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Tornadoes in Massachusetts

Massachusetts has recorded 192 tornadoes from 1950 through 2025, about 2.1 per year over the last 30 years. They killed 105 people and injured 1,526. July is the most active month.

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Map data: NWS, OpenFreeMap, OpenStreetMap

Tornadoes per year

97: 797700: 100101: 201202: 102104: 204205: 105106: 106107: 107111: 411412: 112113: 213214: 314315: 215216: 116117: 217218: 718719: 319320: 220221: 521523: 823824: 124125: 5255
Massachusetts tornadoes per year, 1996–2025
50s: 3950s3960s: 3560s3570s: 3370s3380s: 1680s1690s: 1490s1400s: 900s910s: 2510s2520s: 2120s21
Tornadoes per decade (the 2020s are partial)

When tornadoes happen in Massachusetts

Jan: 0JanFeb: 2Feb2Mar: 1Mar1Apr: 0AprMay: 15May15Jun: 28Jun28Jul: 64Jul64Aug: 45Aug45Sep: 19Sep19Oct: 10Oct10Nov: 6Nov6Dec: 2Dec2
Tornadoes by month, 1950–2025
EF0: 54EF054EF1: 96EF196EF2: 34EF234EF3: 6EF36EF4: 2EF42EF5: 0EF5
Tornadoes by (E)F rating

Ratings before February 2007 use the original Fujita (F) scale; later tornadoes use the Enhanced Fujita (EF) scale. How the EF scale works.

Deadliest tornadoes in Massachusetts

DateRatingCountyPath lengthWidthDeathsInjuries
June 9, 1953F4Worcester County34.9 mi900 yd941228
May 29, 1995F4Berkshire County11.5 mi300 yd324
June 1, 2011EF3Hampden County37.6 mi880 yd3200
August 10, 1979F2Worcester County9.7 mi30 yd22
October 3, 1970F3Worcester County35.4 mi60 yd10
August 9, 1972F1Norfolk County4.9 mi30 yd16
September 7, 1958F0Plymouth County0.1 mi10 yd11

Strongest tornadoes in Massachusetts

DateRatingCountyPath lengthWidthDeathsInjuries
June 9, 1953F4Worcester County34.9 mi900 yd941228
May 29, 1995F4Berkshire County11.5 mi300 yd324
June 1, 2011EF3Hampden County37.6 mi880 yd3200
October 3, 1970F3Worcester County35.4 mi60 yd10
June 9, 1953F3Worcester County28 mi667 yd017
June 22, 1981F3Worcester County7.1 mi167 yd03
September 13, 1971F3Hampshire County0.5 mi10 yd00
September 29, 1974F3Middlesex County0.1 mi33 yd01
August 10, 1979F2Worcester County9.7 mi30 yd22
August 9, 1972F2Worcester County9.7 mi10 yd01

Most recent tornadoes

DateRatingCountyPath lengthWidthDeathsInjuries
September 6, 2025EF0Middlesex County2.4 mi100 yd00
September 6, 2025EF0Worcester County0.6 mi150 yd00
September 6, 2025EF0Worcester County0.2 mi100 yd00
September 6, 2025EF0Worcester County0.1 mi100 yd00
September 6, 2025EF0Worcester County0.2 mi50 yd00
June 26, 2024EF1Bristol County0.6 mi50 yd00
September 13, 2023EF0Bristol County0.1 mi70 yd00
August 18, 2023EF1Norfolk County0.4 mi100 yd00
August 18, 2023EF0Norfolk County0.1 mi35 yd00
August 18, 2023EF1Bristol County7.6 mi80 yd00

Counties with the most tornadoes

CountyTornadoes since 1950Per 1,000 sq mi
Worcester County5289133024.5
Franklin County2696337625.2
Middlesex County2166491442.5
Hampden County1875559157.2
Berkshire County1644703344.1
Norfolk County1598106060.6
Essex County1473549695.7
Bristol County1256202531.6
Plymouth County1143232170
Hampshire County1049146110.1
Barnstable County852588832.5
Dukes County250291262.1
Suffolk County144655172.4
Nantucket County00

About this data

Tornado records come from the NOAA Storm Prediction Center database of confirmed tornadoes, 1950–2025. Tornadoes that crossed state lines are counted in the state where they began. Counts in the early decades are lower partly because many weak tornadoes went unreported before Doppler radar and storm spotter networks.