HydrionisGlobal Water Intelligence
HUC8 subbasin

Upper Yadkin

2 monitoring stations within this area in United States, holding 369 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.

United StatesHUC8 subbasin

The monitoring network within this area

Hydrionis holds 369 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
369
Values held
1904–2026
Record spans
Gauges within the Upper Yadkin huc8 subbasin
2 monitoring points, positioned as the publisher records them.
Gauges within the Upper Yadkin huc8 subbasinYADKIN RIVER AT WILKESBORO, NC, YADKIN RIVER AT YADKIN COLLEGE, NCYADKIN RIVER AT WILKESBORO, NCYADKIN RIVER AT YADKIN COLLEGE, NC

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 YADKIN RIVER AT WILKESBORO, NC
The highest instantaneous discharge the publisher recorded in each year — a flood peak as measured, not a daily average of one. 1904–2025.
Shading marks when something was recorded, not what caused the line.
Largest measured flow of each year at YADKIN RIVER AT WILKESBORO, NCLargest measured flow of each year at YADKIN RIVER AT WILKESBORO, NC: YADKIN RIVER AT WILKESBORO, NC in m³/s, from 1904 to 2025.Hurricane Katrina water and sanitation collapse02,0004,000m³/s19041931194619601974198920032016

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.

EventTypePeriodStandingAuthority
Hurricane Katrina water and sanitation collapseFlood2005-08-29 – 2005-09-30Documented 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
PeriodYADKIN RIVER AT WILKESBORO, NC (m³/s)
1904262
1905453
1906759
1908416
1909640
1920303
1922320
1923385
1924388
1926340
1928623
1929292
1931171
1932212
1934300
1936306
1937547
1939328
19404,531
1941289
1942374
1943270
1944334
1945657
1946265
1947402
1949362
1950163
1952362
1953320
1954334
1955289
1956217
1957439
1958188
1959430
1960328
1961244
1963173
1964158
1966263
1967147
1968164
1969221
1970360
1971131
1972257
1973243
1974276
1975217
1976266
1977334
1979265
1980199
1981147
1982159
1983362
1984138
1985135
1987226
1989177
1991242
1992174
1993252
1994351
1995204
1996250
1998294
1999114
200098.8
200190.3
200260.6
2003187
2004171
2005142
2006136
2007144
2008137
2009203
2010267
2011246
2012191
2013185
2015150
2016246
2017216
2018194
2020279
202287.5
2023132
2024411
2025134

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 existMeasured
Period held1904–2025
Completeness75.4% of the periods in that span are held. Gaps are drawn as breaks and never interpolated.
Known gaps
  • 21 separate periods inside 1904–2025 hold no value. The longest runs from 1910 to 1919 — 10 years with no reading. They are drawn as breaks in the line and are never interpolated across.
ContinuityThe record begins in 1904 and is not continuous from it: 122 years separate the first value from the last, and 75% of the years between them are held. The span is not the record.
Last read from the publisher2026-08-31
RedistributionPermitted by the upstream licences
Commercial reusePermitted by the upstream licences. No Hydrionis access tier can widen this.
MethodologyHow 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 YADKIN RIVER AT WILKESBORO, NC, as a depth
The year's flow spread over the land draining to this gauge, in millimetres — the same unit rainfall is measured in. 1963–2025.
Shading marks when something was recorded, not what caused the line.
Water leaving the catchment above YADKIN RIVER AT WILKESBORO, NC, as a depthWater leaving the catchment above YADKIN RIVER AT WILKESBORO, NC, as a depth: YADKIN RIVER AT WILKESBORO, NC in mm, from 1963 to 2025.Hurricane Katrina water and sanitation collapse2505007501,000mm19631971197919871995200320112019YADKIN RIVER AT WILKESBORO, NC 1963: 408 mmYADKIN RIVER AT WILKESBORO, NC 1964: 496 mmYADKIN RIVER AT WILKESBORO, NC 1965: 525 mmYADKIN RIVER AT WILKESBORO, NC 1966: 483 mmYADKIN RIVER AT WILKESBORO, NC 1967: 410 mmYADKIN RIVER AT WILKESBORO, NC 1968: 446 mmYADKIN RIVER AT WILKESBORO, NC 1969: 571 mmYADKIN RIVER AT WILKESBORO, NC 1970: 572 mmYADKIN RIVER AT WILKESBORO, NC 1971: 613 mmYADKIN RIVER AT WILKESBORO, NC 1972: 629 mmYADKIN RIVER AT WILKESBORO, NC 1973: 891 mmYADKIN RIVER AT WILKESBORO, NC 1974: 759 mmYADKIN RIVER AT WILKESBORO, NC 1975: 852 mmYADKIN RIVER AT WILKESBORO, NC 1976: 639 mmYADKIN RIVER AT WILKESBORO, NC 1977: 641 mmYADKIN RIVER AT WILKESBORO, NC 1978: 629 mmYADKIN RIVER AT WILKESBORO, NC 1979: 902 mmYADKIN RIVER AT WILKESBORO, NC 1980: 664 mmYADKIN RIVER AT WILKESBORO, NC 1981: 312 mmYADKIN RIVER AT WILKESBORO, NC 1982: 469 mmYADKIN RIVER AT WILKESBORO, NC 1983: 787 mmYADKIN RIVER AT WILKESBORO, NC 1984: 620 mmYADKIN RIVER AT WILKESBORO, NC 1985: 383 mmYADKIN RIVER AT WILKESBORO, NC 1986: 337 mmYADKIN RIVER AT WILKESBORO, NC 1987: 580 mmYADKIN RIVER AT WILKESBORO, NC 1988: 240 mmYADKIN RIVER AT WILKESBORO, NC 1989: 583 mmYADKIN RIVER AT WILKESBORO, NC 1990: 783 mmYADKIN RIVER AT WILKESBORO, NC 1991: 616 mmYADKIN RIVER AT WILKESBORO, NC 1992: 652 mmYADKIN RIVER AT WILKESBORO, NC 1993: 675 mmYADKIN RIVER AT WILKESBORO, NC 1994: 732 mmYADKIN RIVER AT WILKESBORO, NC 1995: 664 mmYADKIN RIVER AT WILKESBORO, NC 1996: 682 mmYADKIN RIVER AT WILKESBORO, NC 1997: 544 mmYADKIN RIVER AT WILKESBORO, NC 1998: 658 mmYADKIN RIVER AT WILKESBORO, NC 1999: 331 mmYADKIN RIVER AT WILKESBORO, NC 2000: 275 mmYADKIN RIVER AT WILKESBORO, NC 2001: 242 mmYADKIN RIVER AT WILKESBORO, NC 2002: 315 mmYADKIN RIVER AT WILKESBORO, NC 2003: 876 mmYADKIN RIVER AT WILKESBORO, NC 2004: 621 mmYADKIN RIVER AT WILKESBORO, NC 2005: 562 mmYADKIN RIVER AT WILKESBORO, NC 2006: 385 mmYADKIN RIVER AT WILKESBORO, NC 2007: 327 mmYADKIN RIVER AT WILKESBORO, NC 2008: 270 mmYADKIN RIVER AT WILKESBORO, NC 2009: 559 mmYADKIN RIVER AT WILKESBORO, NC 2010: 540 mmYADKIN RIVER AT WILKESBORO, NC 2011: 446 mmYADKIN RIVER AT WILKESBORO, NC 2012: 421 mmYADKIN RIVER AT WILKESBORO, NC 2013: 969 mmYADKIN RIVER AT WILKESBORO, NC 2014: 546 mmYADKIN RIVER AT WILKESBORO, NC 2015: 578 mmYADKIN RIVER AT WILKESBORO, NC 2016: 551 mmYADKIN RIVER AT WILKESBORO, NC 2017: 544 mmYADKIN RIVER AT WILKESBORO, NC 2018: 931 mmYADKIN RIVER AT WILKESBORO, NC 2019: 924 mmYADKIN RIVER AT WILKESBORO, NC 2020: 1,112 mmYADKIN RIVER AT WILKESBORO, NC 2021: 575 mmYADKIN RIVER AT WILKESBORO, NC 2022: 484 mmYADKIN RIVER AT WILKESBORO, NC 2023: 555 mmYADKIN RIVER AT WILKESBORO, NC 2024: 724 mmYADKIN RIVER AT WILKESBORO, NC 2025: 522 mm

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.

EventTypePeriodStandingAuthority
Hurricane Katrina water and sanitation collapseFlood2005-08-29 – 2005-09-30Documented 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
PeriodYADKIN RIVER AT WILKESBORO, NC (mm)
1963408
1964496
1965525
1966483
1967410
1968446
1969571
1970572
1971613
1972629
1973891
1974759
1975852
1976639
1977641
1978629
1979902
1980664
1981312
1982469
1983787
1984620
1985383
1986337
1987580
1988240
1989583
1990783
1991616
1992652
1993675
1994732
1995664
1996682
1997544
1998658
1999331
2000275
2001242
2002315
2003876
2004621
2005562
2006385
2007327
2008270
2009559
2010540
2011446
2012421
2013969
2014546
2015578
2016551
2017544
2018931
2019924
20201,112
2021575
2022484
2023555
2024724
2025522

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 existDerived Computed by Hydrionis
Period held1963–2025
Completeness100.0% of the periods in that span are held.
ContinuityContinuous: every year from 1963 to 2025 is held.
Last read from the publisher2026-08-24
RedistributionPermitted by the upstream licences
Commercial reusePermitted by the upstream licences. No Hydrionis access tier can widen this.
MethodologyHow this was produced

Every gauge Hydrionis holds within this area

GaugeMeasuresValuesRecord
YADKIN RIVER AT WILKESBORO, NCburned area within 50 km, catchment area, annual maximum river flow, mean river flow2101904–2026
YADKIN RIVER AT YADKIN COLLEGE, NCcatchment area, annual maximum river flow, mean river flow1591929–2026

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 — 03040101. 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.

GaugeEvidenceEstablished
YADKIN RIVER AT WILKESBORO, NCStated 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/42026-08-26
YADKIN RIVER AT YADKIN COLLEGE, NCStated 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/42026-08-26

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.

SignalHeldCounts
Gauges holding a real record2no
Years spanned123yes, 20 or more
Values held369no
Distinct measurements4yes, 2 or more
Publishers measuring it2yes, 2 or more
Official identifiers1recorded, not counted

Use this data

Use this data

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), Upper Yadkin gauge records, accessed 2026-09-02, hydrionis.com/waters/united-states-upper-yadkin/

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 Upper Yadkin 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 confidence2025-09-26

Source: USGS — National Water Information System, USGS site 02112000, 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 31 August 2026.

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