New York

Storm History: Onondaga County, New York

560 episodes, 1,005 events since 1956

Every storm the National Weather Service has filed in Onondaga County, New York: floods, hail, damaging wind, tornadoes, winter storms, heat and the rest, with the most serious on record. Events filed by forecast zone count for every county the zone covers.

The record

Events
1,005
Deaths
9
Injuries
39
Damage
$146 million
Episodes
560

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

Open the live radar over Onondaga County

Every year

From 1996 the record holds 48 kinds of event with each office’s narrative; before that, tornadoes, hail and thunderstorm wind only, and before 1955 tornadoes alone.

By kind of event

Counted under the kind that heads each episode.

Kind of eventEventsDeathsInjuriesDamage
Hail311411$91 million
Thunderstorm Wind188112$2.9 million
Tornado14908$15 million
Flash Flood9120$27 million
Heavy Snow8311$618,000
Lake-Effect Snow5500$55,000
High Wind2701$630,000
Winter Storm2600
Lightning1816$332,000
Cold/Wind Chill1300$30,000
Flood1300$74,000
Ice Storm800$7.0 million
Drought500
Extreme Cold/Wind Chill400
Heat300
Blizzard300
Winter Weather200
Strong Wind200$10,000
Excessive Heat200
Heavy Rain100
Funnel Cloud100

The deadliest

The costliest

Damage within this county, in the dollars of its year.

The largest hail

The largest stone in each episode, which may have fallen in a neighboring county of the same episode.

The strongest tornadoes

Every tornado in Onondaga County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Onondaga CountyEvery warning in Onondaga County since 1986Every county in New York

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.