The monitoring network within this area

Hydrionis holds 100,575 values from 5 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.

5
Gauges
100,575
Values held
1911–2026
Record spans
Gauges within the Kiiminginjoki drainage basin
5 monitoring points, positioned as the publisher records them.
Gauges within the Kiiminginjoki drainage basinPorkkalan silta, Iso Puutiojärvi - luusua, Haukipudas, Nuorittajoki, HaukipudasPorkkalan siltaIso Puutiojärvi - luusuaHaukipudasNuorittajokiHaukipudas

How low, how high and how variable this gauge runs

A hydrograph says what happened; these say how often. Read off Porkkalan silta's whole daily record between 1962 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.

3.100 m³/s
Q95 low flow
12.600 m³/s
Q50 median flow
50.000 m³/s
Q10 high flow
Largest day of each water year at Porkkalan silta
The highest daily mean discharge in each October-to-September water year, 1962–2025.
Largest day of each water year at Porkkalan siltaLargest day of each water year at Porkkalan silta: Porkkalan silta in m³/s, from 1962 to 2025.50100150200250m³/s19621970197819861994200220102018Porkkalan silta 1962: 103 m³/sPorkkalan silta 1963: 170 m³/sPorkkalan silta 1964: 161 m³/sPorkkalan silta 1965: 114 m³/sPorkkalan silta 1966: 117 m³/sPorkkalan silta 1967: 176 m³/sPorkkalan silta 1968: 205 m³/sPorkkalan silta 1969: 183 m³/sPorkkalan silta 1970: 219 m³/sPorkkalan silta 1971: 111 m³/sPorkkalan silta 1972: 194 m³/sPorkkalan silta 1973: 143 m³/sPorkkalan silta 1974: 200 m³/sPorkkalan silta 1975: 121 m³/sPorkkalan silta 1976: 219 m³/sPorkkalan silta 1977: 60.0 m³/sPorkkalan silta 1978: 169 m³/sPorkkalan silta 1979: 100 m³/sPorkkalan silta 1980: 172 m³/sPorkkalan silta 1981: 216 m³/sPorkkalan silta 1982: 178 m³/sPorkkalan silta 1983: 123 m³/sPorkkalan silta 1984: 176 m³/sPorkkalan silta 1985: 104 m³/sPorkkalan silta 1986: 123 m³/sPorkkalan silta 1987: 112 m³/sPorkkalan silta 1988: 219 m³/sPorkkalan silta 1989: 93.0 m³/sPorkkalan silta 1990: 83.3 m³/sPorkkalan silta 1991: 152 m³/sPorkkalan silta 1992: 199 m³/sPorkkalan silta 1993: 116 m³/sPorkkalan silta 1994: 128 m³/sPorkkalan silta 1995: 101 m³/sPorkkalan silta 1996: 187 m³/sPorkkalan silta 1997: 128 m³/sPorkkalan silta 1998: 113 m³/sPorkkalan silta 1999: 238 m³/sPorkkalan silta 2000: 117 m³/sPorkkalan silta 2001: 133 m³/sPorkkalan silta 2002: 101 m³/sPorkkalan silta 2003: 73.0 m³/sPorkkalan silta 2004: 88.0 m³/sPorkkalan silta 2005: 124 m³/sPorkkalan silta 2006: 87.0 m³/sPorkkalan silta 2007: 144 m³/sPorkkalan silta 2008: 103 m³/sPorkkalan silta 2009: 101 m³/sPorkkalan silta 2010: 86.0 m³/sPorkkalan silta 2011: 182 m³/sPorkkalan silta 2012: 167 m³/sPorkkalan silta 2013: 74.4 m³/sPorkkalan silta 2014: 147 m³/sPorkkalan silta 2015: 125 m³/sPorkkalan silta 2016: 119 m³/sPorkkalan silta 2017: 141 m³/sPorkkalan silta 2018: 137 m³/sPorkkalan silta 2019: 117 m³/sPorkkalan silta 2020: 111 m³/sPorkkalan silta 2021: 115 m³/sPorkkalan silta 2022: 119 m³/sPorkkalan silta 2023: 175 m³/sPorkkalan silta 2025: 100 m³/s

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
PeriodPorkkalan silta (m³/s)
1962103
1963170
1964161
1965114
1966117
1967176
1968205
1969183
1970219
1971111
1972194
1973143
1974200
1975121
1976219
197760.0
1978169
1979100
1980172
1981216
1982178
1983123
1984176
1985104
1986123
1987112
1988219
198993.0
199083.3
1991152
1992199
1993116
1994128
1995101
1996187
1997128
1998113
1999238
2000117
2001133
2002101
200373.0
200488.0
2005124
200687.0
2007144
2008103
2009101
201086.0
2011182
2012167
201374.4
2014147
2015125
2016119
2017141
2018137
2019117
2020111
2021115
2022119
2023175
2025100

The longest record here

Mean river flow at Porkkalan silta
Annual means of the daily record, 1962–2025. One gauge, not this drainage area.
Mean river flow at Porkkalan siltaMean river flow at Porkkalan silta: Porkkalan silta in m³/s, from 1962 to 2025.10203040m³/s19621970197819861994200220102018Porkkalan silta 1962: 31.5 m³/sPorkkalan silta 1963: 21.6 m³/sPorkkalan silta 1964: 24.4 m³/sPorkkalan silta 1965: 24.7 m³/sPorkkalan silta 1966: 23.1 m³/sPorkkalan silta 1967: 28.0 m³/sPorkkalan silta 1968: 19.2 m³/sPorkkalan silta 1969: 18.2 m³/sPorkkalan silta 1970: 19.6 m³/sPorkkalan silta 1971: 22.8 m³/sPorkkalan silta 1972: 19.7 m³/sPorkkalan silta 1973: 21.9 m³/sPorkkalan silta 1974: 29.2 m³/sPorkkalan silta 1975: 24.5 m³/sPorkkalan silta 1976: 16.9 m³/sPorkkalan silta 1977: 28.7 m³/sPorkkalan silta 1978: 11.5 m³/sPorkkalan silta 1979: 22.5 m³/sPorkkalan silta 1980: 13.1 m³/sPorkkalan silta 1981: 28.2 m³/sPorkkalan silta 1982: 24.3 m³/sPorkkalan silta 1983: 25.3 m³/sPorkkalan silta 1984: 23.3 m³/sPorkkalan silta 1985: 20.1 m³/sPorkkalan silta 1986: 22.0 m³/sPorkkalan silta 1987: 23.7 m³/sPorkkalan silta 1988: 17.6 m³/sPorkkalan silta 1989: 28.3 m³/sPorkkalan silta 1990: 14.2 m³/sPorkkalan silta 1991: 24.7 m³/sPorkkalan silta 1992: 24.5 m³/sPorkkalan silta 1993: 22.0 m³/sPorkkalan silta 1994: 16.0 m³/sPorkkalan silta 1995: 21.2 m³/sPorkkalan silta 1996: 16.7 m³/sPorkkalan silta 1997: 17.5 m³/sPorkkalan silta 1998: 26.4 m³/sPorkkalan silta 1999: 19.0 m³/sPorkkalan silta 2000: 26.9 m³/sPorkkalan silta 2001: 16.1 m³/sPorkkalan silta 2002: 13.5 m³/sPorkkalan silta 2003: 14.9 m³/sPorkkalan silta 2004: 19.3 m³/sPorkkalan silta 2005: 22.6 m³/sPorkkalan silta 2006: 17.7 m³/sPorkkalan silta 2007: 22.5 m³/sPorkkalan silta 2008: 26.4 m³/sPorkkalan silta 2009: 17.8 m³/sPorkkalan silta 2010: 21.6 m³/sPorkkalan silta 2011: 21.2 m³/sPorkkalan silta 2012: 31.3 m³/sPorkkalan silta 2013: 22.4 m³/sPorkkalan silta 2014: 25.2 m³/sPorkkalan silta 2015: 37.9 m³/sPorkkalan silta 2016: 27.1 m³/sPorkkalan silta 2017: 24.5 m³/sPorkkalan silta 2018: 17.3 m³/sPorkkalan silta 2019: 19.5 m³/sPorkkalan silta 2020: 37.2 m³/sPorkkalan silta 2021: 26.1 m³/sPorkkalan silta 2022: 22.1 m³/sPorkkalan silta 2023: 26.5 m³/sPorkkalan silta 2024: 29.7 m³/sPorkkalan silta 2025: 25.5 m³/s

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
PeriodPorkkalan silta (m³/s)
196231.5
196321.6
196424.4
196524.7
196623.1
196728.0
196819.2
196918.2
197019.6
197122.8
197219.7
197321.9
197429.2
197524.5
197616.9
197728.7
197811.5
197922.5
198013.1
198128.2
198224.3
198325.3
198423.3
198520.1
198622.0
198723.7
198817.6
198928.3
199014.2
199124.7
199224.5
199322.0
199416.0
199521.2
199616.7
199717.5
199826.4
199919.0
200026.9
200116.1
200213.5
200314.9
200419.3
200522.6
200617.7
200722.5
200826.4
200917.8
201021.6
201121.2
201231.3
201322.4
201425.2
201537.9
201627.1
201724.5
201817.3
201919.5
202037.2
202126.1
202222.1
202326.5
202429.7
202525.5

Every gauge Hydrionis holds within this area

Gauges within the Kiiminginjoki and what each holds
GaugeMeasuresValuesRecord
Porkkalan siltamean river flow23,6241962–2026
Nuorittajokimean river flow21,8231967–2026
Iso Puutiojärvi - luusuamean river flow18,8821975–2026
Haukipudasmean river flow18,1701977–2026
Haukipudasmean river flow18,0761911–1976

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 — 60. 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
GaugeEvidenceEstablished
Porkkalan siltaStated by the publisher on the record this gauge’s observations came from.With the observations
NuorittajokiStated by the publisher on the record this gauge’s observations came from.With the observations
Iso Puutiojärvi - luusuaStated by the publisher on the record this gauge’s observations came from.With the observations
HaukipudasStated by the publisher on the record this gauge’s observations came from.With the observations
HaukipudasStated 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
SignalHeldCounts
Gauges holding a real record5yes, 3 or more
Years spanned116yes, 20 or more
Values held100,575yes, 1000 or more
Distinct measurements1no
Publishers measuring it1no
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

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.

Contains data from the Finnish Environment Institute (Syke), licensed under CC BY 4.0.

Suggested citation for Hydrionis

Hydrionis (2026), Kiiminginjoki gauge records, accessed 2026-10-05, hydrionis.com/waters/finland-kiiminginjoki/

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 Kiiminginjoki 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

MeasuredHigh confidence2026-09-30

Source: Syke — Hydrologiarajapinta — Finnish national hydrological archive, 6000100. Licence: Open — attribution required (attribution required).

Method: Daily discharge exactly as the Finnish Environment Institute publishes it. Syke computes the daily value from its own 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. Values Syke flags as possibly erroneous are not stored.

131 of these values (1%) are interpolated by Syke rather than measured, and are marked as such in its own archive. Station in the Kiiminginjoki main drainage basin, Rekikylän - Kirkkosaaren a sub-basin. Discharge is a property of this gauge and this reach, not of the river as a whole.

Retrieved 1 October 2026.