Powder
2 monitoring stations within this area in United States, holding 1,777 values between 1904 and 2026. A United States federal hydrologic unit at the eight-digit subbasin level — a drainage area, not a river. Many subbasins take the name of the largest river within them, and the gauges below are anywhere inside the area, including on tributaries.
The monitoring network within this area
Hydrionis holds 1,777 values from 2 gauges within it. Discharge is a property of a gauge and its reach, not of this drainage area, so this page reports the network and its records rather than a single figure.
Flood peaks, as measured
This gauge's flood record, as measured. Unlike a daily mean it is the discharge at the moment the river was highest, which is the figure flood frequency analysis is built on.
Published by the gauge's own operator from its sub-daily record; Hydrionis stores the figure rather than recomputing it. A year the gauge did not cover produces no value rather than a low one, and the gaps are stated below the chart. A peak is a property of this gauge and its reach: a larger flood upstream or downstream of it is not in this series.
What the shaded periods are (0 events)
View the data behind this chart
| Period | POWDER RIVER NEAR BAKER, OREG. (m³/s) |
|---|---|
| 1904 | 47.9 |
| 1905 | 9.43 |
| 1906 | 24.9 |
| 1907 | 25.5 |
| 1908 | 18.1 |
| 1909 | 18.4 |
| 1910 | 51.5 |
| 1911 | 13.4 |
| 1912 | 28.3 |
| 1913 | 28.9 |
| 1914 | 26.6 |
| 1927 | 28.6 |
| 1928 | 28.6 |
| 1929 | 15.6 |
| 1930 | 7.08 |
| 1931 | 8.52 |
| 1932 | 27.5 |
| 1933 | 20.2 |
| 1934 | 5.95 |
| 1935 | 12.5 |
| 1936 | 24.6 |
| 1937 | 11.8 |
| 1938 | 23.9 |
| 1939 | 21.1 |
| 1940 | 18.8 |
| 1941 | 19.7 |
| 1942 | 21.9 |
| 1943 | 29.4 |
| 1944 | 6.74 |
| 1945 | 18.9 |
| 1946 | 23.9 |
| 1947 | 18.6 |
| 1948 | 34.0 |
| 1949 | 24.8 |
| 1950 | 14.5 |
| 1951 | 23.3 |
| 1952 | 30.9 |
| 1953 | 22.8 |
| 1954 | 12.2 |
| 1955 | 11.9 |
| 1956 | 37.9 |
| 1957 | 19.9 |
| 1958 | 39.6 |
| 1959 | 17.2 |
| 1960 | 22.7 |
| 1961 | 16.5 |
| 1962 | 16.1 |
| 1963 | 17.7 |
| 1964 | 20.9 |
| 1965 | 32.6 |
| 1966 | 12.5 |
| 1967 | 25.3 |
| 1968 | 16.1 |
About this series
| Source | United States Geological Survey — National Water Information System · US Government work — public domain |
|---|---|
| How the values came to exist | Measured |
| Period held | 1904–1968 |
| Completeness | 81.5% of the periods in that span are held. Gaps are drawn as breaks and never interpolated. |
| Known gaps |
|
| Continuity | The record begins in 1904 and is not continuous from it: 65 years separate the first value from the last, and 82% of the years between them are held. The span is not the record. |
| Last read from the publisher | 2026-10-01 |
| Redistribution | Permitted by the upstream licences |
| Commercial reuse | Permitted by the upstream licences. No Hydrionis access tier can widen this. |
| Methodology | How this was produced |
The snow standing above this water
3 automated snow stations sit inside this drainage area, weighing the snowpack rather than measuring how deep it is.
A water year runs October to September and is named for the year it ends, so the snow of one winter stays in one point. The value is the fullest month, not the fullest day: a pack that peaked sharply mid-month reads lower here than a single measurement taken at the right moment would.
View the data behind this chart
| Period | Bourne (mm) |
|---|---|
| 1979 | 605 |
| 1980 | 455 |
| 1981 | 331 |
| 1982 | 586 |
| 1983 | 734 |
| 1984 | 650 |
| 1985 | 428 |
| 1986 | 512 |
| 1987 | 311 |
| 1988 | 314 |
| 1989 | 543 |
| 1990 | 321 |
| 1991 | 295 |
| 1992 | 230 |
| 1993 | 516 |
| 1994 | 307 |
| 1995 | 403 |
| 1996 | 255 |
| 1997 | 487 |
| 1998 | 394 |
| 1999 | 616 |
| 2000 | 462 |
| 2001 | 217 |
| 2002 | 365 |
| 2003 | 228 |
| 2004 | 432 |
| 2005 | 142 |
| 2006 | 449 |
| 2007 | 214 |
| 2008 | 492 |
| 2009 | 328 |
| 2010 | 305 |
| 2011 | 459 |
| 2012 | 323 |
| 2013 | 291 |
| 2014 | 309 |
| 2015 | 188 |
| 2016 | 390 |
| 2017 | 450 |
| 2018 | 229 |
| 2019 | 493 |
| 2020 | 355 |
| 2021 | 399 |
| 2022 | 245 |
| 2023 | 505 |
| 2024 | 369 |
| 2025 | 472 |
| 2026 | 84.0 |
Every gauge Hydrionis holds within this area
| Gauge | Measures | Values | Record |
|---|---|---|---|
| POWDER RIVER NEAR BAKER, OREG. | catchment area, annual maximum river flow | 54 | 1904–2026 |
| POWDER R BE THIEF VALLEY RES NR NORTH POWDER OR | catchment area, annual maximum river flow | 20 | 1979–2026 |
How these gauges were attached to this water
Assigned by the publisher to a numbered basin Every gauge here is assigned to this drainage area by its own publisher, which issues the area an official code — 17050203. A drainage area is not a river: it contains the tributaries as well as the main channel, and a gauge in it may be on any of them.
| Gauge | Evidence | Established |
|---|---|---|
| POWDER RIVER NEAR BAKER, OREG. | Stated by the publisher — USGS site service, huc_cd field — https://waterservices.usgs.gov/nwis/site/ ; named from the USGS Watershed Boundary Dataset 8-digit HU (Subbasin) layer — https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer/4 | 2026-10-02 |
| POWDER R BE THIEF VALLEY RES NR NORTH POWDER OR | Stated by the publisher — USGS site service, huc_cd field — https://waterservices.usgs.gov/nwis/site/ ; named from the USGS Watershed Boundary Dataset 8-digit HU (Subbasin) layer — https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer/4 | 2026-10-02 |
What this record holds
Hydrionis decides which waters get a page, and which of those are offered to search, from what is actually held rather than from how the page reads. Five signals are counted; this record has 3 of them, which makes it a full profile.
| Signal | Held | Counts |
|---|---|---|
| Gauges holding a real record | 1 | no |
| Years spanned | 123 | yes, 20 or more |
| Values held | 1,777 | yes, 1000 or more |
| Distinct measurements | 3 | yes, 2 or more |
| Publishers measuring it | 1 | no |
| Official identifiers | 1 | recorded, not counted |
Use this data
Use this data
- Machine-readable JSON
/api/v1/observations/by-subject/gauge-usgs-13275500.json - How to cite this, and who you must credit
- How these figures were produced
- Request this at a different scale, format or geography
Attribution and citation
Suggested citation for Hydrionis
Hydrionis (2026), Powder gauge records, accessed 2026-10-05, hydrionis.com/waters/united-states-powder/
Cite Hydrionis where you rely on the compilation, the normalisation, the eligibility judgements or a chart. Where you use an unmodified published value, the publisher’s attribution is the one that is required; crediting Hydrionis as well is welcome and is not something Hydrionis can require of you.
Where these figures come from
Source: USGS — National Water Information System, USGS site 13275500, annual peak streamflow. Licence: Open.
Method: The instantaneous maximum discharge of each water year as published by USGS, dated to the day it occurred. One value per October-to-September water year; where the publisher lists both a systematic and a historic peak for a year, the larger is the annual maximum. Values the publisher marks as maximum daily averages are not held here, because they are not instantaneous peaks. Values marked as bounded rather than measured are held as censored observations carrying the bound. Cubic feet per second are converted to cubic metres per second and the publisher unit is recorded alongside.
Rating curves are extrapolated at extreme discharges, so the largest values in a peak series carry the largest measurement uncertainty. Data from the U.S. Geological Survey National Water Information System, a work of the United States government and therefore in the public domain.
Retrieved 1 October 2026.