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Pemigewasset River at Plymouth water level

River gauge, Pemigewasset River, New Hampshire, United States

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Right now

Below flood stage

Water level

0.95ft Down 0.09 ft over the last 24 hours

Flow
385 cfs
0 10 20 30 Highest onrecord 29.00 ft Minor floodstage 13.00 ft

History

History
1.01.21.4ftOct 16Oct 18Oct 19Oct 21Oct 231.01.21.4ftOct 16Oct 19Oct 23
Water level Forecast Minor flood stage

The forecast expects the river to fall to 0.90 ft by Wednesday, October 21 at 02:00 PM. Issued Tuesday, October 20 at 10:49 AM by NOAA National Weather Service.

What this means

The Pemigewasset River at Plymouth is at 0.95 ft, in the normal range.

It is 12.05 ft below the flood stage of 13.00 ft.

It has dropped 0.09 ft over the past 24 hours. The forecast expects the river to fall to 0.90 ft by Wednesday, October 21 at 02:00 PM. In the last month it has stayed between 0.95 ft and 1.53 ft.

Judged against the official flood stage for this gauge. How to read levels

Key numbers

Highest on record
29.00 ftMarch 19, 1936
Forecast peak
1.00 ftTuesday, October 20 at 08:00 PM

Floating and fishing near Pemigewasset River at Plymouth

Normal flows mean predictable rapids and good access at most put-ins.

Flood stage here is 13.00 ft, 12.05 ft above the current reading. Beyond it, the National Weather Service also defines moderate and major flood stages.

What happens at each level

22.00 ft
Flood waters 5 to 6 feet deep on route 175A in Holderness.
20.10 ft
Flood waters rise to the doors of the PSU physical education center and the PSU ice arena.
18.00 ft
South River Road and Avery Street flood in Holderness.
15.50 ft
Flood waters over the road at the Irving station on route 175A in Holderness.
15.00 ft
Flood waters up to the road at the Irving station on route 175A in Holderness.
14.00 ft
Water enters the parking lot behind the PSU ice arena.
13.00 ft
Minor lowland flooding begins.
0.95 ft
Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

Chance of at least minor flooding in October to December: 8 %.

RankLevelDate
129.00 ftMarch 19, 1936
227.40 ftNovember 4, 1927
323.62 ftSeptember 21, 1938
423.43 ftApril 1, 1987
522.68 ftOctober 25, 1959
622.33 ftJuly 1, 1973
721.69 ftAugust 29, 2011
821.20 ftMarch 27, 1953
920.61 ftDecember 22, 1973
1020.58 ftDecember 19, 2023

Weather at the gauge

The forecast is not available right now.

Sunrise 07:09 AM Sunset 05:55 PM Daylight 10 hr, 46 min Waxing gibbous 74%

Map

Other gauges on the Pemigewasset River

Gauge Level Compared with normal 24 hours Distance
Pemigewasset River at WoodstockRiver gauge, Pemigewasset River 2.61 ft Below flood stage −0.09 ft 15 mi

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Cockermouth River below Hardy Brook, at GrotonRiver gauge, Cockermouth River 1.46 ft Below flood stage −0.06 ft 8 mi
Baker River near RumneyRiver gauge, Baker River 0.62 ft Below flood stage −0.07 ft 8 mi
Smith River near BristolRiver gauge, Smith River 2.05 ft Below flood stage −0.07 ft 14 mi
East Branch Pemigewasset River at LincolnRiver gauge, East Branch Pemigewasset River 122 cfs Normal −18.0 cfs 20 mi
Bearcamp River at South TamworthRiver gauge, Bearcamp River 31.7 cfs Low −4.3 cfs 20 mi
Winnipesaukee River at TiltonRiver gauge, Winnipesaukee River 2.71 ft Below flood stage −0.16 ft 22 mi
Merrimack River at Franklin JunctionRiver gauge, Merrimack River 4.59 ft Below flood stage −0.03 ft 23 mi
Ompompanoosuc River at Union VillageRiver gauge, Ompompanoosuc River 48.9 cfs Normal −5.1 cfs 28 mi

Questions and answers

What is flood stage for the Pemigewasset River at Plymouth?

The official flood stage is 13.00 ft. The level is currently 12.05 ft below it.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Pemigewasset River at Plymouth today?

On Oct 21, 2026, 12:30 AM EDT, the water level was 0.95 ft. Down 0.09 ft over the last 24 hours.

Is Pemigewasset River at Plymouth rising or falling?

Down 0.09 ft over the last 24 hours. Down 0.21 ft over the last 7 days.

Is the level of Pemigewasset River at Plymouth normal?

Below flood stage. Judged against the official flood stage for this gauge.

What is the highest water level ever recorded at Pemigewasset River at Plymouth?

The highest level on record is 29.00 ft on March 19, 1936.

Is Pemigewasset River at Plymouth expected to rise?

The forecast expects the river to fall to 0.90 ft by Wednesday, October 21 at 02:00 PM.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Geological Survey
Station code
usgs:01076500 (Agency page)
Coordinates
43.75924, -71.68563 (WGS84)
Vertical datum
NAVD88
Update interval
every 15 minutes
Licence
Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

ParameterLast valueTime (UTC)Quality
Water level 0.95 ft 2026-10-21 04:30 Provisional
Flow 385 cfs 2026-10-21 04:30 Provisional

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How to cite

U.S. Geological Survey: Pemigewasset River at Plymouth (usgs:01076500). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/new-hampshire/pemigewasset-river-at-plymouth

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.