---
id: "wmo_station_index"
kind: "datatype"
status: "draft"
is_pii: false
categories: ["environment", "geo"]
langs: ["common"]
quality: 85
url: "https://registry.apicrafter.io/datatype/wmo_station_index"
---

# WMO station index number (`wmo_station_index`)

> **Draft.** Draft records have not been reviewed yet and may be incomplete or wrong; do not treat them as authoritative for legal or compliance decisions.

Five-digit index number of a land meteorological station in SYNOP and other WMO code forms: a 2-digit block number for a country or region followed by a 3-digit station number. Leading zeros are significant. WMO publishes the list in WMO-No. 9, Volume A. Numbers that repeat one figure five times or end in 000 or 999 are not assigned; the regexp does not exclude them, so it is weak without column context.

- Personal data (PII): no
- Categories: Environment (environment), Geographic identifiers (geo)
- Countries: global
- Languages: Common to most languages (common)
- Classification: identifier

## Detection

Regular expression (Python `re`):

```
^\d{5}$
```

## Examples

- `10962` — Hohenpeissenberg, Germany
- `06702` — La Dole, Switzerland
- `74492` — Blue Hill Observatory, United States
- `6036` (invalid example) — Four digits instead of five

## Mappings

- wikidata: `P9737`

## Sources

- wikidata: <https://www.wikidata.org/wiki/Property:P9737>
- doc: <https://wiki.openstreetmap.org/wiki/Key:ref:wmo>

## Quality

Score 85/100. Missing: translation, detector coverage.

JSON: <https://registry.apicrafter.io/api/v1/datatypes/wmo_station_index.json> · Edit: <https://github.com/apicrafter/metacrafter-registry/edit/main/data/datatypes/any/environment/wmo_station_index.yaml>