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Grafton County, New Hampshire
Tornadoes, hail, floods and severe storms recorded here between 1957 and 2026, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.
14
Tornado reports
132
Hail reports
218
Floods since 1996
785
All events
3
Deaths
$46.4M
Property damage
Tornado paths in Grafton County
The part of each tornado’s path NOAA recorded in this county, 14 in all. Zoom in and the paths widen to their surveyed width.
EF0EF1EF2EF3EF4EF5Unrated
Year by year
All storm eventsTornadoes
NOAA's storm database records tornadoes back to 1950 and hail and thunderstorm wind back to 1955, but floods only from 1996 on. Older floods are missing here. For those, the U.S. Geological Survey's stream gauge records and flood reports are the place to look.
Most significant events
The strongest tornadoes, deadliest events and biggest damage here, up to 50.
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…
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…
Thunderstorms produced 2 to 5 inches of rain in Orford washing out portions of Route 25A and numerous roads along the Connecticut River.
Two to three inches of rain fell in a short period of time in Lyme causing stream flooding and road washouts.
Heavy rain from slow moving thunderstorms produced flash flooding in Lebanon.
Heavy rain from Tropical Storm Irene caused serious flash flooding in Lincoln.
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.
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.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow winds downed a large tree down across Moss Flower Rd, in Bath.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow winds downed wires, blocking Old North Groton Road in Rumney, NH.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow winds downed trees and wires blocking West Bath Rd in the area of Pettyboro Rd. in Bath.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm wind gusts downed wires and trees on NH-10, road was closed.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm wind gusts downed two trees on Interstate 93 north, blocking several lanes.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm wind gusts downed multiple trees down across the village of West Rumney.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm wind gusts downed two large trees partially blocking NH Hwy 25.
Flood Flood
On the afternoon of May 15, 2026, minor river flooding occurred along the Pemigewasset River at Plymouth, New Hampshire, driven by basin-wide rainfall averages of 2.75 inches across the Pemigewasset Basin. Water levels rose quickly during the morning, reaching the 13.0-foot flood…
Hail Hail
A severe thunderstorm dropped hail the size of golf balls in North Haverhill on Route 10.
Flood Flood
The Pemigewasset River at Woodstock reached minor flood conditions on the morning of March 17. Numerous campgrounds flooded. The river reached 10.0 ft, one foot above flood stage.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm wind gusts downed three trees on North Ashland road in Plymouth. Largest was about 10 inches.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm wind gusts downed a tree down on wires along NH-175 in Ashland.
Hail Hail
A severe thunderstorm dropped hail the size of quarters on the Kancamagus Highway. Hail fell for about 7 minutes.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow winds downed multiple trees with one falling on a car along Danial Webster Highway.
Hail Hail
A severe thunderstorm dropped hail the size of golf balls in South Alexandria. Minor damage to vehicle reported.
Hail Hail
A severe thunderstorm dropped hail the size of half dollars on Main Street in Bristol.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow winds downed trees down along Bristol Hill Rd. near Plumer Hill Rd. in Bristol.
Hail Hail
A severe thunderstorm dropped hail the size of ping pong balls in West Lebanon.
Hail Hail
A severe thunderstorm dropped hail the size of half dollars on Rt. 4 in Enfield.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow wind gusts downed multiple trees blocking Butternut Ln. in Lebanon.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow wind gusts downed trees and branches on Pillsbury Street in Enfield.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm outflow wind gusts downed multiple trees on Cardigan Mountain Rd. between Reagan and Eastman Rd. in Canaan.
Hail Hail
A severe thunderstorm dropped hail the size of ping pong ball balls in Bristol.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm wind gusts downed a tree near State Route NH-116 and Pinnacle Rd.
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.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm wind gusts downed a few large trees on NH Highway 175 near Sugarplum Ln.
Thunderstorm Wind Thunderstorm Wind
Severe thunderstorm wind gusts downed numerous large trees and snapped one on the east side of State Route 10.
Flash Flood Flash Flood
Heavy rainfall caused significant washouts on NH-25C in Warren.
Flash Flood Flash Flood
Significant flooding along the Oliverian Brook caused a washout on NH-25 at Jeffers Hill Road in Piermont.
Flash Flood Flash Flood
The North Branch of Oliverian Brook caused a washout on NH 25 at Lime Kiln Road in Benton.
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.
Flash Flood Flash Flood
Gale Chandler Road in Landaff was down to a one lane due to a washout.
Flash Flood Flash Flood
In Landaff, Mill Brook came out of banks and flooded Brook Lane which caused a partial road washout.
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…
Flash Flood Flash Flood
Baker Brook came out of banks and flooded Brook Road in Littleton.
Flash Flood Flash Flood
Washout on Route 135 at Grange Hall Road in Lisbon from unnamed tributary.
Flash Flood Flash Flood
Ogontz Brook flooded portions of Lyman Road in Lyman near Mountain Meadows Road to Cold Plains Road, all lanes.
Flash Flood Flash Flood
Bridge washed out over Carter Brook on NH 135 in Lisbon.
Flash Flood Flash Flood
Washouts on Route 135 at Coppermine Road between Monroe and Lisbon.
Flash Flood Flash Flood
Bill Little Brook overflowed onto Monroe Road in Littleton caused a severe washout.
Events by year, as a table
| Year | Events | Tornadoes |
|---|---|---|
| 2026 | 10 | 0 |
| 2025 | 12 | 0 |
| 2024 | 36 | 1 |
| 2023 | 28 | 0 |
| 2022 | 27 | 0 |
| 2021 | 23 | 0 |
| 2020 | 21 | 0 |
| 2019 | 12 | 0 |
| 2018 | 17 | 2 |
| 2017 | 58 | 0 |
| 2016 | 15 | 0 |
| 2015 | 34 | 0 |
| 2014 | 33 | 0 |
| 2013 | 36 | 0 |
| 2012 | 44 | 1 |
| 2011 | 64 | 1 |
| 2010 | 33 | 0 |
| 2009 | 16 | 0 |
| 2008 | 37 | 0 |
| 2007 | 26 | 0 |
| 2006 | 45 | 0 |
| 2005 | 10 | 0 |
| 2004 | 16 | 0 |
| 2003 | 4 | 0 |
| 2002 | 11 | 0 |
| 2001 | 7 | 0 |
| 2000 | 5 | 0 |
| 1999 | 12 | 1 |
| 1998 | 10 | 0 |
| 1997 | 4 | 0 |
| 1996 | 5 | 0 |
| 1995 | 1 | 0 |
| 1994 | 5 | 0 |
| 1993 | 4 | 0 |
| 1992 | 3 | 0 |
| 1991 | 2 | 0 |
| 1990 | 5 | 0 |
| 1988 | 2 | 0 |
| 1987 | 1 | 0 |
| 1986 | 7 | 0 |
| 1985 | 3 | 0 |
| 1984 | 1 | 0 |
| 1983 | 7 | 0 |
| 1981 | 1 | 0 |
| 1979 | 2 | 0 |
| 1978 | 1 | 0 |
| 1977 | 5 | 0 |
| 1976 | 2 | 0 |
| 1975 | 1 | 0 |
| 1973 | 4 | 2 |
| 1972 | 2 | 2 |
| 1969 | 2 | 1 |
| 1968 | 1 | 0 |
| 1966 | 3 | 1 |
| 1964 | 2 | 1 |
| 1963 | 2 | 1 |
| 1962 | 3 | 0 |
| 1961 | 1 | 0 |
| 1957 | 1 | 0 |
Search your address
See every tornado that passed within 25 miles of a place in Grafton County, measured to its path.
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