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Wind in Merrimack County, New Hampshire
295 damaging wind events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Thunderstorm Wind, High Wind, Strong Wind.
NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. Storm records through 30 Jun 2026.
NCEI records 295 wind events in Merrimack County, New Hampshire, between 1950 and 2026, spread over 48 years.
July is the busiest month, with 100 of the recorded events. The last 20 years account for 156 events against 117 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 9.7% of the 3,037 wind events recorded in New Hampshire; its 31.6 per 100 square miles compares with 33.9 statewide.
NCEI attributes 2 deaths in the county to damaging wind.
47 wind reports with a measured or estimated speed reached the 58 mph severe threshold, and 2 reached hurricane force (74 mph).
Some winter weather and high wind events are recorded by NWS forecast zone rather than by county; zone-recorded events whose zone is named for the county are included and marked "Forecast zone" in the table.
Compared with New Hampshire
| Measure | Merrimack County | New Hampshire | US |
|---|---|---|---|
| Wind events since 1950 | 295 | 3,037 | 701,953 |
| Per 100 square miles | 31.6 | 33.9 | 19.9 |
| Per 10,000 residents | 19.0 | 21.9 | 21.1 |
| Deaths recorded | 2 | 18 | 2,166 |
| Busiest month | July | July | June |
By year
Seasonality
3Feb
9Mar
8Apr
2May
33Jun
58Jul
100Aug
33Sep
14Oct
16Nov
9Dec
10
Magnitude distribution
NWS wind thresholds
- under 58 mph
- below severe threshold
- 58–73 mph
- severe
- 74–95 mph
- hurricane-force
- 96 mph and over
- extreme
Wind speed converted from the knots NCEI records; estimated and measured gusts are combined. Events without a speed are not binned.
Recorded events
The 193 events kept for this page are the 120 most recent plus the 80 with the most damage, deaths or injuries out of 295. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 26 Jun 2026 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 26 Jun 2026 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 26 Jun 2026 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 26 Jun 2026 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 26 Jun 2026 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 18 Jun 2026 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 6 Sep 2025 | Thunderstorm Wind | 58 mph | $2K | — | — | — | County |
| 6 Sep 2025 | Thunderstorm Wind | 58 mph | $2K | — | — | — | County |
| 6 Sep 2025 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 20 Jul 2025 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 24 Jun 2025 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 19 Jun 2025 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 19 Jun 2025 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 6 Jun 2025 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 6 Jun 2025 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 15 Aug 2024 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 16 Jul 2024 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 16 Jul 2024 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 9 Jul 2024 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 9 Jul 2024 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 9 Jul 2024 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 9 Jul 2024 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 23 Jun 2024 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 23 Jun 2024 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 Jul 2023 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 21 Jul 2022 | Thunderstorm Wind | 60 mph | $10K | — | — | — | County |
| 21 Jul 2022 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 21 Jul 2022 | Thunderstorm Wind | 60 mph | $5K | — | — | — | County |
| 12 Jul 2022 | Thunderstorm Wind | 60 mph | $5K | — | — | — | County |
| 16 May 2022 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 16 May 2022 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 23 Jul 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 20 Jul 2021 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 30 Jun 2021 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 26 May 2021 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 26 May 2021 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 26 May 2021 | Thunderstorm Wind | 60 mph | — | — | — | — | County |
| 25 Aug 2020 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 24 Aug 2020 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 23 Aug 2020 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 13 Jul 2020 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 5 Jul 2020 | Thunderstorm Wind | 64 mph | — | — | — | — | County |
| 6 Jun 2020 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 15 May 2020 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 15 May 2020 | Thunderstorm Wind | 90 mph | — | — | — | — | County |
| 3 Aug 2018 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 3 Aug 2018 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 3 Aug 2018 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 3 Aug 2018 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Jul 2018 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Jul 2018 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Jul 2018 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Jul 2018 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 17 Jul 2018 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 17 Jul 2018 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 15 Jul 2018 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 10 Jul 2018 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 10 Jul 2018 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 10 Jul 2018 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 18 Jun 2018 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 18 Jun 2018 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 18 Jun 2018 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 18 Jun 2018 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 May 2018 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 May 2018 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 May 2018 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 May 2018 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 May 2018 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 May 2018 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 30 Oct 2017 | High Wind | 64 mph | — | — | — | — | Forecast zone |
| 5 Sep 2017 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 22 Aug 2017 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 22 Aug 2017 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 2 Aug 2017 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 19 Jun 2017 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 19 Jun 2017 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 19 Jun 2017 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 19 Jun 2017 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 31 May 2017 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 11 Sep 2016 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 23 Jul 2016 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 23 Jul 2016 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 23 Jul 2016 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 23 Jul 2016 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 23 Jul 2016 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 23 Jul 2016 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 23 Jul 2016 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 Aug 2015 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 Aug 2015 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 Aug 2015 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 4 Aug 2015 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 3 Aug 2015 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Jul 2015 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 19 Jul 2015 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 15 Jul 2014 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 3 Jul 2014 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 3 Jul 2014 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 3 Jul 2014 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 3 Jul 2014 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 3 Jul 2014 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 2 Jul 2014 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 2 Jul 2014 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 25 Jun 2014 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 24 Nov 2013 | High Wind | 58 mph | $5K | — | — | — | Forecast zone |
| 7 Oct 2013 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 11 Sep 2013 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 11 Sep 2013 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 11 Sep 2013 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 19 Jul 2013 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 19 Jul 2013 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 24 Jun 2013 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 17 Jun 2013 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 17 Jun 2013 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 2 Jun 2013 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 30 Oct 2012 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 30 Oct 2012 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 30 Oct 2012 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 30 Oct 2012 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 29 Oct 2012 | High Wind | 58 mph | $106K | — | — | 1 | Forecast zone |
| 8 Sep 2012 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 17 Feb 2006 | High Wind | 60 mph | $10K | — | — | — | Forecast zone |
| 14 Jul 2005 | Thunderstorm Wind | 58 mph | $10K | — | — | — | County |
| 14 Jul 2005 | Thunderstorm Wind | 58 mph | $10K | — | — | — | County |
| 23 Dec 2004 | Strong Wind | 40 mph | $1K | — | — | — | Forecast zone |
| 1 Dec 2004 | Strong Wind | 39 mph | $1K | — | — | — | Forecast zone |
| 28 Nov 2004 | Strong Wind | 48 mph | $1K | — | — | — | Forecast zone |
| 5 Nov 2004 | Strong Wind | 39 mph | $1K | — | — | — | Forecast zone |
| 3 Nov 2004 | Strong Wind | 53 mph | $1K | — | — | — | Forecast zone |
| 17 Aug 1999 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 28 Jun 1999 | Thunderstorm Wind | 71 mph | — | — | — | — | County |
| 7 Mar 1999 | Strong Wind | — | — | — | 1 | 1 | Forecast zone |
| 22 Dec 1998 | Strong Wind | — | — | — | — | — | Forecast zone |
| 1 Dec 1998 | Strong Wind | — | — | — | — | — | Forecast zone |
| 1 Oct 1998 | Strong Wind | — | — | — | — | — | Forecast zone |
| 25 Aug 1998 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 25 Aug 1998 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 31 May 1998 | Thunderstorm Wind | 63 mph | — | — | — | — | County |
| 29 May 1998 | Thunderstorm Wind | 63 mph | — | — | — | — | County |
| 29 May 1998 | Thunderstorm Wind | 63 mph | — | — | — | — | County |
| 13 Jan 1998 | Strong Wind | — | — | — | — | — | Forecast zone |
| 1 Nov 1997 | High Wind | 58 mph | — | — | — | — | Forecast zone |
| 6 Mar 1997 | High Wind | 69 mph | — | — | — | 1 | Forecast zone |
| 9 Nov 1996 | High Wind | 58 mph | — | — | — | — | Forecast zone |
| 14 Oct 1996 | High Wind | — | — | — | — | — | Forecast zone |
| 19 Jul 1996 | High Wind | — | — | — | — | — | Forecast zone |
| 16 Jul 1996 | Thunderstorm Wind | — | — | — | — | — | County |
| 8 Jul 1996 | Thunderstorm Wind | — | — | — | — | — | County |
| 8 Jul 1996 | Thunderstorm Wind | — | — | — | — | — | County |
| 8 Jul 1996 | Thunderstorm Wind | — | — | — | — | — | County |
| 8 Jul 1996 | Thunderstorm Wind | — | — | — | — | — | County |
| 8 Jul 1996 | Thunderstorm Wind | — | — | — | — | — | County |
| 8 Jul 1996 | Thunderstorm Wind | — | — | — | — | — | County |
| 14 Sep 1995 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 14 Sep 1995 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 15 Jul 1995 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 8 Jul 1995 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 21 Aug 1994 | Thunderstorm Wind | 0 mph | — | — | 1 | — | County |
| 26 Jul 1994 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 7 Jul 1994 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 1 Aug 1991 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 19 Jul 1991 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 19 Jul 1991 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 17 May 1991 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 18 Oct 1990 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 23 Jul 1990 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 7 Jul 1989 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 7 Jul 1989 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 14 Aug 1988 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 26 Jul 1988 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 19 Aug 1987 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 19 Aug 1987 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 29 Jun 1986 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 16 Jun 1986 | Thunderstorm Wind | 59 mph | — | — | — | — | County |
| 16 Jun 1986 | Thunderstorm Wind | 59 mph | — | — | — | — | County |
| 16 Jun 1986 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 16 Jun 1986 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 16 Jun 1986 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 10 Jul 1985 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 25 May 1984 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 21 Jul 1983 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 27 Jul 1976 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 27 Jul 1976 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 11 Jul 1976 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 9 Jul 1975 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 19 Jul 1972 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 1 Jul 1971 | Thunderstorm Wind | 58 mph | — | — | — | — | County |
| 8 Jun 1971 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 8 Jun 1971 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 8 Jun 1971 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 8 Jun 1971 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
| 25 Aug 1968 | Thunderstorm Wind | 71 mph | — | — | — | — | County |
| 20 May 1963 | Thunderstorm Wind | 79 mph | — | — | — | — | County |
| 31 May 1962 | Thunderstorm Wind | 0 mph | — | — | — | — | County |
Questions and answers
How many wind events has Merrimack County had?
295 events in the NCEI Storm Events record between 1950 and 2026. Reporting of damaging wind became far more complete after 1996, so early decades undercount.
When was the last recorded wind event in Merrimack County?
26 Jun 2026 (Thunderstorm Wind, 60 mph). Records reach NCEI about 120 days after the month ends.
What was the most damaging wind event recorded in Merrimack County?
The high wind of 29 Oct 2012, with property damage estimated by NCEI at $106K.
How does Merrimack County compare with New Hampshire for wind?
31.6 events per 100 square miles against 33.9 statewide; the county holds 295 of the state's 3,037 recorded events.
Provenance
NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026, public domain. County-recorded events plus zone-recorded events whose forecast zone is named for the county (marked "Forecast zone"). Population and area from the US Census Bureau (2021). Built 1 Oct 2026. See the methodology, the Wind hub and the county page.