Water Data

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St. John River at Mt. Finlay
Area15723 km2
Stream Length424 km
Start Date9/4/2013
End Date22-01-2026
Mean Flow394.16 m3/s
Mean Annual Catchment Runoff791 mm
Mean Specific Flow25 l/skm2
Minimum daily flow13.91 m3/s, 30-03-2019
Maximum daily flow2101.36 m3/s, 17-09-2017
Water YearMay to April
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St. John River at Mt. Finlay
Average annual streamflow (m3/s)
(m3/s)
water year (may to april)
difference from mean annual streamflow (m3/s)
(m3/s)
water year (may to april)
mean monthly streamflow (m3/s)
(m3/s)
water year (may to april)
percentage of mean annual flow volume (%)
(%)
water year (may to april)
average daily streamflow (m3/s)
(m3/s)
daily flow duration curve (m3/s)
(m3/s)
St. John River at Mt. Finlay
Basin06 Saint John
RiverSaint John
StationMt. Finlay
LHS ID06SJ002
Location9.87 °N 6.084 °W
GaugeManual staff gauge, additional OTT Orpheus Mini pressure sensor
Rating Curve 40 flow measurements within the range 25m3/s to 1090m3/s
Area15723 km2
Stream Length424 km
Max elevation1730 m
Min elevation65m
Start Date9/4/2013
End Date22-01-2026
Mean Annual Catchment Runoff791 mm
Mean Specific Flow25 l/skm2
Water YearMay to April
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2017.10.26_06SJ002_7 received_280520779912913 received_949627828794602 received_1406750262867697