NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Williamstown, NY
Every tropical system within 75 miles since 1851 and every tornado within 25 miles since 1950.
Data: NOAA NHC HURDAT2 and NOAA SPC tornado and hail reports, through 2025 · Updated
5 tropical systems have passed within 75 miles of Williamstown, New York since 1851, 0 of them at hurricane strength; the most recent was Agnes in 1972. Since 1950, 31 tornadoes have touched down within 25 miles, 3 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 5
- Tornadoes
- 31
- EF3 or stronger
- 3
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
2 deaths in all
What the records show for Williamstown
None of the 5 tropical systems was at hurricane strength as it passed Williamstown; the strongest was an unnamed storm in 1893, a tropical storm with 69 mph winds when its centre passed 68 miles away. The record near Williamstown begins with an unnamed storm in 1876; the most recent system was Agnes in 1972, a tropical storm 59 miles away. None of the 5 systems has come since 2000. Of the 809 New York cities on this site, 94% have more tropical storms and hurricanes within 75 miles than Williamstown. The highest rating among the 31 tornadoes within 25 miles is F3 or EF3, reached 3 times; the most recent, on August 7, 2023, came within 20 miles. The deadliest, an EF1 on July 16, 2024, killed 1 person. Of the 31, none had a path within 5 miles of the city centre, and 16 have come since 2000. August has had the most tornadoes, 10. The most recent tornado was on September 4, 2025. Williamstown has more tornadoes within 25 miles than 56% of the 809 New York cities. Hail has been reported within 10 miles 14 times since 1993, with stones up to 1.75 inches (golf ball size). Of the 809 New York cities, 89% have more hail reports within 10 miles than Williamstown.
Compare Williamstown's storm record with another city →
Tropical storms and hurricanes near Williamstown
| Year | Storm | Closest | Strength when closest | Peak |
|---|---|---|---|---|
| 1972 | AgnesJun 23 | 59 mi | Tropical storm (52 mph) | Category 1 |
| 1933 | Unnamed 1933 stormAug 24 | 73 mi | Tropical storm (40 mph) | Category 4 |
| 1903 | Unnamed 1903 stormSep 17 | 55 mi | Tropical storm (44 mph) | Category 2 |
| 1893 | Unnamed 1893 stormOct 14 | 68 mi | Tropical storm (69 mph) | Category 3 |
| 1876 | Unnamed 1876 stormSep 18 | 29 mi | Tropical storm (45 mph) | Category 3 |
Strength is the sustained wind on the track at the closest point, which is not the wind felt in Williamstown: a hurricane's worst winds sit within a few dozen miles of its centre, and inland cities are usually past that.
Tornadoes within 25 miles of Williamstown
By decade
- 2020s10(1 EF3+)
- 2010s4
- 2000s2
- 1990s9
- 1980s5(2 EF3+)
- 1960s1
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| May 2, 1983 | F3 | 20 mi | 20 mi | 1 / 0 |
| Aug 7, 2023 | EF3 | 20 mi | 16 mi | 0 / 0 |
| May 2, 1983 | F3 | 21 mi | 3 mi | 0 / 0 |
| Jul 16, 2024 | EF1 | 25 mi | 1.42 mi | 1 / 0 |
| Jul 16, 2024 | EF1 | 18 mi | 6.5 mi | 0 / 0 |
| Jul 10, 2024 | EF1 | 12 mi | 2.2 mi | 0 / 0 |
| Aug 7, 2023 | EF1 | 17 mi | 1.38 mi | 0 / 0 |
| Jun 3, 2021 | EF1 | 19 mi | 1.2 mi | 0 / 0 |
| Jul 8, 2014 | EF1 | 22 mi | 1 mi | 0 / 0 |
| Apr 26, 2011 | EF1 | 22 mi | 0.86 mi | 0 / 0 |
| Aug 1, 2005 | F1 | 24 mi | 1.5 mi | 0 / 0 |
| May 26, 1994 | F1 | 21 mi | 0.3 mi | 0 / 0 |
The strongest 12 of 31, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Williamstown
The Storm Prediction Center has 14 hail reports within 10 miles of Williamstown since 1993, made on 8 separate days. Of these, 7 were 1 inch across or larger, and none reached 2 inches. The largest, 1.75 inches (golf ball size), fell on May 18, 2017. The most recent report is from August 12, 2017. May has the most reports, 9.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Williamstown
The nearest NOAA station with 1991–2020 climate normals is Camden, NY, 7 miles southeast of Williamstown at 580 feet. July is the warmest, with an average high of 81°F and low of 56°F; January is the coolest, at 29°F and 11°F. October is the wettest at 5.1 inches of precipitation on average and March the driest at 3.3 inches; the year adds up to 50.0 inches over 109 days with at least a tenth of an inch. Highs reach 90°F on about 4 days a year, almost all from July. Lows fall below freezing on about 162 nights a year. Snowfall averages 151.3 inches a year, most of it in January. That 50.0 inches is more than at 122 of the 137 New York stations used on this site (89%). Parish, 10 miles west, has its own station (Fulton Oswego Co Airport, NY): 39.6 inches a year, 10.4 less than here, and a July average high of 80°F against 81°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" | Snow in |
|---|---|---|---|---|---|
| Jan | 29 | 11 | 3.9 | 10 | 41.4 |
| Feb | 31 | 11 | 3.4 | 9 | 38.0 |
| Mar | 39 | 20 | 3.3 | 8 | 17.1 |
| Apr | 54 | 32 | 4.1 | 9 | 2.9 |
| May | 67 | 43 | 4.3 | 9 | 0.0 |
| Jun | 76 | 52 | 4.4 | 8 | 0.0 |
| Jul | 81 | 56 | 4.5 | 8 | 0.0 |
| Aug | 79 | 55 | 4.0 | 8 | 0.0 |
| Sep | 73 | 48 | 4.3 | 8 | 0.0 |
| Oct | 59 | 38 | 5.1 | 11 | 1.1 |
| Nov | 46 | 29 | 4.4 | 9 | 15.6 |
| Dec | 35 | 19 | 4.3 | 12 | 35.2 |
| Year | 56 | 35 | 50.0 | 109 | 151.3 |
Averages for 1991–2020 at Camden, NY (580 ft), from NOAA NCEI U.S. Climate Normals. Normals describe the station; the farther a place is from it, and the bigger the difference in height, the more its weather can differ.
Floods, thunderstorm wind and lightning near Williamstown
Since 1996, the National Weather Service has logged 96 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Williamstown: 84 thunderstorm wind reports, 6 flash floods, 4 floods and 2 heavy rain events. None is recorded as killing or injuring anyone; the NWS estimated $648,000 in property and crop damage. The strongest thunderstorm gust on record here was 81 mph, on August 12, 2017. August has had the most flash floods, 5 of 6. Of the 798 New York cities on this site with a flash flood on record, 81 have had fewer than Williamstown.
Source: NOAA NCEI Storm Events Database, events whose starting point is on record, 1996 to June 30, 2026. Damage is the NWS estimate in the dollars of the year, not insured losses, and NWS notes that some reports are unverified.
Flood insurance claims, disaster declarations and FEMA risk ratings
Oswego County, which includes Williamstown, has been named in 21 federal disaster or emergency declarations since 1972, 12 of them major disasters (by incident: 6 floods, 3 severe storms, 3 snowstorms, 2 biological emergencies). The latest major disaster declaration was Severe Storm and Flooding, on October 21, 2024. FEMA's National Risk Index gives Oswego County a Relatively Low rating for natural hazard risk overall; by hazard: Relatively Moderate for inland flooding, strong wind and lightning; Relatively Low for hurricanes, tornadoes and heat waves; Very Low for hail and coastal flooding. It models the county's expected loss from all 18 hazards it covers at $26.6 million a year, the 35th highest of 62 New York counties; of the hazards above, the largest share, $21.7 million (81%), is from inland flooding.
Claims: FEMA, OpenFEMA Dataset FIMA NFIP Redacted Claims – v3, summed over ZIP codes; payments in the dollars of each year, not adjusted for inflation. Declarations: Disaster Declarations Summaries – v2, by county. Retrieved October 25, 2026. This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
Risk ratings: FEMA, National Risk Index county table, December 2025 (v1.20), retrieved October 26, 2026; ratings compare counties nationwide, are meant for planning and are no substitute for a local risk assessment. This product uses the Federal Emergency Management Agency's National Risk Index dataset API or downloadable datasets but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
What counts as a pass, the distances and the sources: how this storm history is built.