The monitoring network within this area

Hydrionis holds 322 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.

Gauges

322

Values held

1915–2026

Record spans

Gauges within the Lower Laramie 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 LARAMIE RIVER NEAR FORT LARAMIE, WY

The highest instantaneous discharge the publisher recorded in each year — a flood peak as measured, not a daily average of one. 1915–2025.

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	LARAMIE RIVER NEAR FORT LARAMIE, WY (m³/s)
1915	45.3
1917	121
1918	46.4
1919	23.2
1920	43.9
1921	54.9
1922	20.6
1923	36.8
1924	58.6
1925	11.6
1926	31.7
1927	33.4
1928	45.9
1929	70.8
1930	21.5
1933	17.7
1935	53.8
1936	47.6
1937	28.1
1938	14.4
1939	5.32
1940	45.6
1941	13.5
1942	38.2
1943	61.4
1944	5.72
1945	40.2
1946	6.23
1947	60.6
1948	21.1
1949	62.0
1950	14.7
1951	28.1
1952	47.6
1953	13.3
1954	2.78
1955	83.3
1956	6.80
1957	41.3
1958	14.6
1959	7.42
1960	9.57
1961	10.5
1962	26.2
1963	14.0
1964	17.6
1965	30.0
1967	35.4
1968	41.1
1969	49.3
1970	89.2
1971	159
1972	8.72
1973	177
1974	11.7
1975	9.68
1976	17.3
1977	19.4
1978	25.6
1979	7.31
1980	48.7
1981	3.45
1982	3.88
1983	118
1984	129
1985	22.6
1986	98.8
1987	8.13
1988	6.34
1989	2.21
1990	6.68
1991	7.82
1992	9.49
1993	133
1994	7.56
1995	88.1
1996	8.50
1997	13.7
1998	4.76
1999	28.6
2000	28.0
2001	6.88
2002	2.97
2003	3.77
2004	4.05
2005	4.87
2006	2.38
2007	2.07
2008	2.66
2009	24.3
2010	134
2011	64.8
2012	4.33
2013	8.89
2014	19.6
2015	135
2016	137
2017	15.5
2018	9.32
2019	18.3
2020	16.5
2021	6.60
2022	3.00
2023	7.65
2024	9.60
2025	6.09

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	1915–2025
Completeness	95.5% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps	4 separate periods inside 1915–2025 hold no value. The longest runs from 1931 to 1932 — 2 years with no reading. They are drawn as breaks in the line and are never interpolated across.
Continuity	The record begins in 1915 and is not continuous from it: 111 years separate the first value from the last, and 95% 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 LARAMIE RIVER NEAR FORT LARAMIE, WY, as a depth

The year's flow spread over the land draining to this gauge, in millimetres — the same unit rainfall is measured in. 1957–2025.

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	LARAMIE RIVER NEAR FORT LARAMIE, WY (mm)
1957	10.0
1958	9.00
1959	7.00
1960	4.00
1961	5.00
1962	9.00
1963	5.00
1964	6.00
1965	8.00
1966	5.00
1967	9.00
1968	12.0
1969	6.00
1970	17.0
1971	42.0
1972	10.0
1973	38.0
1974	11.0
1975	6.00
1976	7.00
1977	5.00
1978	8.00
1979	6.00
1980	14.0
1981	2.00
1982	3.00
1983	57.0
1984	52.0
1985	8.00
1986	21.0
1987	5.00
1988	6.00
1989	3.00
1990	4.00
1991	5.00
1992	4.00
1993	6.00
1994	4.00
1995	14.0
1996	7.00
1997	6.00
1998	4.00
1999	10.0
2000	8.00
2001	5.00
2002	4.00
2003	3.00
2004	2.00
2005	2.00
2006	2.00
2007	2.00
2008	2.00
2009	3.00
2010	17.0
2011	33.0
2012	4.00
2013	3.00
2014	8.00
2015	35.0
2016	40.0
2017	11.0
2018	5.00
2020	9.00
2021	5.00
2022	3.00
2023	6.00
2024	6.00
2025	4.00

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	1957–2025
Completeness	98.6% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps	One period inside 1957–2025 holds no value: 2019. It is drawn as a break in the line and is never interpolated across.
Continuity	The record begins in 1957 and is not continuous from it: 69 years separate the first value from the last, and 99% 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 Lower Laramie and what each holds
Gauge	Measures	Values	Record
LARAMIE RIVER NEAR FORT LARAMIE, WY	burned area within 50 km, catchment area, annual maximum river flow, mean river flow, mean river flow, water year	282	1915–2026
NORTH LARAMIE RIVER NEAR WHEATLAND, WY	catchment area, annual maximum river flow	40	1915–2026

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 — 10180011. 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
LARAMIE RIVER NEAR FORT LARAMIE, WY	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
NORTH LARAMIE RIVER NEAR WHEATLAND, WY	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	1	no
Years spanned	112	yes, 20 or more
Values held	322	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-06670500.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), Lower Laramie gauge records, accessed 2026-10-05, hydrionis.com/waters/united-states-lower-laramie/

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 Lower Laramie 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 confidence2025-09-02

Source: USGS — National Water Information System, USGS site 06670500, 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.