February 1857 - Highest Flood ever recorded in Albany (21.71 feet) caused by ice jammed on the sandbars south of the city.
March 1913 - Major flooding in the Northeast. Highest water on record for the Hudson from Hadley and Glens Falls south to and including Troy. Stages of 29.7 feet at Troy, 21.45 ft at Albany, 228.9 feet at Schenectady, and around 19 ft at Little Falls.
March 28, 1914 - Flood of Record at Schenectady - 232.9 Feet - water reached Broadway and flooded the former American Locomotive Plant on Maxon Road. Caused by ice jam.
November 3-5, 1927 - Disastrous flooding in New England with devastation over the northern 2/3 of Vermont. Floods of record for White, Winooski, Lamoille, Missisquoi rivers and Otter Creek. Flood of record for Batten Kill (17.7 ft) and major flood for Hoosic River (18.8 ft), also caused a significant flood on the Hudson at Albany (15.96 feet). Flooding was the result of rains from the remains of a late season hurricane.
March 12 -18, 1936 (Some consider two events) - Major flooding throughout the Northeast as a result of extremely heavy snowpack and a double dose of spring rains. Caused highest stages on Hudson at Troy (29.5) and Albany (17.9) since completion of Conklingville Dam. Flood of Record on Connecticut River at Thompsonville CT (just north of Hartford).
September 22, 1938 - Severe flooding on almost all of the region's river caused by the Great hurricane of 1938. Most severe across New England.
October 2, 1945 - Severe flood in Upper Mohawk area including record flood on East Canada Creek at Dolgeville (15.1 ft). Record flow on West Canada at Kast Bridge (8 ft) nearly destroyed the Daniel Greene factory in Dolgeville.
December 31, 1948 - January 2, 1949 - The famed New Years ice storm and flood which caused the flood of record on the Hoosic River at Kinderhook along with other streams. 17.5 foot crest in Albany. Involved a significant sleet storm as well as rain.
August 1955 - Back-to-back hurricanes, Connie and Diane struck the region following a rather severe drought so their effects were greatly reduced by the existing extremely dry conditions. On August 12, 15 inches of rain at Slide Mountain brought the Esopus Creek only up to 12 feet. Five days later, on August 17, hurricane Diane came right into the Hudson valley, which resulted in the worst flood disaster in the Lower Hudson Valley of New York and in the State of Connecticut. Floods of record on the Housatonic River at Gaylordsville (18.6 ft), Stevenson (24.5 ft), Shepaug(17 ft), and Tenmile River, as well as Rondout and Wappingers Creek. The village of Ellenville was nearly washed off the map, while the riverfront in Kingston was under nearly four feet of water.
October 1955 - Severe Flood on the Schoharie Creek, caused by a slow-moving coastal storm with 16 to 18 inches of rain over the Tannersville area and devastation in the Schoharie Valley (Burtonsville 12.4 feet, second highest of record).
September 1975 - Hurricane Eloise, caused significant (not record breaking) flooding on the Susquehanna and parts of Catskills.
March 14, 1977 - Worst regional flood over the area since the New Years Flood nearly 30 years earlier. An early warm spell (temperatures into the 70s and 80s), combined with a heavy snowpack, and 3 inches of rain, produced near record floods in Kaydeross/Saratoga area. Ramps to new Interstate 787 in downtown Albany were flooded, and the current in the Hudson undermined the Green Island Bridge causing it to buckle and eventually collapse (no fatalities or injuries).
January 1978 - Severe ice jam in Prattsville effectively blocked the streamflow from the full reservoir. Widespread flooding in the region with an entire herd of dairy cattle drowned in their barn.
March 1979 - Severe ice jamming caused flooding of many rivers including the Hudson, Mohawk, Susquehanna, and Chenango Rivers, as well as the Schoharie Creek.
November 1979 - Severe flash flood on the Boquet and the Branch in and near Elizabethtown. Numerous washouts on the road between Elizabethtown and Keene caused the deaths of four Olympic Bobsled hopefuls.
March 1980 - "The Great Catskill Toilet Flush" with around 10 inches of rain on nearly bare and frozen ground which led to rapidly developing and severe floods on Schoharie, Catskill, and Esopus creeks. A fatality occurred when a motorist ignored a roadblock.
February 1981 - Severe ice jamming on Mohawk River which nearly flooded the NY Thruway near Fonda.
April - May 1983 - "Spring Monsoon" with over 18 inches of rain for the two months in Ellenville and New York City. Sacandaga Reservoir spilled over (May 1) for the first time since the project was completed in 1930.
April 1987 - Severe flood on the Mohawk River and Catskills. Near Record flooding on Schoharie Creek with 10 deaths as a result of the sudden collapse of the New York State Thruway bridge over the Schoharie Creek.
February 1990 - Severe Ice jam on the Ausable East Branch with much of Ausable Forks village under water.
January 1996 - Major flood event throughout the region as a result of rapid meltdown of snowpack along with two to four inches of rain. Record flooding on Schoharie Creek and significant floods on Mohawk River at Schenectady, and on the Hudson at Albany (15.5 ft - greatest since New Years 1949).
January 1998 - A catastrophic ice storm and flood event struck northern New England and northern New York during the first two week of January 1998. Heavy rain associated with a warm moist airmass overspread a shallow but dense layer of cold air producing ice accumulations in excess of three inches. Heavy rainfall, exceeding four inches in some areas, combined with significant runoff from melting snowpack to produce record flooding.
September 1999 - Tropical Storm Floyd dumped very heavy rains (3 to almost 12 inches) across the region.
September 17-18, 2004 - The remnants of Hurricane Ivan dumped dumped heavy rains across the region, up to 6 inches in some locales.
January 2005 - In mid January warm, breezy conditions combined with high dew points melted most of the snow across the area. Runoff from the melt combined with runoff from heavy rains to cause some flooding and flash flooding. The stage below Stevenson Dam on the Housatonic was the highest since 1960. The stage on the Wappingers Creek at Wappingers Falls was the highest since 1987.
April 2005 - Combination of high pre-storm flows, rain plus snowmelt. A slow moving storm moved up through the Appalachians and into the Northeast, producing an extended period rainfall on April 2-4th. The heaviest rain and worst flooding occurred in Ulster and Greene Counties. Upslope flow enhanced rainfall amounts in the Catskills, where generally 3 to 6 inches fell. Flood of record occurred on the Esopus Creek (Mount Marion 26.24 feet). U.S.G.S. estimated it as 100 year event for the Upper Hudson Basin. Sacandaga Lake and Indian lake were nearly empty and were able to cut half the peak flow off the Hudson. As a result moderate as opposed to devastating flooding resulted on the Hudson River.
June 13, 2005 - Flash flooding which washed out a portion of the Northway between Exit 23 and 24.
October 2005 - According to the Drought Monitor of September 27, 2005, the southern part of the Albany Hydrologic Service Area was in a moderate drought. This changed dramatically in October 2005 as two rain events dumped a total 1 to 2 feet of rain across the driest areas. The first event, October 7-9th, the remnants of Tropical Storm Tammy interacted with a cold front. Then a stationary low pressure sat south of Long Island and brought periods of heavy rain to New York and New England the 12th through 14th. The worst flooding occurred in Dutchess County, New York and Litchfield County, Connecticut where moderate to major flooding was reported.
End of June 2006 - Widespread flooding in the Mohawk and Hudson basins, and Catskills was observed.Flooding was most severe along the Mohawk River and its tributaries. On Tuesday, June 27th, a frontal boundary stalled across the region. The boundary extended from southern Quebec across central New York and to Florida. A weak disturbance of tropical origin moved through southeast New York Wednesday morning yielding additional tropical moisture. A strong low level jet developed which transported tropical moisture into central and eastern New York.
April 15-16, 2007 - Widespread flooding across much of eastern New York and western New England, especially in the eastern Catskills, Mid-Hudson Valley and across Litchfield County Connecticut.
January 25-26, 2010 - Widespread flooding occurred across East Central New York and adjacent western New England from a combination of rain, snowmelt and frozen ground.
September 30 - October 1 - The remnants of Tropical Storm Nicole moved northward along a nearly stationary boundary along the east coast bringing abundant tropical moisture into the region. Rainfall reports ranged from just over 3 inches up to 9 inches across east central New York and adjacent western New England.
March 11-13, 2011 - Heavy rainfall, snowmelt and ice jams. The combination of the heavy rainfall and runoff from the snowmelt caused flooding of rivers, streams, creeks, roads, and some urban low lying areas.
Tropical Storm Irene: August 28, 2011 - Heavy to extreme rainfall resulted catastrophic flooding across portions of east central New York and adjacent western New England.
Remnants of Tropical Storm Lee: September 5-8, 2011 - Heavy rainfall, combined with saturated soil from the excessive rains which fell in late August associated with the passage of Irene, led to widespread minor to moderate flooding on rivers, as well as small streams and creeks across eastern New York and adjacent western New England. Some major flooding did occur across portions of the western Mohawk River. In addition, flash flooding occurred across portions of the eastern Catskills and western Mohawk River Valley.