US GEOLOGICAL SURVEY, OREGON WATER SCIENCE CENTER
WATER AVAILABILITY REPORT FOR MARCH 2026
------------------- Change ---------------------
Monthly mean in dis- Accumulated Runoff
discharge charge For the Period
------------------- from Oct. to Mar.
NRCS Cubic Percent previous ---------------------
SWSI feet per of month Percent
Station Basin second average (percent) of average
------------------------------------------------------------------------------------------
Donner Und Blitzen Harney 99 71 68 94
nr Frenchglen
(*)Deep Creek Lake 149 63 24 109
above Adel County
(*)Chewaucan River Lake 270 132 53 153
near Paisley County
Williamson River Klamath 1,100 76 42 86
near Chiloquin
Owyhee River Owyhee 278 13 22 31
near Rome
(*)NF Malheur River Malheur 115 49 51 78
near Beulah
Grande Ronde R Grande Ronde 5,120 105 159 100
at Troy Powder/Burnt
Umatilla River Umatilla 596 130 185 106
nr Gibbon Lower John Day
John Day River Upper John Day 2,120 53 84 66
at Service Crk
(*)Little Deschutes Upper 135 70 48 63
River nr LaPine Deschutes
Hood River Lower Deschutes 1,860 142 108 102
nr Hood River Mt.Hood
Willamette River Willamette 24,300 85 16 71
at Salem
Wilson River North 2,460 135 103 105
near Tillamook Coast
Umpqua River Rogue/Umpqua 6,700 57 -22 51
near Elkton
Rogue River Rogue/Umpqua 4,150 50 -34 58
near Agness
SF Coquille River South Coast 544 39 -51 52
at Powers
Chetco River South Coast 1,290 33 -64 65
near Brookings
All data should be considered provisional and subject to revision.
Percent of average computed using 30-year base period, water years 1991-2020.
(*) provided by Oregon Water Resources Department
4/2/2026