Tornado History
Hillsborough Tornado History
This county-level tornado history page focuses on Hillsborough, New Hampshire. The records below identify 19 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.
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Key Tornado Statistics
Key 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 9 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 (10 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 Aug 20, 1968
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 9 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
This map covers the wider location—not your exact property.Measure the closest recorded track to a street address in or near Hillsborough, New Hampshire.
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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 |
| August 20, 1968 | F1 | Hillsborough, New Hampshire | 2.5 mi | 17 yd | 0 | 0 | $25K |
| July 5, 1984 | F1 | Hillsborough, New Hampshire | 0 mi | 3 yd | 0 | 0 | $25K |
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Source And Limits
Data sourced from NOAA Storm Prediction Center and the NCEI Storm Events Database. TornadoTrace summarizes reported weather events for screening and research; it is not a damage assessment, inspection, or insurance determination. Coordinates and records can be approximate, incomplete, revised, or missing. No warranty of completeness or accuracy.