RockiesColorado59Roosevelt National Forest40.42530−105.325922,1454714.80.9
CaliforniaCalifornia72UC Angelo Reserve39.72647−123.6334952720919.55.6
CaliforniaCalifornia57BLM Headwaters Reserve40.64037−124.0771948515018.67.5
CaliforniaCalifornia91Plumas National Forest39.94591−121.099041,40511717.63.6
CaliforniaCalifornia41Stanislaus National Forest37.97359−120.073211,28211118.95.2
SouthwestArizona40Grand Canyon National Park36.24806−112.041882,5266514.2−0.2
SouthwestNew Mexico74Valles Caldera National Preserve35.98106−106.592042,8506911.7−1.1
SouthwestNew Mexico30Chama River Wilderness36.27471−106.615082,4245215.21.7
SouthwestUtah43Henry Mountains38.06987−110.794832,9207311.0−2.0