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Tornado History
Hillsborough Tornado History
This county-level tornado history page focuses on Hillsborough, New Hampshire. The records below identify 17 tornadoes from 1956 through 1998, including a highest listed rating of F3 (Severe damage). NOAA damage estimates in this group total at least $1.4M, with 0 deaths and 1 injuries recorded across the listed events.
Key Tornado Statistics
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Check any addressKey Tornado Facts for Hillsborough, New Hampshire
Top local patterns from the historical tornado records in this group.
Average 0.4 tornadoes per year (0.0/yr in last decade)
July is the peak tornado month with 8 recorded events
Deadliest tornado: Unknown in Hillsborough, New Hampshire with 0 deaths
1963 was the most active year with 3 tornadoes
The 1960s had the most tornado activity (9 events)
Longest tornado: 10.1 miles in Hillsborough, New Hampshire
Widest tornado: 400.0 yards in Hillsborough, New Hampshire
Most tornadoes in one day: 2 on Jul 5, 1984
Monthly Distribution
Shows tornado frequency across months of the year, highlighting seasonal patterns and peak tornado periods.
Summary: In Hillsborough, New Hampshire, July is the most active month with 8 tornadoes.
Annual Tornado Trend
Shows year-by-year tornado counts, making active years and quiet stretches easier to spot.
Summary: 1963 was the most active year with 3 recorded tornadoes.
Property Damage Trends
Visualizes reported property damage over time. Bars use a log-like scale so very large damage years do not flatten the rest of the chart.
Summary: The highest reported property damage year in this group is 1963 with at least $502K in NOAA-listed property damage.
Historical Track Sketch
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.
| Date | Rating | Area | Length | Width | Deaths | Injuries | Min. property damage |
|---|---|---|---|---|---|---|---|
| August 20, 1968 | F3 | Hillsborough, New Hampshire | 1 mi | 27 yd | 0 | 1 | $25K |
| June 9, 1963 | F2 | Hillsborough, New Hampshire | 10 mi | 77 yd | 0 | 0 | $250K |
| July 3, 1997 | F2 | Hillsborough, New Hampshire | 2 mi | 250 yd | 0 | 0 | $250K |
| May 31, 1998 | F2 | Hillsborough, New Hampshire | 0.5 mi | 85 yd | 0 | 0 | $30K |
| July 17, 1968 | F2 | Hillsborough, New Hampshire | 0.1 mi | 17 yd | 0 | 0 | $25K |
| July 2, 1961 | F2 | Hillsborough, New Hampshire | 2 mi | 17 yd | 0 | 0 | $2K |
| May 9, 1963 | F1 | Hillsborough, New Hampshire | 10.1 mi | 20 yd | 0 | 0 | $250K |
| July 5, 1984 | F1 | Hillsborough, New Hampshire | 5 mi | 20 yd | 0 | 0 | $250K |
| June 16, 1986 | F1 | Hillsborough, New Hampshire | 2 mi | 30 yd | 0 | 0 | $250K |
| August 28, 1965 | F1 | Hillsborough, New Hampshire | 0.3 mi | 40 yd | 0 | 0 | $25K |
| July 5, 1984 | F1 | Hillsborough, New Hampshire | 0 mi | 3 yd | 0 | 0 | $25K |
| July 21, 1961 | F1 | Hillsborough, New Hampshire | 2 mi | 17 yd | 0 | 0 | $2K |
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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.