Tornado History

Grafton Tornado History

This county-level tornado history page focuses on Grafton, New Hampshire. The records below identify 12 tornadoes from 1963 through 2024, including a highest listed rating of F2 (Considerable damage). NOAA damage estimates in this group total at least $382K, with 0 deaths and 0 injuries recorded across the listed events.

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12recorded tornadoes
F2 (Considerable damage)highest rating
$382Kminimum property damage
July 16, 2024latest tornado
9.45 milongest listed path
350 ydwidest listed path

Historical Track Sketch

F2 August 11, 19661966F2 May 11, 19731973EF1 July 16, 20242024F1 July 14, 19631963F1 August 13, 19991999EF1 August 21, 20112011F0 June 27, 19641964F0 June 11, 19731973EF0 July 17, 20122012EF0 June 18, 20182018EF0 June 18, 20182018Unknown August 25, 19691969© OpenStreetMap contributors

Rating Breakdown

  • F2 (Considerable damage)2
  • F1 (Moderate damage)2
  • EF1 (Moderate damage)2
  • F0 (Light damage)2
  • EF0 (Light damage)3
  • Unknown rating1

Most Active Years

  • 19732
  • 20182
  • 19631
  • 19641
  • 19661
  • 19691
  • 19991
  • 20111

Notable Tornado Records

The table highlights the strongest and most damaging records in this page's local dataset. Damage totals are NOAA-reported minimum estimates where available.

DateRatingAreaLengthWidthDeathsInjuriesMin. property damage
August 11, 1966F2Grafton, New Hampshire9 mi100 yd00$250K
May 11, 1973F2Grafton, New Hampshire0.5 mi150 yd00N/A
July 16, 2024EF1Grafton, New Hampshire1.8 mi250 yd00$80K
July 14, 1963F1Grafton, New Hampshire0.1 mi83 yd00$2K
August 13, 1999F1Grafton, New Hampshire1 mi250 yd00N/A
August 21, 2011EF1Grafton, New Hampshire2.69 mi350 yd00N/A
June 27, 1964F0Grafton, New Hampshire0.5 mi17 yd00$25K
June 11, 1973F0Grafton, New Hampshire0 mi33 yd00N/A
July 17, 2012EF0Grafton, New Hampshire0.46 mi30 yd00N/A
June 18, 2018EF0Grafton, New Hampshire9.45 mi25 yd00N/A
June 18, 2018EF0Grafton, New Hampshire0.2 mi20 yd00N/A
August 25, 1969UnknownGrafton, New Hampshire5.7 mi17 yd00$25K

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Source And Limits

Data source: NOAA/NCEI. TornadoTrace summarizes historical records for screening and research. Coordinates, damage estimates, narratives, and event details can be approximate, incomplete, revised, or missing. Do not use this page as legal, insurance, engineering, real estate, emergency management, or safety advice.