Storms near Merrimack County
The record holds 23 tropical cyclones whose tracks passed within 50 km of Merrimack County, New Hampshire between 1858 and 2011. The busiest month is September, with 12 of them. The strongest, measured where each came closest to the place, reached category 3 strength.
- 23storms within 50 km
- 1major (category 3 to 5) near here
- 5at category 1 strength or more
A storm counts once, however many times it came close. The category is the storm's strongest point within 50 km, which can be weaker than its peak elsewhere.
How strong were the storms near Merrimack County?
| Category near here | Storms | Share |
|---|---|---|
| Tropical depression | 0 | 0% |
| Tropical storm | 18 | 78% |
| Category 1 | 3 | 13% |
| Category 2 | 1 | 4% |
| Category 3 | 1 | 4% |
| Category 4 | 0 | 0% |
| Category 5 | 0 | 0% |
| Unknown intensity | 0 | 0% |
The agency behind most of the intensity figures here is the NOAA National Hurricane Center (HURDAT2, Atlantic).
Merrimack County storms over time
The 2010s only run to 2011, so that bar is for a shorter period. This place's record starts in 1858, and records before the satellite era (about the 1960s) are far less complete.
Show the numbers
| Period | Count |
|---|---|
| 1850s | 1 |
| 1860s | 4 |
| 1870s | 1 |
| 1890s | 4 |
| 1900s | 1 |
| 1920s | 1 |
| 1950s | 2 |
| 1960s | 4 |
| 1970s | 1 |
| 1980s | 1 |
| 1990s | 2 |
| 2010s | 1 |
Earlier decades hold fewer storms partly because they were harder to see. Before weather satellites (about the 1960s) many storms that stayed at sea went unrecorded, so compare decades with care.
Show the numbers
| Period | Count |
|---|---|
| Jan | 0 |
| Feb | 0 |
| Mar | 0 |
| Apr | 0 |
| May | 1 |
| Jun | 0 |
| Jul | 2 |
| Aug | 5 |
| Sep | 12 |
| Oct | 2 |
| Nov | 1 |
| Dec | 0 |
Strongest storms near Merrimack County
- Carol (1954)25 August 1954 to 1 September 1954, peak Category 3 (100 kt), 955 hPa
- Donna (1960)29 August 1960 to 14 September 1960, Category 2 (85 kt) near here, peak Category 4 (125 kt), 930 hPa
- Unnamed storm of September 1869 (North Atlantic)2 September 1869 to 9 September 1869, Category 1 (80 kt) near here, peak Category 3 (100 kt), 950 hPa
- Gloria (1985)16 September 1985 to 2 October 1985, Category 1 (75 kt) near here, peak Category 4 (125 kt), 920 hPa
- Unnamed storm of September 1858 (North Atlantic)11 September 1858 to 17 September 1858, Category 1 (70 kt) near here, peak Category 2 (90 kt), 979 hPa
Most recent storms near Merrimack County
- Irene (2011)21 August 2011 to 30 August 2011, Tropical storm (50 kt) near here, peak Category 3 (105 kt), 942 hPa
- Floyd (1999)7 September 1999 to 19 September 1999, Tropical storm (50 kt) near here, peak Category 4 (135 kt), 921 hPa
- Bertha (1996)5 July 1996 to 17 July 1996, Tropical storm (60 kt) near here, peak Category 3 (100 kt), 960 hPa
Many of these storms killed people and destroyed homes. The figures are the official record's, and this page says nothing about their human cost.
A storm that came near several counties counts in each one, so county counts add up to more than the state's.
Notable storms near Merrimack County
- Gloria (1985)16 September 1985 to 2 October 1985, peak Category 4 (125 kt), 920 hPa
- Carol (1954)25 August 1954 to 1 September 1954, peak Category 3 (100 kt), 955 hPa