The monitoring network within this area

Hydrionis holds 836 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.

2

Gauges

836

Values held

1909–2026

Record spans

Gauges within the Clear huc8 subbasin

2 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 CLEAR CREEK NEAR GOLDEN, CO.

The highest instantaneous discharge the publisher recorded in each year — a flood peak as measured, not a daily average of one. 1911–1974.

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)

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	CLEAR CREEK NEAR GOLDEN, CO. (m³/s)
1911	51.5
1912	90.6
1913	31.7
1914	82.1
1915	43.0
1916	24.7
1917	47.3
1918	59.2
1919	30.9
1920	39.4
1921	125
1922	33.1
1923	59.7
1924	69.4
1925	20.4
1926	59.5
1927	30.6
1928	44.2
1929	36.2
1930	36.2
1931	37.1
1932	24.4
1933	167
1934	61.2
1935	139
1936	52.1
1937	49.6
1938	116
1939	26.2
1940	31.4
1941	146
1942	34.5
1943	29.4
1944	35.7
1945	34.0
1946	28.6
1947	53.8
1948	53.8
1949	90.3
1950	44.2
1951	57.2
1952	88.9
1953	53.8
1954	14.9
1955	36.2
1956	149
1957	80.4
1958	57.8
1959	39.9
1960	44.7
1961	34.8
1962	31.4
1963	19.0
1964	22.3
1965	99.4
1966	11.8
1967	26.9
1968	35.1
1969	52.7
1970	50.7
1971	49.0
1972	54.1
1973	62.6
1974	38.5

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	1911–1974
Completeness	100.0% of the periods in that span are held.
Continuity	Continuous: every year from 1911 to 1974 is held.
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 CLEAR CREEK NEAR GOLDEN, CO., as a depth

The year's flow spread over the land draining to this gauge, in millimetres — the same unit rainfall is measured in. 1909–1973.

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 (0 events)

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	CLEAR CREEK NEAR GOLDEN, CO. (mm)
1909	311
1912	274
1913	201
1914	354
1915	216
1916	174
1917	209
1918	242
1919	171
1920	223
1921	330
1922	145
1923	245
1924	235
1925	134
1926	282
1927	193
1928	208
1929	177
1930	181
1931	128
1932	143
1933	230
1934	156
1935	206
1936	262
1937	172
1938	296
1939	149
1940	140
1941	211
1942	203
1943	188
1944	190
1945	188
1946	149
1947	273
1948	188
1949	263
1950	142
1951	206
1952	231
1953	166
1954	81.0
1955	133
1956	165
1957	337
1958	177
1959	168
1960	199
1961	201
1962	178
1963	97.0
1964	122
1965	265
1966	103
1967	134
1968	154
1969	251
1970	252
1971	224
1972	140
1973	233

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	Derived Computed by Hydrionis
Period held	1909–1973
Completeness	96.9% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps	One period inside 1909–1973 holds no value: 1910 to 1911, 2 years with no reading. It is drawn as a break in the line and is never interpolated across.
Continuity	The record begins in 1909 and is not continuous from it: 65 years separate the first value from the last, and 97% 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

The snow standing above this water

1 automated snow station sits inside this drainage area, weighing the snowpack rather than measuring how deep it is.

938

Fullest snowpack recorded at Loveland Basin, in 2011 (mm of water)

252

Thinnest, in 2002 (mm of water)

April

Month the pack is usually at its fullest

July

Month the pack has gone by, in half of years

Peak snowpack at Loveland Basin

Water years 1993–2026. Each point is the fullest month of that snow season.

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

Underlying data
Period	Loveland Basin (mm)
1993	630
1994	489
1995	706
1996	748
1997	659
1998	483
1999	555
2000	537
2001	481
2002	252
2003	559
2004	397
2005	424
2006	603
2007	578
2008	597
2009	618
2010	408
2011	938
2012	338
2013	511
2014	688
2015	537
2016	542
2017	573
2018	469
2019	624
2020	512
2021	417
2022	422
2023	446
2024	517
2025	515
2026	296

Why the snow is not read against the river here

These two series do not overlap in time: Peak snow water equivalent runs 1992–2026 and Mean river flow, water year runs 1911–1972.

Every gauge Hydrionis holds within this area

Gauges within the Clear and what each holds
Gauge	Measures	Values	Record
CLEAR CREEK NEAR GOLDEN, CO.	burned area within 50 km, catchment area, annual maximum river flow, mean river flow, mean river flow, water year	226	1909–2026
CLEAR CREEK AT MOUTH NEAR DERBY, CO	burned area within 50 km, catchment area, annual maximum river flow, mean river flow, mean river flow, water year	202	1914–2026

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 — 10190004. 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
CLEAR CREEK NEAR GOLDEN, CO.	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
CLEAR CREEK AT MOUTH NEAR DERBY, CO	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.

Information-gain signals held for this water body
Signal	Held	Counts
Gauges holding a real record	2	no
Years spanned	118	yes, 20 or more
Values held	836	no
Distinct measurements	6	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-06719500.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), Clear gauge records, accessed 2026-10-05, hydrionis.com/waters/united-states-clear-10190004/

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 Clear 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 confidence1974-06-19

Source: USGS — National Water Information System, USGS site 06719500, 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.