The monitoring network within this area

Hydrionis holds 90,007 values from 4 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.

4

Gauges

90,007

Values held

1909–2026

Record spans

1,335 km²

Area

Gauges within the Örekilsälven drainage basin

4 monitoring points, positioned as the publisher records them.

How low, how high and how variable this gauge runs

A hydrograph says what happened; these say how often. Read off MUNKEDAL 2's whole daily record between 1909 and 2026, they describe the shape of the record rather than any day in it — and they belong to this gauge and its reach, not to this drainage area.

2.600 m³/s

Q95 low flow

13.200 m³/s

Q50 median flow

53.300 m³/s

Q10 high flow

Largest day of each water year at MUNKEDAL 2

The highest daily mean discharge in each October-to-September water year, 1909–2025.

These are the largest daily means, not flood peaks. A peak lasting hours is averaged across a whole day here, so the true instantaneous maximum on the same day was higher — sometimes far higher on a fast-responding catchment. Flood frequency work needs a publisher's own instantaneous series; Hydrionis holds one for 2,236 American gauges and not for this one, so the two are never drawn together. A water year the gauge did not substantially cover produces no value at all rather than a low one.

View the data behind this chart

Underlying data
Period	MUNKEDAL 2 (m³/s)
1909	161
1910	68.0
1911	176
1912	140
1913	86.0
1914	115
1915	129
1916	119
1917	99.0
1918	116
1919	136
1920	75.0
1921	86.0
1922	93.0
1923	133
1924	145
1925	116
1926	234
1927	164
1928	144
1929	134
1930	93.0
1931	103
1932	112
1933	87.0
1934	212
1935	160
1936	147
1937	119
1938	150
1939	80.0
1940	72.0
1941	48.0
1942	197
1943	88.0
1944	177
1945	82.0
1946	109
1947	64.0
1948	134
1949	198
1950	253
1951	123
1952	113
1953	96.0
1954	124
1955	91.0
1956	207
1957	91.0
1958	116
1959	111
1960	131
1961	149
1962	98.0
1963	122
1964	142
1965	151
1966	189
1967	246
1968	222
1969	195
1970	122
1971	104
1972	139
1973	134
1974	137
1975	85.0
1976	134
1977	127
1978	93.0
1979	74.0
1980	163
1981	137
1982	210
1983	153
1984	129
1985	132
1986	165
1987	140
1988	119
1989	177
1990	131
1991	102
1992	133
1993	190
1994	124
1995	58.3
1996	195
1997	128
1998	146
1999	192
2000	236
2001	166
2002	84.1
2003	161
2004	166
2005	134
2006	192
2007	152
2008	150
2009	155
2010	130
2011	125
2012	204
2013	203
2014	208
2015	174
2016	132
2017	114
2018	167
2019	145
2020	145
2021	161
2022	154
2023	139
2024	127
2025	120

The longest record here

Mean river flow at MUNKEDAL 2

Annual means of the daily record, 1909–2025. One gauge, not this drainage area.

Annual means computed by Hydrionis from the published daily record, drawn only for years with at least 300 days held. They summarise this gauge's own record and say nothing about any other watercourse in this area.

View the data behind this chart

Underlying data
Period	MUNKEDAL 2 (m³/s)
1909	26.8
1910	22.1
1911	21.6
1912	24.4
1913	15.6
1914	16.6
1915	16.0
1916	26.2
1917	21.2
1918	16.6
1919	15.5
1920	23.2
1921	13.4
1922	14.4
1923	26.1
1924	27.1
1925	14.6
1926	21.4
1927	33.7
1928	21.4
1929	21.8
1930	23.4
1931	16.9
1932	20.7
1933	10.5
1934	23.8
1935	24.7
1936	20.4
1937	16.2
1938	26.5
1939	20.6
1940	15.6
1941	16.0
1942	14.9
1943	18.6
1944	25.1
1945	16.7
1946	21.7
1947	8.93
1948	18.8
1949	27.1
1950	26.5
1951	28.0
1952	16.8
1953	21.4
1954	29.5
1955	14.5
1956	18.1
1957	25.5
1958	18.2
1959	20.0
1960	24.7
1961	22.0
1962	32.9
1963	25.0
1964	18.8
1965	23.5
1966	27.2
1967	33.9
1968	25.1
1969	20.3
1970	19.9
1971	20.0
1972	21.5
1973	17.4
1974	27.8
1975	17.8
1976	13.2
1977	26.0
1978	15.8
1979	19.9
1980	24.3
1981	24.5
1982	27.4
1983	22.8
1984	27.9
1985	23.8
1986	24.4
1987	27.1
1988	31.7
1989	20.1
1990	23.5
1991	18.5
1992	18.7
1993	17.8
1994	27.4
1995	20.1
1996	14.8
1997	16.2
1998	26.1
1999	35.3
2000	38.5
2001	19.5
2002	22.5
2003	16.9
2004	27.3
2005	19.8
2006	30.7
2007	25.1
2008	33.5
2009	22.2
2010	17.6
2011	26.9
2012	28.3
2013	20.9
2014	33.3
2015	28.6
2016	17.3
2017	19.9
2018	18.4
2019	28.9
2020	31.7
2021	19.7
2022	17.4
2023	26.8
2024	31.9
2025	22.4

Every gauge Hydrionis holds within this area

Gauges within the Örekilsälven and what each holds
Gauge	Measures	Values	Record
MUNKEDAL 2	mean river flow	43,007	1909–2026
KROKFORS KVARN	mean river flow	17,521	1978–2026
GUNNARSBO	mean river flow	17,167	1972–2019
SQVALA	mean river flow	12,312	1962–1995

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 — 110000. 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
MUNKEDAL 2	Stated by the publisher on the record this gauge’s observations came from.	With the observations
KROKFORS KVARN	Stated by the publisher on the record this gauge’s observations came from.	With the observations
GUNNARSBO	Stated by the publisher on the record this gauge’s observations came from.	With the observations
SQVALA	Stated by the publisher on the record this gauge’s observations came from.	With the observations

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	4	yes, 3 or more
Years spanned	118	yes, 20 or more
Values held	90,007	yes, 1000 or more
Distinct measurements	1	no
Publishers measuring it	1	no
Official identifiers	2	recorded, not counted

Use this data

Machine-readable JSON /api/v1/observations/by-subject/se-smhi-257.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

Attribution you are required to give

These are conditions of the licences the underlying data is published under. They are obligations to the publishers, not to Hydrionis, and they apply to you directly whether or not you mention Hydrionis at all.

Data from Sveriges meteorologiska och hydrologiska institut, used under CC BY 4.0.

Sveriges meteorologiska och hydrologiska institut — CC BY 4.0 (licence text)

Suggested citation for Hydrionis

Hydrionis (2026), Örekilsälven gauge records, accessed 2026-10-05, hydrionis.com/waters/sweden-orekilsalven/

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.

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 Örekilsälven 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.

Where these figures come from

MeasuredMedium confidence2026-09-30

Source: SMHI — Swedish hydrological observations, 257. Licence: Open — attribution required (attribution required).

Method: Daily discharge exactly as SMHI publishes it, from its corrected archive. SMHI computes the daily value from its own sub-daily measurement and rating curves; Hydrionis does not recompute it, because a mean derived from whatever sub-daily data happens to be exposed would be a different statistic under the same name.

Checked and approved by SMHI except 2026-01-15 to 2026-09-30 (not yet checked). Station in the ÖREKILSÄLVEN main drainage basin, 1,335 km². Discharge is a property of this gauge and this reach, not of the river as a whole.

Retrieved 1 October 2026.