NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Thornton, NH
Every tropical system within 75 miles since 1851 and every tornado within 25 miles since 1950.
28 tropical systems have passed within 75 miles of Thornton, New Hampshire since 1851, 2 of them at hurricane strength; the most recent was Isaias in 2020. Since 1950, 17 tornadoes have touched down within 25 miles, 1 of them rated EF3 or stronger.
- Hurricanes
- 2
- Tropical storms
- 26
- Tornadoes
- 17
- EF3 or stronger
- 1
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
no recorded deaths
Tropical storms and hurricanes near Thornton
| Year | Storm | Closest | Strength when closest | Peak |
|---|---|---|---|---|
| 2020 | IsaiasAug 5 | 71 mi | Tropical storm (51 mph) | Category 1 |
| 2011 | IreneAug 28 | 29 mi | Tropical storm (52 mph) | Category 3 |
| 1999 | FloydSep 17 | 67 mi | Tropical storm (52 mph) | Category 4 |
| 1985 | GloriaSep 27 | 17 mi | Tropical storm (71 mph) | Category 4 |
| 1979 | DavidSep 6 | 19 mi | Tropical storm (49 mph) | Category 5 |
| 1971 | DoriaAug 28 | 3 mi | Tropical storm (51 mph) | Tropical storm |
| 1968 | Unnamed 1968 stormSep 11 | 34 mi | Tropical storm (52 mph) | Tropical storm |
| 1961 | Unnamed 1961 stormSep 15 | 56 mi | Tropical storm (68 mph) | Tropical storm |
| 1960 | DonnaSep 13 | 52 mi | Tropical storm (69 mph) | Category 4 |
| 1960 | BrendaJul 31 | 35 mi | Tropical storm (45 mph) | Tropical storm |
| 1954 | CarolAug 31 | 18 mi | Category 1 (83 mph) | Category 3 |
| 1949 | Unnamed 1949 stormAug 29 | 24 mi | Tropical storm (52 mph) | Category 4 |
| 1934 | Unnamed 1934 stormSep 9 | 36 mi | Tropical storm (44 mph) | Category 2 |
| 1923 | Unnamed 1923 stormOct 19 | 2 mi | Tropical storm (44 mph) | Tropical storm |
| 1916 | Unnamed 1916 stormMay 17 | 42 mi | Tropical storm (53 mph) | Tropical storm |
| 1908 | Unnamed 1908 stormMay 31 | 63 mi | Tropical storm (40 mph) | Category 1 |
| 1899 | Unnamed 1899 stormNov 1 | 5 mi | Tropical storm (52 mph) | Category 2 |
| 1897 | Unnamed 1897 stormSep 24 | 67 mi | Tropical storm (40 mph) | Tropical storm |
| 1896 | Unnamed 1896 stormSep 11 | 73 mi | Tropical storm (54 mph) | Category 3 |
| 1894 | Unnamed 1894 stormOct 10 | 41 mi | Tropical storm (56 mph) | Category 3 |
| 1893 | Unnamed 1893 stormAug 29 | 16 mi | Tropical storm (59 mph) | Category 3 |
| 1893 | Unnamed 1893 stormAug 24 | 26 mi | Tropical storm (67 mph) | Category 3 |
| 1878 | Unnamed 1878 stormOct 24 | 72 mi | Tropical storm (58 mph) | Category 2 |
| 1874 | Unnamed 1874 stormSep 30 | 50 mi | Tropical storm (69 mph) | Category 1 |
| 1869 | Unnamed 1869 stormSep 9 | 51 mi | Category 1 (85 mph) | Category 3 |
| 1861 | Unnamed 1861 stormNov 3 | 69 mi | Tropical storm (58 mph) | Category 1 |
| 1861 | Unnamed 1861 stormSep 28 | 72 mi | Tropical storm (58 mph) | Category 1 |
| 1858 | Unnamed 1858 stormSep 16 | 40 mi | Tropical storm (68 mph) | Category 2 |
Strength is the sustained wind on the track at the closest point, which is not the wind felt in Thornton: a hurricane's worst winds sit within a few dozen miles of its centre, and inland cities are usually past that.
Tornadoes within 25 miles of Thornton
By decade
- 2010s5
- 2000s1
- 1990s1
- 1970s6
- 1960s4(1 EF3+)
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Aug 25, 1969 | F3 | 4 mi | 5.7 mi | 0 / 0 |
| Aug 11, 1966 | F2 | 18 mi | 9 mi | 0 / 0 |
| Jul 23, 1995 | F1 | 19 mi | 0.5 mi | 0 / 0 |
| Jul 23, 1978 | F1 | 23 mi | 0.2 mi | 0 / 0 |
| Aug 15, 1976 | F1 | 18 mi | 0.1 mi | 0 / 5 |
| Aug 9, 1972 | F1 | 21 mi | 0.1 mi | 0 / 0 |
| Jul 28, 1970 | F1 | 21 mi | 0.1 mi | 0 / 0 |
| Jul 14, 1963 | F1 | 15 mi | 0.1 mi | 0 / 0 |
| Jun 18, 2018 | EF0 | 12 mi | 0.2 mi | 0 / 0 |
| Jun 18, 2018 | EF0 | 16 mi | 9.45 mi | 0 / 0 |
| Jul 24, 2014 | EF0 | 23 mi | 0.02 mi | 0 / 0 |
| Jul 17, 2012 | EF0 | 21 mi | 0.46 mi | 0 / 0 |
The strongest 12 of 17, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
How to read this page
A storm is listed when the centre of its track passed within 75 miles of Thornton while it was at least a tropical storm, which is the reach of damaging wind and rain for a typical hurricane. Being on the list does not mean the city took a direct hit; the "closest" column says how near the centre came. Tornadoes are counted when any part of the path came within 25 miles.
Tornado records before the 1990s are thinner, because weak tornadoes in open country often went unreported before Doppler radar and mobile phones. A rise in the decade counts is mostly better reporting, not a change in the weather.
Tracks come from the National Hurricane Center's HURDAT2 database, tornadoes from the Storm Prediction Center's database. Both are the official federal records and both are revised as old storms are re-analysed.