Search
Menu

Explore

Hazards

Analysis

Rankings

Reference

Sugar River (NH) at West Claremont

Highest listed crest 11.80 ftFlood stage 7.0 ft18 crests since 1936

The Sugar River (NH) at West Claremont crested at major flood stage 2 times among the 18 crests the National Weather Service lists from 1936 to 2023. The highest, 11.80 ft on March 12, 1936, was major flooding, 4.80 feet above flood stage.

The gauge

Highest listed crest
11.80 ft
March 12, 1936
Flood stage
7.0 ft
Major flooding from 11.0 ft
Crests at major
2
11th of 34 gauges in New Hampshire
Most recent flood crest
July 11, 2023
8.48 ft, minor flooding
Location
Sullivan County
Near Claremont (1.4 mi)

Flood stages

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

Flood categories, Sugar River (NH) at West Claremont
Action stage5.00—The level at which the NWS or its partners begin to take action
Flood stage (minor)7.013Jul 11, 2023Minimal or no property damage, but possibly some public threat
Moderate flood stage9.03Mar 27, 1992Some inundation of structures and roads near the stream
Major flood stage11.02Feb 16, 1984Extensive inundation of structures and roads

Every listed crest

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

Listed crests at the Sugar River (NH) at West Claremont, 1936 to 2023 789101112ft Flood stage 7.0 ftMajor 11.0 ft Mar 12, 1936: 11.80 ft, major floodingMar 19, 1936: 10.92 ft, moderate flooding; 14,000 cubic feet per secondSep 21, 1938: 10.49 ft, moderate flooding; 13,100 cubic feet per secondFeb 11, 1970: 8.68 ft, minor flooding; 4,500 cubic feet per secondDec 22, 1973: 7.47 ft, minor flooding; 6,550 cubic feet per secondMar 14, 1977: 7.00 ft, minor flooding; 6,420 cubic feet per secondJan 9, 1978: 8.71 ft, minor flooding; 8,920 cubic feet per secondFeb 16, 1984: 11.43 ft, major floodingMay 30, 1984: 7.70 ft, minor flooding; 6,950 cubic feet per secondApr 1, 1987: 8.51 ft, minor flooding; 8,440 cubic feet per secondMar 27, 1992: 10.99 ft, moderate floodingMar 30, 1993: 7.76 ft, minor flooding; 7,050 cubic feet per secondApr 19, 1997: 7.02 ft, minor flooding; 5,730 cubic feet per secondSep 17, 1999: 7.12 ft, minor flooding; 5,990 cubic feet per secondApr 3, 2005: 7.31 ft, minor flooding; 6,590 cubic feet per secondOct 9, 2005: 8.95 ft, minor flooding; 9,740 cubic feet per secondApr 17, 2007: 8.12 ft, minor flooding; 7,840 cubic feet per secondJul 11, 2023: 8.48 ft, minor flooding; 9,143 cubic feet per second Highest, 11.80 ft, Mar 12, 1936 19401960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Sugar River (NH) at West Claremont 1930s: 3 1940s: 0 1950s: 0 1960s: 0 1970s: 4 4 1980s: 3 1990s: 4 2000s: 3 2010s: 0 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, Sugar River (NH) at West Claremont
1Mar 12, 193611.80+4.80Major—
2Feb 16, 198411.43+4.43Major—
3Mar 27, 199210.99+3.99Moderate—
4Mar 19, 193610.92+3.92Moderate14,000
5Sep 21, 193810.49+3.49Moderate13,100
6Oct 9, 20058.95+1.95Minor9,740
7Jan 9, 19788.71+1.71Minor8,920
8Feb 11, 19708.68+1.68Minor4,500
9Apr 1, 19878.51+1.51Minor8,440
10Jul 11, 20238.48+1.48Minor9,143
11Apr 17, 20078.12+1.12Minor7,840
12Mar 30, 19937.76+0.76Minor7,050
13May 30, 19847.70+0.70Minor6,950
14Dec 22, 19737.47+0.47Minor6,550
15Apr 3, 20057.31+0.31Minor6,590
16Sep 17, 19997.12+0.12Minor5,990
17Apr 19, 19977.02+0.02Minor5,730
18Mar 14, 19777.000.00Minor6,420

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

NOAA National Water Prediction Service, gauge WCLN3, 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.