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Connecticut River at North Walpole

Highest listed crest 43.80 ftFlood stage 28.0 ft28 crests since 1936

The Connecticut River at North Walpole crested at major flood stage 2 times among the 28 crests the National Weather Service lists from 1936 to 2023. The highest, 43.80 ft on March 19, 1936, was major flooding, 15.80 feet above flood stage. 9 other gauges on the Connecticut River crested above flood stage within a week of it, 8 at their own highest listed crest.

The gauge

Highest listed crest
43.80 ft
March 19, 1936
Flood stage
28.0 ft
Major flooding from 35.0 ft
Crests at major
2
11th of 34 gauges in New Hampshire
Most recent flood crest
July 11, 2023
28.22 ft, minor flooding
Location
Cheshire County
Near Keene (13.6 mi)

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, Connecticut River at North Walpole
Action stage26.07May 31, 1984The level at which the NWS or its partners begin to take action
Flood stage (minor)28.08Jul 11, 2023Minimal or no property damage, but possibly some public threat
Moderate flood stage32.00—Some inundation of structures and roads near the stream
Major flood stage35.02Sep 22, 1938Extensive inundation of structures and roads

Every listed crest

28 crests from 1936 to 2023. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Connecticut River at North Walpole, 1936 to 2023 1020304050ft Flood stage 28.0 ftMajor 35.0 ft Mar 19, 1936: 43.80 ft, major floodingSep 22, 1938: 39.10 ft, major floodingApr 13, 1947: 25.15 ft, below flood stageMar 22, 1948: 29.55 ft, minor flooding; 93,000 cubic feet per secondJun 2, 1952: 27.30 ft, action stageMar 27, 1953: 30.37 ft, minor flooding; 97,000 cubic feet per secondApr 23, 1958: 26.13 ft, action stageApr 4, 1959: 27.70 ft, action stageApr 5, 1960: 29.85 ft, minor flooding; 94,400 cubic feet per secondMar 24, 1968: 29.57 ft, minor flooding; 93,100 cubic feet per secondApr 19, 1969: 26.99 ft, action stageMay 5, 1972: 25.33 ft, below flood stageJul 1, 1973: 28.68 ft, minor flooding; 88,600 cubic feet per secondDec 22, 1973: 25.84 ft, below flood stageApr 2, 1976: 27.98 ft, action stageMar 14, 1977: 26.39 ft, action stageMar 7, 1979: 25.40 ft, below flood stageApr 18, 1982: 25.79 ft, below flood stageMay 31, 1984: 27.82 ft, action stageApr 1, 1987: 29.05 ft, minor flooding; 92,700 cubic feet per secondApr 17, 1994: 25.25 ft, below flood stageJan 18, 1995: 16.75 ft, below flood stage; 36,400 cubic feet per secondMay 13, 1996: 24.15 ft, below flood stage; 67,600 cubic feet per secondApr 1, 1998: 25.75 ft, below flood stageApr 23, 2001: 25.31 ft, below flood stageAug 29, 2011: 31.38 ft, minor flooding; 99,700 cubic feet per secondJul 11, 2023: 28.22 ft, minor flooding; 84,429 cubic feet per secondDec 19, 2023: 24.53 ft, below flood stage; 67,500 cubic feet per second Highest, 43.80 ft, Mar 19, 1936 19401960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Connecticut River at North Walpole 1930s: 2 2 1940s: 1 1950s: 1 1960s: 2 1970s: 1 1980s: 1 1990s: 0 2000s: 0 2010s: 1 2020s: 1 1930s1940s1950s1960s1970s1980s1990s2000s2010s2020s
  1. These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
  2. Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.

Highest crests

Highest listed crests, Connecticut River at North Walpole
1Mar 19, 193643.80+15.80Major—
2Sep 22, 193839.10+11.10Major—
3Aug 29, 201131.38+3.38Minor99,700
4Mar 27, 195330.37+2.37Minor97,000
5Apr 5, 196029.85+1.85Minor94,400
6Mar 24, 196829.57+1.57Minor93,100
7Mar 22, 194829.55+1.55Minor93,000
8Apr 1, 198729.05+1.05Minor92,700
9Jul 1, 197328.68+0.68Minor88,600
10Jul 11, 202328.22+0.22Minor84,429
11Apr 2, 197627.98−0.02Action—
12May 31, 198427.82−0.18Action—
13Apr 4, 195927.70−0.30Action—
14Jun 2, 195227.30−0.70Action—
15Apr 19, 196926.99−1.01Action—
16Mar 14, 197726.39−1.61Action—
17Apr 23, 195826.13−1.87Action—
18Dec 22, 197325.84−2.16Below flood stage—
19Apr 18, 198225.79−2.21Below flood stage—
20Apr 1, 199825.75−2.25Below flood stage—
21Mar 7, 197925.40−2.60Below flood stage—
22May 5, 197225.33−2.67Below flood stage—
23Apr 23, 200125.31−2.69Below flood stage—
24Apr 17, 199425.25−2.75Below flood stage—
25Apr 13, 194725.15−2.85Below flood stage—
26Dec 19, 202324.53−3.47Below flood stage67,500
27May 13, 199624.15−3.85Below flood stage67,600
28Jan 18, 199516.75−11.25Below flood stage36,400

The worst floods along the Connecticut River

For this gauge's highest crests, the other gauges on the Connecticut River that crested above flood stage within a week.

March 19, 1936: 43.80 ft here, major flooding

  • NorthamptonMA · Mar 19, 1936 · 129.40 ft · Major · its highest
  • MontagueMA · Mar 19, 1936 · 49.20 ft · Major · its highest
  • HartfordCT · Mar 21, 1936 · 37.60 ft · Major · its highest
  • West LebanonNH · Mar 19, 1936 · 32.60 ft · Major
  • SpringfieldMA · Mar 20, 1936 · 28.60 ft · Major · its highest
  • ThompsonvilleCT · Mar 20, 1936 · 26.60 ft · Major · its highest
  • DaltonNH · Mar 20, 1936 · 25.60 ft · Major · its highest
  • Holyoke - UpperMA · Mar 19, 1936 · 16.80 ft · Major · its highest
  • North StratfordNH · Mar 13, 1936 · 16.66 ft · Moderate · its highest

September 22, 1938: 39.10 ft here, major flooding

August 29, 2011: 31.38 ft here, minor flooding

  • West LebanonNH · Aug 29, 2011 · 29.66 ft · Major
  • NorthamptonMA · Aug 30, 2011 · 117.16 ft · Moderate
  • MontagueMA · Aug 29, 2011 · 35.91 ft · Moderate
  • HartfordCT · Aug 31, 2011 · 24.78 ft · Moderate
  • ThompsonvilleCT · Aug 30, 2011 · 17.82 ft · Moderate
  • Holyoke - UpperMA · Aug 30, 2011 · 10.40 ft · Moderate
  • HolyokeMA · Aug 30, 2011 · 27.73 ft · Minor · its highest

Gauges on the Connecticut River

Flood gauges sharing the river's name, linked within 80 miles of one another.

Flood gauges on the Connecticut River
DaltonNH18.025.60 ft, Mar 20, 19363
HartfordCT16.037.60 ft, Mar 21, 19367
HolyokeMA26.527.73 ft, Aug 30, 20110
Holyoke - UpperMA9.016.80 ft, Mar 19, 193610
Middle HaddamCT7.011.20 ft, Dec 21, 20230
MontagueMA28.049.20 ft, Mar 19, 19362
North StratfordNH13.016.66 ft, Mar 13, 19360
North Walpole this gaugeNH28.043.80 ft, Mar 19, 19362
NorthamptonMA112.0129.40 ft, Mar 19, 19363
SpringfieldMA20.028.60 ft, Mar 20, 19362
ThompsonvilleCT15.026.60 ft, Mar 20, 19367
Wells RiverVT12.017.35 ft, Jul 1, 19731
West LebanonNH23.035.00 ft, Nov 4, 19274

Other gauges in Cheshire County

Flood gauges in Cheshire County
West Swanzey11.012.89 ft, Jul 19, 20210
Hinsdale8.020.20 ft, Mar 19, 19362
Keene73.074.60 ft, Oct 9, 20050
Gilsum9.511.36 ft, Jul 11, 20230
Alstead9.011.78 ft, Jul 29, 20212

Cheshire County: every hazard · River floods across the country · New Hampshire

NOAA National Water Prediction Service, gauge WLPN3, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.