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Grafton storm history

Storm events recorded in Grafton, New Hampshire between 1950 and 2025.

774
Total events
14
Tornadoes
131
Hail
216
Floods
3
Deaths
$46.4M
Property damage

Most significant events

Strongest tornadoes, deadliest events, and biggest damage in this county. Up to 50 shown.

October 30, 2012 · Grafton, New Hampshire
Debris Flow Debris Flow1 death
A man was standing 5 feet from the edge of a 10-15 ft high embankment at a building site located on the steep slope of a mountain. Heavy rains from Sandy caused the embankment to collapsed causing a mudslide. The victim was caught in the mudslide and was washed into a ravine alon…
June 27, 1998 · Grafton, New Hampshire
Flash Flood Flash Flood1 death, 1 injury, $1.5M damage
July 13, 1996 · Grafton, New Hampshire
Flash Flood Flash Flood1 death
July 11, 2019 · Grafton, New Hampshire
Flash Flood Flash Flood$2.9M damage
Slow moving thunderstorms produced 4 to 7 inches of rain which fell in less than 6 hours, causing serious flash flooding. Many roads were flooded and destroyed. Several homes were also flooded and damaged. Groton and Orange New Hampshire were the most seriously affected. In Groto…
July 1, 2017 · Grafton, New Hampshire
Flash Flood Flash Flood$4.0M damage
Thunderstorms produced 2 to 5 inches of rain in Orford washing out portions of Route 25A and numerous roads along the Connecticut River.
July 1, 2017 · Grafton, New Hampshire
Flash Flood Flash Flood$6.0M damage
Two to three inches of rain fell in a short period of time in Lyme causing stream flooding and road washouts.
July 2, 2013 · Grafton, New Hampshire
Flash Flood Flash Flood$6.5M damage
Heavy rain from slow moving thunderstorms produced flash flooding in Lebanon.
August 28, 2011 · Grafton, New Hampshire
Flash Flood Flash Flood$3.0M damage
Heavy rain from Tropical Storm Irene caused serious flash flooding in Lincoln.
August 28, 2011 · Grafton, New Hampshire
Flood Flood$3.0M damage
Heavy rain from Tropical Storm Irene caused flooding on the Connecticut River at West Lebanon (flood stage 18.0 ft), which crested at 29.6 ft.
August 28, 2011 · Grafton, New Hampshire
Flood Flood$3.0M damage
Heavy rain from Tropical Storm Irene caused serious flooding on the Pemigewasset River at Plymouth (flood stage 13.0 ft), which crested at 21.7 ft.
September 6, 2025 · Grafton, New Hampshire
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm wind gusts downed three trees on North Ashland road in Plymouth. Largest was about 10 inches.
September 6, 2025 · Grafton, New Hampshire
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm wind gusts downed a tree down on wires along NH-175 in Ashland.
July 3, 2025 · Grafton, New Hampshire
Hail Hail
A severe thunderstorm dropped hail the size of quarters on the Kancamagus Highway. Hail fell for about 7 minutes.
July 3, 2025 · Grafton, New Hampshire
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow winds downed multiple trees with one falling on a car along Danial Webster Highway.
June 19, 2025 · Grafton, New Hampshire
Hail Hail
A severe thunderstorm dropped hail the size of golf balls in South Alexandria. Minor damage to vehicle reported.
June 19, 2025 · Grafton, New Hampshire
Hail Hail
A severe thunderstorm dropped hail the size of half dollars on Main Street in Bristol.
June 19, 2025 · Grafton, New Hampshire
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow winds downed trees down along Bristol Hill Rd. near Plumer Hill Rd. in Bristol.
May 17, 2025 · Grafton, New Hampshire
Hail Hail
A severe thunderstorm dropped hail the size of ping pong balls in West Lebanon.
May 17, 2025 · Grafton, New Hampshire
Hail Hail
A severe thunderstorm dropped hail the size of half dollars on Rt. 4 in Enfield.
May 17, 2025 · Grafton, New Hampshire
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow wind gusts downed multiple trees blocking Butternut Ln. in Lebanon.
May 17, 2025 · Grafton, New Hampshire
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow wind gusts downed trees and branches on Pillsbury Street in Enfield.
May 17, 2025 · Grafton, New Hampshire
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow wind gusts downed multiple trees on Cardigan Mountain Rd. between Reagan and Eastman Rd. in Canaan.
August 26, 2024 · Grafton, New Hampshire
Hail Hail
A severe thunderstorm dropped hail the size of ping pong ball balls in Bristol.
August 4, 2024 · Grafton, New Hampshire
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm wind gusts downed a tree near State Route NH-116 and Pinnacle Rd.
August 4, 2024 · Grafton, New Hampshire
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm wind gusts downed a large tree that fell on a garage on Pearl Lake Rd. Other reports of trees down across South Lisbon.
August 4, 2024 · Grafton, New Hampshire
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm wind gusts downed a few large trees on NH Highway 175 near Sugarplum Ln.
August 4, 2024 · Grafton, New Hampshire
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm wind gusts downed numerous large trees and snapped one on the east side of State Route 10.
July 31, 2024 · Grafton, New Hampshire
Flash Flood Flash Flood
Heavy rainfall caused significant washouts on NH-25C in Warren.
July 31, 2024 · Grafton, New Hampshire
Flash Flood Flash Flood
Significant flooding along the Oliverian Brook caused a washout on NH-25 at Jeffers Hill Road in Piermont.
July 31, 2024 · Grafton, New Hampshire
Flash Flood Flash Flood
The North Branch of Oliverian Brook caused a washout on NH 25 at Lime Kiln Road in Benton.
July 31, 2024 · Grafton, New Hampshire
Flash Flood Flash Flood
Oliverian Brook rose rapidly on the evening of the 31st following heavy rainfall. Floodwaters surrounded a home on Gheradi Road near Mt. Moosilauke Highway in Haverhill, requiring at least one swift water rescue.
July 30, 2024 · Grafton, New Hampshire
Flash Flood Flash Flood
Gale Chandler Road in Landaff was down to a one lane due to a washout.
July 30, 2024 · Grafton, New Hampshire
Flash Flood Flash Flood
In Landaff, Mill Brook came out of banks and flooded Brook Lane which caused a partial road washout.
July 16, 2024 · Grafton, New Hampshire
Tornado EF1 Tornado
NWS Storm Survey Team confirmed and EF1 tornado touched down in Lyme, NH on the evening of July 16th. The tornado first touched down near Post Pond, downing numerous trees along the western shoreline. Overall path width was narrow at first, approximately 25 yards. The tornado tra…
July 10, 2024 · Grafton, New Hampshire
Flash Flood Flash Flood
Baker Brook came out of banks and flooded Brook Road in Littleton.
July 10, 2024 · Grafton, New Hampshire
Flash Flood Flash Flood
Washout on Route 135 at Grange Hall Road in Lisbon from unnamed tributary.
July 10, 2024 · Grafton, New Hampshire
Flash Flood Flash Flood
Ogontz Brook flooded portions of Lyman Road in Lyman near Mountain Meadows Road to Cold Plains Road, all lanes.
July 10, 2024 · Grafton, New Hampshire
Flash Flood Flash Flood
Bridge washed out over Carter Brook on NH 135 in Lisbon.
July 10, 2024 · Grafton, New Hampshire
Flash Flood Flash Flood
Washouts on Route 135 at Coppermine Road between Monroe and Lisbon.
July 10, 2024 · Grafton, New Hampshire
Flash Flood Flash Flood
Bill Little Brook overflowed onto Monroe Road in Littleton caused a severe washout.
July 10, 2024 · Grafton, New Hampshire
Flash Flood Flash Flood
Washouts on Broomstick Hill Road resulting in a motor vehicle rescue.
July 10, 2024 · Grafton, New Hampshire
Flash Flood Flash Flood
Closure of NH-135 between NH-18 and Stanton Road between Littleton and Monroe due to flooding and washouts.
July 10, 2024 · Grafton, New Hampshire
Flash Flood Flash Flood
People stranded at shopping centers off Meadow Street in Littleton, requiring water rescues.
July 10, 2024 · Grafton, New Hampshire
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow wind gusts downed wires across a road in Littleton.
July 10, 2024 · Grafton, New Hampshire
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow wind gusts downed numerous trees on West Main St. north of Dells Road.
July 6, 2024 · Grafton, New Hampshire
Flash Flood Flash Flood
Washout on Walker Hill Road between Presby and Nihan Roads after the Whipple Brook came out of banks in Sugar Hill.
June 30, 2024 · Grafton, New Hampshire
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow winds downed a few trees on Rub Hill Rd. on the east side of Woodsville.
June 30, 2024 · Grafton, New Hampshire
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow winds downed multiple tree on Railroad St. in Bath.
June 30, 2024 · Grafton, New Hampshire
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow winds downed and snapped 15 trees in Bath, NH.
June 30, 2024 · Grafton, New Hampshire
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow winds downed tree and large branches on the trailhead and golf course on the south end of Franconia.

Events by year

YearEventsTornadoes
2025120
2024361
2023280
2022270
2021230
2020210
2019120
2018172
2017580
2016150
2015340
2014330
2013360
2012441
2011641
2010330
2009160
2008370
2007260
2006450
2005100
2004160
200340
2002110
200170
200050
1999121
1998100
199730
199650
199510
199450
199340
199230
199120
199050
198820
198710
198670
198530
198410
198370
198110
197920
197810
197750
197620
197510
197342
197222
196921
196810
196631
196421
196321
196230
196110
195710