Grafton, MA Tornado History — 64 Tornadoes Since 1950
How many tornadoes has Grafton, MA had?
Grafton has had 64 tornadoes on record within 25 miles since 1950, including 4 strong to violent (EF3+) tornadoes.
When was the most recent tornado near Grafton?
The most recent tornado within 25 miles of Grafton was an EF0 on September 6, 2025.
When is tornado season in Grafton?
August is historically the peak month for tornadoes near Grafton, with 19 on record. April through June account for 16 of the 64 tornadoes on record near Grafton.
At a Glance
Recent Tornado Activity Near Grafton
The last 20 years of confirmed tornadoes within 25 miles — 29 total, averaging 1.4 per year over this window.
What storm spotters reported near Grafton
2 local storm reports have been filed within 25 miles of Grafton and since confirmed into the NOAA archive, the earliest on September 6, 2025 and the most recent on September 6, 2025. They are already counted in the Grafton totals above; quoted below is the narrative each 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)
EF1 TORNADO BRIEFLY TOUCHED DOWN OVER WILLOW BROOK RD IN HOLDEN CAUSING SIGNIFICANT TREE DAMAGE. (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 Grafton
101 fatalities have been recorded within 25 miles of Grafton since 1950, across 5 events. 1,462 injuries have been reported across all events. 1953 was the deadliest year on record near Grafton.
The deadliest single event was an F4 on June 9, 1953, which caused 94 fatalities along a 34.9-mile track.
Notable Tornadoes Near Grafton
What the record shows near Grafton
The 2020s are the busiest decade on record so far near Grafton, with 17 of the 64 confirmed tornadoes within 25 miles. The Grafton record runs from the 1950s to today.
Of the tornadoes rated near Grafton, 52 reached EF0 or EF1 and 12 reached EF2 or stronger. The most intense on record near Grafton is rated EF4, of which 1 is logged.
Across the last 20 years Grafton has averaged 1.4 confirmed tornadoes a year within 25 miles, 29 in total. 2018 was the busiest of them with 5, and 9 of those years passed with none at all.