How many tornadoes has Portsmouth, NH had?
Portsmouth has had 19 tornadoes on record within 25 miles since 1950, including 1 strong to violent (EF3+) tornado.
When was the most recent tornado near Portsmouth?
The most recent tornado within 25 miles of Portsmouth was an F1 on September 29, 2006.
When is tornado season in Portsmouth?
June is historically the peak month for tornadoes near Portsmouth, with 6 on record. April through June account for 9 of the 19 tornadoes on record near Portsmouth.
At a Glance
Tornadoes Since 1950
19
Within search radius
Violent (EF3+)
1
5.3% of total
Peak Month
June
6 on record
Per Year Avg
0.3
Across 76 years
Tornadoes by Decade
1950s
7
1960s
4
1970s
4
1980s
1
1990s
1
2000s
2
Tornadoes by Enhanced Fujita Rating
F0–F5 ratings (pre-2007) are grouped with their EF equivalents. The Enhanced Fujita scale replaced the original Fujita scale in February 2007.
EF0
3
EF1
6
EF2
9
EF3
1
Tornadoes by Month
Jan
0
Feb
0
Mar
0
Apr
0
May
3
Jun
6
Jul
2
Aug
4
Sep
1
Oct
2
Nov
1
Dec
0
Have any tornadoes near Portsmouth been fatal?
No fatalities are on record within 25 miles of Portsmouth from any of the 19 tornadoes since 1950, though 11 injuries have been reported, according to NOAA Storm Prediction Center records.
Notable Tornadoes Near Portsmouth
Costliest Tornado
F2 on June 22, 1981 — est. ~$2.8M (NOAA damage class, pre-1996 estimate).
Widest Tornado
F1 on September 29, 2006 — 200 yards wide.
Longest Path
F2 on August 21, 1951 — 9.3 mile track.
Most Recent
F1 on September 29, 2006.
What the record shows near Portsmouth
The 1950s were the busiest decade near Portsmouth, with 7 of the 19 confirmed tornadoes within 25 miles; the 2000s have produced 2 so far. The Portsmouth record runs from the 1950s to today.
Of the tornadoes rated near Portsmouth, 9 reached EF0 or EF1 and 10 reached EF2 or stronger. The most intense on record near Portsmouth is rated EF3, of which 1 is logged.
Frequently Asked Questions
How many tornadoes has Portsmouth, NH had?
Since 1950, 19 tornadoes have been recorded within 25 miles of Portsmouth. Data source: NOAA Storm Prediction Center.
When is tornado season in Portsmouth?
June is historically the peak month for tornadoes near Portsmouth, with 6 tornadoes on record. Tornadoes can occur any time of year, but spring months (April–June) generally see the highest activity across most of the central and southern United States.
When was the most recent tornado near Portsmouth?
The most recent tornado within 25 miles of Portsmouth was an F1 on September 29, 2006.
How do I get tornado warnings for Portsmouth?
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