Thunderstorm Wind, Hillsborough
- When
- August 18, 2:20 PM CST
- Where
- Hillsborough County
- Coordinates
- 42.830, -71.630
Hail and Damaging Winds in New Hampshire, August 18, 1991
4 thunderstorm wind, 1 hail, as filed by the National Weather Service.
Where it happened
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 3
- Injuries
- 11
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 5
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
Event by event
4 thunderstorm wind, 1 hail. Local standard time, as filed.
Thunderstorm Wind, Rockingham
- When
- August 18, 2:35 PM CST
- Where
- Rockingham County
- Deaths
- 3 direct, 0 indirect
- Injuries
- 11 direct, 0 indirect
- Coordinates
- 43.020, -70.930
Thunderstorm Wind, Hillsborough
- When
- August 18, 2:37 PM CST
- Where
- Hillsborough County
- Measured
- 58 kt (67 mph)
- Coordinates
- 42.750, -71.450
Thunderstorm Wind, Rockingham
- When
- August 18, 2:45 PM CST
- Where
- Rockingham County
- Coordinates
- 43.070, -70.730
Hail, Rockingham
- When
- August 18, 2:55 PM CST
- Where
- Rockingham County
- Measured
- 0.75 in hail
- Coordinates
- 42.870, -71.370
What these are
- Thunderstorm Wind
- Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornadoes in North Carolina, August 18, 1991
- Damaging Winds in Illinois, August 18, 1991
- Hail and Damaging Winds in New York, August 18, 1991
- Hail and Damaging Winds in Connecticut, August 18, 1991
- Damaging Winds in Massachusetts, August 18, 1991
- Hail and Damaging Winds in Oregon, August 18, 1991
- Damaging Wind in Ohio, August 18, 1991
- Damaging Wind in Texas, August 18, 1991
More
Every storm in New Hampshire in 1991Every state in 1991This day in weather historyWarnings in New Hampshire, August 1991
Sources
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 10082575, 10082576, 10082577, 10082578, 10082579.