US hurricane-landfall climatology (state x month, 1851-2025)
State x month panel of tropical-cyclone landfall climatology for the 18 US Atlantic/Gulf-coast states, 1851-2025 (175 seasons), derived from NOAA's HURDAT2 Atlantic best-track file. Each row carries landfall, hurricane (>=64 kt), and major-hurricane (>=96 kt) counts, the strongest landfall wind and Saffir-Simpson category, the month's share of the state's historical landfalls, state totals, ranks, average return periods in years, a documented 0-100 hurricane-exposure score with ranks and quartile tiers, the state's peak-season month window (smallest window covering >=50% of its landfalls), and the earliest/latest landfall dates in the cell. Landfalls are assigned to states by nearest-coastline-segment with bounding-box plausibility gates (foreign landfalls excluded), deduplicated to one row per storm per state. Validated against NHC TPC-4: 250/273 distinct hurricane-landfalling storms 1851-2004 (91.6%), identical state ranking and seasonal shape; per-state counts run slightly below TPC-4 (intensity-classification and border differences, documented in the connector). Join on (month, state_code) for seasonal preparedness-demand planning, churn-risk windows, and territory risk scoring. Climatology, not a forecast.
Les titres et les descriptions proviennent des sources de données, en anglais.
- Lignes
- 216
- Colonnes
- 28
- Cadence de la source
- Annuelle
- Dernière actualisation
- 1 oct. 2026
- Thème
- climate
| Colonne | Type | Description |
|---|---|---|
| month | integer | Calendar month, 1-12 (the join key together with state_code). |
| month_name | string | English month name. |
| state_code | string | USPS 2-letter state code. |
| state_name | string | State name. |
| country_code | string | ISO alpha-3 country code (USA). |
| n_landfalls | integer | Deduped tropical-cyclone landfall events in this state and month, 1851-2025 (one per storm per state, max-wind record). |
| n_hurricanes | integer | Of those, landfalls at hurricane strength (>=64 kt). |
| n_major_hurricanes | integer | Of those, landfalls at major-hurricane strength (>=96 kt). |
| max_landfall_wind_kt | float | Maximum sustained wind (knots) among the cell's landfalls; null when the cell has none. (unit: knots) |
| strongest_category | string | Saffir-Simpson category of max_landfall_wind_kt (Tropical Depression / Tropical Storm / Category 1-5); null when none. |
| month_share_of_state_pct | float | 100 * n_landfalls / state_landfalls_total: the month's share of the state's historical landfalls. (unit: percent) |
| state_landfalls_total | integer | Total deduped landfalls for the state, 1851-2025. |
| state_hurricanes_total | integer | Total hurricane-strength landfalls for the state. |
| state_major_total | integer | Total major-hurricane landfalls for the state. |
| state_landfall_rank | integer | State rank by total landfalls (1 = most). |
| state_return_period_years | float | 175 / state_landfalls_total: average years between landfalls over the 175-season record. (unit: years) |
| exposure_score | float | 0-100 hurricane-exposure score: 100*(0.60*minmax(log1p(landfalls)) + 0.40*minmax(log1p(majors))) across states. (unit: 0-100 index) |
| exposure_rank | integer | Rank by exposure_score (1 = most exposed). |
| exposure_tier | string | exposure_score quartile tier: e1 (top) .. e4. |
| peak_season_start_month | integer | Start month of the smallest contiguous month window covering >=50% of the state's landfalls. |
| peak_season_end_month | integer | End month of that peak-season window. |
| earliest_landfall_date | string | Earliest landfall date in this state and month (ISO); null when none. |
| latest_landfall_date | string | Latest landfall date in this state and month (ISO); null when none. |
| data_start_year | integer | First season in the climatology (1851). |
| data_end_year | integer | Last season in the climatology (2025). |
| source_url | string | HURDAT2 file URL the landfalls were parsed from. |
| collected_at | string | Date the HURDAT2 file was collected (ISO). |
| row_hash | string | md5 over state_code|month|n_landfalls|n_hurricanes|exposure_score. |
10 premières lignes d’exemple — un aperçu, pas le jeu de données complet.
| month | month_name | state_code | state_name | country_code | n_landfalls | n_hurricanes | n_major_hurricanes | max_landfall_wind_kt | strongest_category | month_share_of_state_pct | state_landfalls_total | state_hurricanes_total | state_major_total | state_landfall_rank | state_return_period_years | exposure_score | exposure_rank | exposure_tier | peak_season_start_month | peak_season_end_month | earliest_landfall_date | latest_landfall_date | data_start_year | data_end_year | source_url | collected_at | row_hash |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | January | AL | Alabama | USA | 0 | 0 | 0 | — | — | 0 | 14 | 9 | 2 | 9 | 12,5 | 41,87 | 9 | e2 | 9 | 9 | — | — | 1 851 | 2 025 | https://www.nhc.noaa.gov/data/hurdat/hurdat2-1851-2025-092326.txt | 2026-10-01 | 883e3e78eee1bf69eb225a11badc64fe |
| 2 | February | AL | Alabama | USA | 0 | 0 | 0 | — | — | 0 | 14 | 9 | 2 | 9 | 12,5 | 41,87 | 9 | e2 | 9 | 9 | — | — | 1 851 | 2 025 | https://www.nhc.noaa.gov/data/hurdat/hurdat2-1851-2025-092326.txt | 2026-10-01 | 59b79ccba57c9667c99519390176512b |
| 3 | March | AL | Alabama | USA | 0 | 0 | 0 | — | — | 0 | 14 | 9 | 2 | 9 | 12,5 | 41,87 | 9 | e2 | 9 | 9 | — | — | 1 851 | 2 025 | https://www.nhc.noaa.gov/data/hurdat/hurdat2-1851-2025-092326.txt | 2026-10-01 | 7e40ef8304fb7c3c03506577a98a756a |
| 4 | April | AL | Alabama | USA | 0 | 0 | 0 | — | — | 0 | 14 | 9 | 2 | 9 | 12,5 | 41,87 | 9 | e2 | 9 | 9 | — | — | 1 851 | 2 025 | https://www.nhc.noaa.gov/data/hurdat/hurdat2-1851-2025-092326.txt | 2026-10-01 | 19acaaad84d38d99aa075cab2634b071 |
| 5 | May | AL | Alabama | USA | 0 | 0 | 0 | — | — | 0 | 14 | 9 | 2 | 9 | 12,5 | 41,87 | 9 | e2 | 9 | 9 | — | — | 1 851 | 2 025 | https://www.nhc.noaa.gov/data/hurdat/hurdat2-1851-2025-092326.txt | 2026-10-01 | 08e7288ed0a192226057f756041e4c2f |
| 6 | June | AL | Alabama | USA | 0 | 0 | 0 | — | — | 0 | 14 | 9 | 2 | 9 | 12,5 | 41,87 | 9 | e2 | 9 | 9 | — | — | 1 851 | 2 025 | https://www.nhc.noaa.gov/data/hurdat/hurdat2-1851-2025-092326.txt | 2026-10-01 | c50aa593fa85b54fddf752e67ed804c0 |
| 7 | July | AL | Alabama | USA | 3 | 3 | 1 | 105 | Category 3 | 21,43 | 14 | 9 | 2 | 9 | 12,5 | 41,87 | 9 | e2 | 9 | 9 | 1870-07-30 | 1997-07-19 | 1 851 | 2 025 | https://www.nhc.noaa.gov/data/hurdat/hurdat2-1851-2025-092326.txt | 2026-10-01 | 7049bf46ad186f6370f96ebf3cf70b2f |
| 8 | August | AL | Alabama | USA | 2 | 1 | 0 | 75 | Category 1 | 14,29 | 14 | 9 | 2 | 9 | 12,5 | 41,87 | 9 | e2 | 9 | 9 | 1881-08-03 | 1950-08-31 | 1 851 | 2 025 | https://www.nhc.noaa.gov/data/hurdat/hurdat2-1851-2025-092326.txt | 2026-10-01 | 21475893eb9677d09a8275b594447b62 |
| 9 | September | AL | Alabama | USA | 9 | 5 | 1 | 105 | Category 3 | 64,29 | 14 | 9 | 2 | 9 | 12,5 | 41,87 | 9 | e2 | 9 | 9 | 1859-09-16 | 2020-09-16 | 1 851 | 2 025 | https://www.nhc.noaa.gov/data/hurdat/hurdat2-1851-2025-092326.txt | 2026-10-01 | 73efaad26be0946579fba2bb380574ad |
| 10 | October | AL | Alabama | USA | 0 | 0 | 0 | — | — | 0 | 14 | 9 | 2 | 9 | 12,5 | 41,87 | 9 | e2 | 9 | 9 | — | — | 1 851 | 2 025 | https://www.nhc.noaa.gov/data/hurdat/hurdat2-1851-2025-092326.txt | 2026-10-01 | 3538d0336329cb46ae12348424cfded6 |
Profilé le 1 oct. 2026 à partir de l’instantané 20261001T172948Z-429f6cb0dc67
Mesuré- Complétude
- 88,7 %
- Lignes
- 216
- Colonnes
- 28
- Colonnes incomplètes
- 8
| Colonne | Manquant | Distinctes | Plage | Distribution |
|---|---|---|---|---|
| monthbigint | 0 % | 13 | 1 → 12médiane 6,5 | |
| month_namevarchar | 0 % | 12 | — |
|
| state_codevarchar | 0 % | 18 | — |
|
| state_namevarchar | 0 % | 17 | — |
|
| country_codevarchar | 0 % | 1 | — |
|
| n_landfallsbigint | 0 % | 30 | 0 → 66médiane 0 | 2 hors du 1er–99e centile |
| n_hurricanesbigint | 0 % | 20 | 0 → 35médiane 0 | 3 hors du 1er–99e centile |
| n_major_hurricanesbigint | 0 % | 10 | 0 → 19médiane 0 | 3 hors du 1er–99e centile |
| max_landfall_wind_ktdouble | 68,1 % | 25 | 35 → 160médiane 90 | 2 hors du 1er–99e centile |
| strongest_categoryvarchar | 68,1 % | 6 | — |
|
| month_share_of_state_pctdouble | 11,1 % | 50 | 0 → 100médiane 0 | 2 hors du 1er–99e centile |
| state_landfalls_totalbigint | 0 % | 17 | 0 → 229médiane 12,5 | |
| state_hurricanes_totalbigint | 0 % | 13 | 0 → 107médiane 5 | |
| state_major_totalbigint | 0 % | 9 | 0 → 38médiane 1,5 | |
| state_landfall_rankbigint | 0 % | 20 | 1 → 18médiane 9,5 | |
| state_return_period_yearsdouble | 11,1 % | 15 | 0,8 → 175médiane 11,4 | |
| exposure_scoredouble | 0 % | 17 | 0 → 100médiane 36,19 | |
| exposure_rankbigint | 0 % | 20 | 1 → 18médiane 9,5 | |
| exposure_tiervarchar | 0 % | 4 | — |
|
| peak_season_start_monthbigint | 11,1 % | 4 | 7 → 10médiane 9 | |
| peak_season_end_monthbigint | 11,1 % | 3 | 8 → 10médiane 9 | |
| earliest_landfall_datevarchar | 68,1 % | 66 | — |
|
| latest_landfall_datevarchar | 68,1 % | 81 | — |
|
| data_start_yearbigint | 0 % | 1 | 1 851 → 1 851médiane 1 851 | |
| data_end_yearbigint | 0 % | 1 | 2 025 → 2 025médiane 2 025 | |
| source_urlvarchar | 0 % | 1 | — |
|
| collected_atvarchar | 0 % | 1 | — |
|
| row_hashvarchar | 0 % | 207 | — |
|
- Actuelle
20261001T172948Z-429f6cb0dc67 · sha256 429f6cb0dc67…
216 lignes · premier instantané
Dirigez n’importe quel LLM vers le point d’accès des métadonnées — la documentation ci-dessus est aussi lisible par machine (JSON-LD + Croissant).
curl "https://datazimuts.com/v1/datasets/nhc_landfall_climate_intel/us_hurricane_landfall_climate_monthly" | jq '{title, rows, columns_count, license}'import requests
ds = requests.get("https://datazimuts.com/v1/datasets/nhc_landfall_climate_intel/us_hurricane_landfall_climate_monthly").json()
print(ds["title"], ds["rows"], "rows")
# Sample rows for an LLM context window
for row in ds.get("sample_rows", [])[:5]:
print(row)Point d’accès API : https://datazimuts.com/v1/datasets/nhc_landfall_climate_intel/us_hurricane_landfall_climate_monthly
Astuce : récupérez /llms.txt pour le catalogue complet lisible par machine.
D’où viennent ces données et ce qui en a été fait. Le travail des autres apparaît sous forme de décomptes ; seuls les projets partagés sont nommés.
Citer cet instantané
Épinglé à l’instantané 20261001T172948Z-429f6cb0dc67 et à son empreinte, pour que vos lecteurs obtiennent exactement les données utilisées.
NHC Hurricane Landfall Climatology Intelligence. (2026). US hurricane-landfall climatology (state x month, 1851-2025) [Data set, snapshot 20261001T172948Z-429f6cb0dc67, sha256 429f6cb0dc67]. Datazimuts. Retrieved 2026-10-02, from https://datazimuts.com/fr/datasets/nhc_landfall_climate_intel/us_hurricane_landfall_climate_monthly?snapshot=20261001T172948Z-429f6cb0dc67
@misc{dz_nhc_landfall_climate_intel_us_hurricane__429f6cb0,
title = {{US hurricane-landfall climatology (state x month, 1851-2025)}},
author = {{NHC Hurricane Landfall Climatology Intelligence}},
year = {2026},
publisher = {Datazimuts},
howpublished = {\url{https://datazimuts.com/fr/datasets/nhc_landfall_climate_intel/us_hurricane_landfall_climate_monthly?snapshot=20261001T172948Z-429f6cb0dc67}},
note = {Snapshot 20261001T172948Z-429f6cb0dc67, sha256 429f6cb0dc6706cba2ef96096dcd5bbfd7ca56824633686d417d8610cabce66b; accessed 2026-10-02}
}Intégrer un tableau ou un graphique
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<iframe src="https://datazimuts.com/embed/chart?dataset=nhc_landfall_climate_intel%2Fus_hurricane_landfall_climate_monthly&lang=fr&theme=auto&snapshot=20261001T172948Z-429f6cb0dc67&x=state_return_period_years&y=month&agg=avg" title="US hurricane-landfall climatology (state x month, 1851-2025)" width="100%" height="380" style="border:0" loading="lazy"></iframe>
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