Watertown, MA Tornado History — 52 Tornadoes Since 1950
How many tornadoes has Watertown, MA had?
Watertown has had 52 tornadoes on record within 25 miles since 1950, including 4 strong to violent (EF3+) tornadoes.
When was the most recent tornado near Watertown?
The most recent tornado within 25 miles of Watertown was an EF0 on September 6, 2025.
When is tornado season in Watertown?
July is historically the peak month for tornadoes near Watertown, with 14 on record. April through June account for 14 of the 52 tornadoes on record near Watertown.
At a Glance
Recent Tornado Activity Near Watertown
The last 20 years of confirmed tornadoes within 25 miles — 13 total, averaging 0.7 per year over this window.
What storm spotters reported near Watertown
One local storm report has been filed within 25 miles of Watertown and since confirmed into the NOAA archive, the earliest on September 6, 2025 and the most recent on September 6, 2025. It is already counted in the Watertown totals above; quoted below is the narrative the reporting office filed at the time.
AN EF1 TORNADO TOUCHED DOWN IN STOW... MA NEAR MAPLE STREET AND CONTINUED ENE OVER BOSE AVENUE CAUSING SIGNIFICANT TREE DAMAGE. THE TORNADO LIFTED SOMEWHERE NEAR HARVES (BOX)
Source: National Weather Service and trained-spotter local storm reports, relayed by the NOAA Storm Prediction Center.
Tornadoes by Decade
Tornadoes by Enhanced Fujita Rating
F0–F5 ratings (pre-2007) are grouped with their EF equivalents. The Enhanced Fujita scale replaced the original Fujita scale in February 2007.
Tornadoes by Month
Casualties on Record Near Watertown
96 fatalities have been recorded within 25 miles of Watertown since 1950, across 3 events. 1,266 injuries have been reported across all events. 1953 was the deadliest year on record near Watertown.
The deadliest single event was an F4 on June 9, 1953, which caused 94 fatalities along a 34.9-mile track.
Notable Tornadoes Near Watertown
What the record shows near Watertown
The 1950s were the busiest decade near Watertown, with 12 of the 52 confirmed tornadoes within 25 miles; the 2020s have produced 9 so far. The Watertown record runs from the 1950s to today.
Of the tornadoes rated near Watertown, 40 reached EF0 or EF1 and 12 reached EF2 or stronger. The most intense on record near Watertown is rated EF4, of which 1 is logged.
Across the last 20 years Watertown has averaged 0.7 confirmed tornadoes a year within 25 miles, 13 in total. 2021 was the busiest of them with 3, and 12 of those years passed with none at all.