Waltham, MA Tornado History — 57 Tornadoes Since 1950
How many tornadoes has Waltham, MA had?
Waltham has had 57 tornadoes on record within 25 miles since 1950, including 4 strong to violent (EF3+) tornadoes.
When was the most recent tornado near Waltham?
The most recent tornado within 25 miles of Waltham was an EF0 on September 6, 2025.
When is tornado season in Waltham?
July is historically the peak month for tornadoes near Waltham, with 16 on record. April through June account for 15 of the 57 tornadoes on record near Waltham.
At a Glance
Recent Tornado Activity Near Waltham
The last 20 years of confirmed tornadoes within 25 miles — 15 total, averaging 0.8 per year over this window.
What storm spotters reported near Waltham
One local storm report has been filed within 25 miles of Waltham 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 Waltham 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 Waltham
96 fatalities have been recorded within 25 miles of Waltham since 1950, across 3 events. 1,266 injuries have been reported across all events. 1953 was the deadliest year on record near Waltham.
The deadliest single event was an F4 on June 9, 1953, which caused 94 fatalities along a 34.9-mile track.
Notable Tornadoes Near Waltham
What the record shows near Waltham
The 1950s were the busiest decade near Waltham, with 13 of the 57 confirmed tornadoes within 25 miles; the 2020s have produced 10 so far. The Waltham record runs from the 1950s to today.
Of the tornadoes rated near Waltham, 43 reached EF0 or EF1 and 14 reached EF2 or stronger. The most intense on record near Waltham is rated EF4, of which 1 is logged.
Across the last 20 years Waltham has averaged 0.8 confirmed tornadoes a year within 25 miles, 15 in total. 2021 was the busiest of them with 4, and 11 of those years passed with none at all.