The monitoring network within this area

Hydrionis holds 821 values from 3 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.

Gauges

821

Values held

1904–2026

Record spans

Gauges within the Mojave huc8 subbasin

3 monitoring points, positioned as the publisher records them.

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.

Largest measured flow of each year at DEEP C NR HESPERIA CA

The highest instantaneous discharge the publisher recorded in each year — a flood peak as measured, not a daily average of one. 1906–2025.

Show relevant events (1 event)Shading marks when something was recorded, not what caused the line.

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 (1 event)

A shaded period marks when something was recorded, not what caused the shape of the line. Where the two coincide, they coincided.

Documented record — A documented event, compiled from cited sources after it happened. The dates are as good as the record, which for older events can mean the month rather than the day.

Event	Type	Period	Standing	Authority
Hurricane Katrina water and sanitation collapse	Flood	2005-08-29 – 2005-09-30	Documented record	Compiled record

Not shown on this chart

The 1976 drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
The 2022 drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Yorkshire drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Cantareira water crisis, São Paulo — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Cape Town Day Zero — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
European drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.

View the data behind this chart

Underlying data
Period	DEEP C NR HESPERIA CA (m³/s)
1906	306
1907	196
1909	178
1910	1,073
1911	177
1914	265
1915	203
1916	651
1918	311
1920	135
1921	62.3
1930	9.63
1931	45.3
1932	224
1933	4.76
1935	78.2
1936	61.4
1937	193
1938	1,320
1939	52.4
1940	73.9
1942	11.2
1943	538
1944	13.9
1945	180
1946	77.6
1948	23.8
1949	7.02
1950	20.0
1951	1.13
1953	4.08
1954	208
1955	8.86
1956	191
1957	326
1958	351
1959	196
1960	3.17
1961	44.7
1962	199
1963	17.8
1964	11.6
1965	12.5
1966	436
1967	18.5
1969	651
1970	15.8
1971	252
1973	193
1974	28.9
1975	14.2
1976	143
1977	19.7
1978	702
1979	161
1980	464
1981	3.68
1982	82.1
1983	470
1984	23.1
1986	145
1987	46.4
1988	19.5
1989	15.7
1990	2.46
1991	252
1992	297
1993	510
1994	109
1995	326
1996	156
1997	142
1998	462
1999	2.38
2000	54.4
2001	4.25
2003	170
2004	510
2006	425
2007	2.32
2008	173
2009	36.5
2010	217
2012	9.20
2013	2.97
2014	150
2016	54.4
2017	109
2018	27.9
2019	368
2020	59.5
2021	1.29
2023	170
2024	105
2025	71.4

About this series

Everything below is a property of the data rather than a rating of it. There is deliberately no single confidence score: how much a gap matters depends on what you are about to do with the series, and only you know that.

Source	United States Geological Survey — National Water Information System · US Government work — public domain
How the values came to exist	Measured
Period held	1906–2025
Completeness	79.2% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps	17 separate periods inside 1906–2025 hold no value. The longest runs from 1922 to 1929 — 8 years with no reading. They are drawn as breaks in the line and are never interpolated across.
Continuity	The record begins in 1906 and is not continuous from it: 120 years separate the first value from the last, and 79% 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

How much of the rain came back out

A discharge in cubic metres per second cannot be compared with anything: the larger number may only mean the larger catchment. Divided by the area draining to the gauge it becomes a depth of water over that land, which answers a question a reader already has — of the rain that fell here, how much came back out as river?

Water leaving the catchment above DEEP C NR HESPERIA CA, as a depth

The year's flow spread over the land draining to this gauge, in millimetres — the same unit rainfall is measured in. 1905–2025.

Show relevant events (1 event)Shading marks when something was recorded, not what caused the line.

Computed by Hydrionis from the published annual mean flow and the catchment area the station's own publisher states. It is not a water balance: the difference between rainfall and runoff is not evaporation alone but also change in groundwater storage, water abstracted and taken elsewhere, and water imported by transfer schemes — which is why a catchment can yield more runoff than the rain that fell on it without anything being measured wrongly. A different area figure rescales every value here by the ratio between them.

What the shaded periods are (1 event)

A shaded period marks when something was recorded, not what caused the shape of the line. Where the two coincide, they coincided.

Documented record — A documented event, compiled from cited sources after it happened. The dates are as good as the record, which for older events can mean the month rather than the day.

Event	Type	Period	Standing	Authority
Hurricane Katrina water and sanitation collapse	Flood	2005-08-29 – 2005-09-30	Documented record	Compiled record

Not shown on this chart

The 1976 drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
The 2022 drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Yorkshire drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Cantareira water crisis, São Paulo — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
Cape Town Day Zero — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.
European drought — This event’s area does not contain this chart’s subject. Sharing a country is not sharing an event, so it is not drawn.

View the data behind this chart

Underlying data
Period	DEEP C NR HESPERIA CA (mm)
1905	201
1906	343
1907	466
1908	133
1909	276
1910	247
1911	313
1912	90.0
1913	56.0
1914	355
1915	318
1916	664
1917	106
1918	149
1919	45.0
1920	189
1921	286
1930	81.0
1931	52.0
1932	229
1933	56.0
1934	52.0
1935	125
1936	75.0
1937	391
1938	515
1939	99.0
1940	109
1941	350
1942	54.0
1943	341
1944	179
1945	184
1946	156
1947	42.0
1948	36.0
1949	59.0
1950	27.0
1951	26.0
1952	196
1953	20.0
1954	137
1955	42.0
1956	50.0
1957	98.0
1958	336
1959	50.0
1960	33.0
1961	27.0
1962	166
1963	22.0
1964	35.0
1965	267
1966	198
1967	183
1968	48.0
1969	779
1970	56.0
1971	95.0
1972	25.0
1973	143
1974	66.0
1975	41.0
1976	64.0
1977	51.0
1978	822
1979	275
1980	690
1981	36.0
1982	183
1983	535
1984	41.0
1985	56.0
1986	109
1987	40.0
1988	39.0
1989	25.0
1990	22.0
1991	113
1992	183
1993	1,048
1994	73.0
1995	496
1996	106
1997	67.0
1998	443
1999	24.0
2000	51.0
2001	45.0
2002	13.0
2003	121
2004	183
2005	694
2006	273
2007	21.0
2008	131
2009	112
2010	520
2011	242
2012	48.0
2013	23.0
2014	40.0
2015	16.0
2016	35.0
2017	110
2018	26.0
2019	244
2020	88.0
2021	47.0
2022	38.0
2023	473
2024	205
2025	89.0

About this series

Source	United States Geological Survey — National Water Information System · US Government work — public domain
How the values came to exist	Derived Computed by Hydrionis
Period held	1905–2025
Completeness	93.4% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps	One period inside 1905–2025 holds no value: 1922 to 1929, 8 years with no reading. It is drawn as a break in the line and is never interpolated across.
Continuity	The record begins in 1905 and is not continuous from it: 121 years separate the first value from the last, and 93% of the years between them are held. The span is not the record.
Inputs last read	2026-10-01 · when the records this was computed from were last read from their publishers
Calculation date	2026-08-24 · when the calculation method was last versioned, not a reading of any publisher
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

Every gauge Hydrionis holds within this area

Gauges within the Mojave and what each holds
Gauge	Measures	Values	Record
DEEP C NR HESPERIA CA	burned area within 50 km, catchment area, annual maximum river flow, mean river flow, mean river flow, water year	370	1904–2026
MOJAVE R A LO NARROWS NR VICTORVILLE CA	burned area within 50 km, catchment area, annual maximum river flow, mean river flow, mean river flow, water year	240	1931–2026
MOJAVE R A AFTON CA	burned area within 50 km, catchment area, annual maximum river flow, mean river flow, mean river flow, water year	211	1930–2026

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 — 18090208. 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.

What each gauge’s link to this water rests on
Gauge	Evidence	Established
DEEP C NR HESPERIA CA	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
MOJAVE R A LO NARROWS NR VICTORVILLE CA	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
MOJAVE R A AFTON CA	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 4 of them, which makes it a full profile.

Information-gain signals held for this water body
Signal	Held	Counts
Gauges holding a real record	3	yes, 3 or more
Years spanned	123	yes, 20 or more
Values held	821	no
Distinct measurements	5	yes, 2 or more
Publishers measuring it	2	yes, 2 or more
Official identifiers	1	recorded, not counted

Use this data

Machine-readable JSON /api/v1/observations/by-subject/gauge-usgs-10260500.json
How to cite this, and who you must credit
How these figures were produced
Request this at a different scale, format or geography

No bulk download is offered here, which is a licence position rather than a product one: at least one contributing publisher does not permit redistribution. The values can be read on the page, cited, and pointed to at source.

Attribution and citation

Suggested citation for Hydrionis

Hydrionis (2026), Mojave gauge records, accessed 2026-10-05, hydrionis.com/waters/united-states-mojave/

Cite Hydrionis where you rely on values Hydrionis computed, on the method that produced them, or on the compilation itself. The underlying measurements remain the publishers’ and their attribution requirements apply to you directly.

Recommended, not required. Hydrionis does not claim rights over unmodified public data it relayed, and doing arithmetic on somebody else’s measurements does not make them Hydrionis’s. Cite the version and the access date: the Mojave gauge records changes as publishers release and as methods are revised, and a citation without both cannot be checked later. Full guidance is on cite and reuse.

None of the contributing licences requires attribution. Crediting the publishers is still good practice and they are listed above.

Where these figures come from

MeasuredHigh confidence2025-02-14

Source: USGS — National Water Information System, USGS site 10260500, 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.