France Official Weather Station Data: Météo-France Daily Obs, Degree Days & Weather-Day Counts

FR. Données climatologiques quotidiennes officielles de Météo-France (stations du réseau, depuis le 1er janvier 2025 jusqu'au dernier jour publié) : lignes station-jour propres avec les codes qualité d'origine, degrés-jours (DJU, méthode Météo-France), jours de pluie / gel / rafales et taux de complétude par station, et un flux de suivi des journées nouvelles ou corrigées. Les fichiers bruts sont gratuits sur meteo.data.gouv.fr ; cet Actor les télécharge, les vérifie, les joint et les calcule pour vous. Valeurs informatives : ce n'est pas une attestation officielle.

This Actor reads Météo-France's official daily climatological files ("Données climatologiques de base quotidiennes") for every station in a department, from 2025-01-01 to the newest published day, and returns:

• observations: one clean row per station and day, every published value with its original Météo-France quality code, the two file families (RR-T-Vent and autres-parametres) joined without dropping stations;
• summary: per-station monthly or whole-range summaries: heating/cooling degree days (DJU), rain, frost and gust day counts, totals, extremes and per-variable completeness, with the rules stated in every row;
• monitor: a scheduled change feed of new, corrected and removed station-days since your last run.

Select stations by department, by station number, or by the nearest stations to a point.

The raw files are free. They are published as open data on meteo.data.gouv.fr (dataset "Données climatologiques de base - quotidiennes"). You pay this Actor for the work around them: no per-department gzip handling, station lookup by id or nearest point, the two families joined, degree days and weather days computed with stated rules, completeness, and a change feed you can schedule.

Data is fetched only from Météo-France's public file host (meteofrance.s3.sbg.io.cloud.ovh.net, the files linked from the dataset page). No login, no API key, no other site. The Actor checks that host's robots.txt on every run (today it does not exist: HTTP 404) and stops if that changes.

Not a certificate. All values are informational. They are not an official Météo-France attestation or certificate, and Météo-France does not endorse this Actor. For a legal weather certificate (e.g. a court case or an insurance claim), order one from Météo-France.

Who it is for

• BTP contractors and site managers documenting weather days (intempéries) for a site;
• energy managers and consultants who need DJU (décret tertiaire, CEE, energy bills);
• insurers and loss adjusters checking rain, frost or wind on a date;
• agronomists, researchers, data teams and LLM agents that need a dated official observation.

Input

Field	Default	Meaning
mode	observations	observations, summary or monitor
departments	[]	File codes 01-95 (Corsica is one file: use 20, not 2A/2B), 971-975, 984-988
stationIds	[]	8-digit Météo-France station numbers, e.g. 31069001 (Toulouse-Blagnac). Max 500
nearLatitude, nearLongitude	none	Pick the nearest stations to this point (both or neither)
nearestCount	3	1-10 nearest stations
maxDistanceKm	50	Stations farther than this are not selected; none within range = input error
families	["RR-T-Vent"]	RR-T-Vent (rain, temperature, wind) and/or autres-parametres (humidity, sunshine, snow, phenomena…). Summary mode always uses RR-T-Vent
dateFrom	dateTo − 30 days	YYYY-MM-DD, from 2025-01-01
dateTo	newest date in the files	YYYY-MM-DD, not after today (UTC)
summaryPeriod	month	month (calendar months within the range) or range (one row for the whole range)
heatingBaseC, coolingBaseC	18, 18	Degree-day bases (°C)
rainThresholdMm	1.0	Rain day: RR ≥ threshold
frostThresholdC	0.0	Frost day: TN ≤ threshold
gustThresholdMs	16.0	Gust day: FXI ≥ threshold (instantaneous gust at 10 m)
excludeUnvalidated	false	Summaries: count only quality 0/1 (true) or 0/1/9 (false). Quality 2 is never used
lookbackDays	45	Monitor window (newest available day and the days before it)
emitQualityOnlyChanges	false	Monitor: also output days whose values are unchanged but whose quality codes changed
snapshotKey	derived from the query	Monitor: name of the stored snapshot
maxRows	10,000	Upper bound on charged rows

The selection is the union of departments, stationIds and the near-point stations. Every input error stops the run before any download, with a message naming the field.

Output

Observation row: stationId, stationName, department, latitude, longitude, altitudeM, distanceKm (near-point selections only), date, then every value and quality column of each requested family under its original Météo-France name (RR, QRR, TN, QTN, HTN, …, TMERMAX, QTMERMAX, STATUS_FXI3S, STATUS_DXI3S), hasRrTVent, hasOtherParameters (whether the day exists in each family's file; null if that family was not requested), sourceFiles, sourceLastModified, retrievedAt and credit.

• An empty cell is null, never 0. Decimals stay as published (13.3). Quality and status codes are integers. Hour fields stay hhmm integers without leading zeros (144 = 01:44).
• A quality code can be present without a value; it is kept.

Summary row: station fields, periodStart, periodEnd, clippedToAvailable, daysInPeriod, daysWithRow, rrTotalMm, rainDays/rainDaysObserved, frostDays/frostDaysObserved, gustDays/gustDaysObserved, tnMinC, txMaxC, hddSum, cddSum, degreeDayDaysObserved, completeness ({RR, TN, TX, FXI} = usable days / daysInPeriod), doubtfulExcluded, unvalidatedUsed, noData, the thresholds and bases used, method, sourceFiles, sourceLastModified, retrievedAt, credit.

Change row (monitor): the observation row plus changeType (new, corrected, quality_only, removed), previousHash and snapshotTakenAt. A removed row carries only the station fields and date; all value columns are null.

OUTPUT record (key-value store): mode, resolved selection, requests made, files read (max date, Last-Modified, sha256), newestAvailableDate, requestedBeyondAvailable, staleFiles (files ending more than 7 days before the run date), withheldStations, stationsWithoutRows, rows pushed and charged, truncated, baseline_created, change counts and warnings. Every request is listed in the REQUEST_LOG record.

Calculation rules (summary)

• A value is usable when it is present and its quality code is allowed (0, 1, 9; or 0, 1 with excludeUnvalidated). Quality 2 (doubtful) is never usable. Unusable and missing values are skipped, never imputed and never counted as 0.
• rainDays = usable days with RR ≥ threshold; rainDaysObserved = usable RR days. Frost (TN ≤ threshold) and gust (FXI ≥ threshold) work the same way.
• Degree days use the Météo-France method: Tavg = (TN + TX) / 2 on days where both are usable; HDD = max(0, heatingBase − Tavg), CDD = max(0, Tavg − coolingBase). Sums are exact and rounded to 0.1 (half up) only at the end. degreeDayDaysObserved counts those days. rrTotalMm is the sum of usable RR; hddSum, cddSum, rrTotalMm, tnMinC and txMaxC are null when nothing usable exists.
• The period is clipped to the last date of the station's file (clippedToAvailable: true); daysInPeriod counts the clipped calendar days. A month that lies entirely after the file's last date gives daysInPeriod: 0, noData: true and a periodEnd before periodStart (the file's last date).
• noData: true when no usable RR, TN, TX or FXI exists. Such rows are output free of charge.
• Every row carries the method text, e.g. "DJU méthode Météo-France (TN+TX)/2, base 18 °C; quality codes used: 0, 1, 9; quality 2 excluded; missing values not imputed; informational, not an official certificate."

Monitor mode

Schedule the Actor (e.g. every Monday at 06:00 UTC) with mode: monitor and a fixed snapshotKey. Each run computes the station-days of the window (newest available day back lookbackDays days) and compares them with the snapshot stored in the named key-value store meteofrance-daily-snapshots:

• first run: stores a baseline, outputs nothing, charges only the start;
• new: a station-day not in the snapshot; corrected: a value changed; quality_only: only quality codes changed (counted in OUTPUT, output only with emitQualityOnlyChanges); removed: a day inside both windows that disappeared (output free of charge). Days that slide out of the window are dropped silently;
• the snapshot is replaced only after a fully successful run. If the change set exceeds maxRows or your max charge, the run fails before outputting anything ("raise maxRows / max charge") and the snapshot stays unchanged;
• a snapshotKey used with a different selection, families or lookbackDays is an input error (the snapshot's queryHash differs). The default key is derived from those settings;
• a station withheld by the catalog guard (see Limitations) is not a deletion: it outputs no change rows and its snapshot state is kept (sliding with the window). When it returns, only what really changed since it was last compared is output (new, corrected, removed as usual), so unchanged days are never output or charged again. A station already withheld at the first run is listed in OUTPUT.changes.untrackedStations; when it returns, its state is taken silently like a baseline (stationsBaselined, no rows, no charge).

Examples

The four outputs below come from running this Actor on the live files of 2026-10-09 (values are Météo-France's; long rows are shortened with …).

1. Toulouse-Blagnac wind on 9 Jan 2026 (insurer / loss adjuster)

Input:

{
  "stationIds": [
    "31069001"
  ],
  "dateFrom": "2026-01-09",
  "dateTo": "2026-01-09"
}

Output (1 row, 1 station-day = USD 0.0005 + start):

{
  "stationId": "31069001",
  "stationName": "TOULOUSE-BLAGNAC",
  "department": "31",
  "latitude": 43.621,
  "longitude": 1.378833,
  "altitudeM": 151,
  "distanceKm": null,
  "date": "2026-01-09",
  "RR": 16.7,
  "QRR": 1,
  "TN": 4.8,
  "QTN": 1,
  "TX": 9.2,
  "QTX": 1,
  "FFM": 8.7,
  "QFFM": 1,
  "FXY": 14.0,
  "QFXY": 1,
  "DXY": 270,
  "HXY": 1338,
  "FXI": 22.3,
  "QFXI": 1,
  "DXI": 250,
  "QDXI": 1,
  "HXI": 1024,
  "QHXI": 9,
  "FXI3S": 21.5,
  "QFXI3S": 1,
  "STATUS_FXI3S": 0,
  "STATUS_DXI3S": 1,
  "…": "…",
  "hasRrTVent": true,
  "hasOtherParameters": null,
  "sourceFiles": [
    "https://meteofrance.s3.sbg.io.cloud.ovh.net/data/synchro_ftp/BASE/QUOT/Q_31_latest-2025-2026_RR-T-Vent.csv.gz"
  ],
  "sourceLastModified": {
    "https://meteofrance.s3.sbg.io.cloud.ovh.net/data/synchro_ftp/BASE/QUOT/Q_31_latest-2025-2026_RR-T-Vent.csv.gz": "2026-10-08T08:51:04Z"
  },
  "credit": "Source : Météo-France (Données climatologiques de base quotidiennes, Licence Ouverte 2.0), file updated 2026-10-08T08:51:04Z. Reformatted by this Actor; not an official Météo-France publication or certificate."
}

FXI 22.3 m/s (80 km/h) is the day's maximum instantaneous gust at 10 m, from 250° (DXI), at HXI 1024 (10:24); RR 16.7 mm fell between 06 UTC on the 9th and 06 UTC on the 10th. Quality 1 = validated.

2. Colmar stations for 2026 (agronomy / research)

Input (Colmar-INRAE, Colmar-Meyenheim and Bergheim-INRAE, 1 January 2026 to the newest day):

{
  "stationIds": [
    "68066001",
    "68205001",
    "68028001"
  ],
  "dateFrom": "2026-01-01",
  "families": [
    "RR-T-Vent"
  ],
  "maxRows": 5000
}

Output: 837 rows (68028001: 279, 68066001: 279, 68205001: 279), dateTo resolved to 2026-10-06, the newest day in the file. One of them:

{
  "stationId": "68066001",
  "stationName": "COLMAR-INRAE",
  "date": "2026-02-25",
  "RR": 0.0,
  "QRR": 1,
  "TN": 5.7,
  "QTN": 1,
  "TX": 12.2,
  "QTX": 1,
  "TM": 8.3,
  "QTM": 1,
  "FXI": null,
  "QFXI": null,
  "…": "…"
}

Add "families": ["RR-T-Vent", "autres-parametres"] for humidity, sunshine, ETP and snow, or switch to mode: summary for monthly totals.

3. BTP monthly weather-day summary for 3 sites

Input (September 2026; rain day ≥ 1 mm, frost day TN ≤ 0 °C, gust day FXI ≥ 16 m/s):

{
  "mode": "summary",
  "stationIds": [
    "75106001",
    "69029001",
    "13054001"
  ],
  "dateFrom": "2026-09-01",
  "dateTo": "2026-09-30",
  "summaryPeriod": "month",
  "rainThresholdMm": 1,
  "frostThresholdC": 0,
  "gustThresholdMs": 16
}

Output: 3 summaries (3 × station-summary = USD 0.06 + start). Lyon-Bron:

{
  "stationId": "69029001",
  "stationName": "LYON-BRON",
  "periodStart": "2026-09-01",
  "periodEnd": "2026-09-30",
  "clippedToAvailable": false,
  "daysInPeriod": 30,
  "daysWithRow": 30,
  "rrTotalMm": 10.1,
  "rainDays": 2,
  "rainDaysObserved": 30,
  "frostDays": 0,
  "frostDaysObserved": 30,
  "gustDays": 2,
  "gustDaysObserved": 30,
  "tnMinC": 8.8,
  "txMaxC": 35.8,
  "hddSum": 3.0,
  "cddSum": 93.0,
  "degreeDayDaysObserved": 30,
  "completeness": {
    "RR": 1.0,
    "TN": 1.0,
    "TX": 1.0,
    "FXI": 1.0
  },
  "doubtfulExcluded": {
    "RR": 0,
    "TN": 0,
    "TX": 0,
    "FXI": 0
  },
  "unvalidatedUsed": {
    "RR": 0,
    "TN": 0,
    "TX": 0,
    "FXI": 0
  },
  "noData": false,
  "method": "DJU méthode Météo-France (TN+TX)/2, base 18 °C; quality codes used: 0, 1, 9; quality 2 excluded; missing values not imputed; informational, not an official certificate.",
  "…": "…"
}

The other two sites: MARIGNANE: 2 rain days, 4 gust days (30 observed), HDD 0.0, CDD 162.6; LUXEMBOURG: 2 rain days, 0 gust days (0 observed), HDD 0.7, CDD 96.2. Luxembourg (Paris) publishes no FXI value for September 2026, so gustDaysObserved is 0 and completeness.FXI is 0.0: the gust count is unknown, not zero.

4. Weekly monitor schedule for one department

Create a saved task with this input and an Apify schedule such as 0 6 * * 1 (Mondays 06:00 UTC):

{
  "mode": "monitor",
  "departments": [
    "31"
  ],
  "lookbackDays": 45,
  "snapshotKey": "toulouse-weekly"
}

First run: OUTPUT.baseline_created is true, 831 station-days of 2026-08-24 to 2026-10-07 are stored, nothing is output and only the start is charged. Later runs output only what changed since the previous run. A correction looks like this (from the acceptance tests, where a stored entry was altered to simulate a corrected value):

{
  "changeType": "corrected",
  "stationId": "31374001",
  "stationName": "MONTESQUIEU-LAURAGAIS",
  "department": "31",
  "date": "2026-09-12",
  "RR": 0.0,
  "QRR": 1,
  "TN": 11.8,
  "QTN": 1,
  "TX": 29.7,
  "QTX": 1,
  "…": "…",
  "previousHash": "23867c3c43831f1c",
  "snapshotTakenAt": "2026-10-09T08:24:03.019451+00:00"
}

Pricing (pay per event)

Event	Price (USD)	Charged when
Actor start	0.005	once per run
station-day	0.0005	each observation row; each new, corrected or emitted quality_only change row
station-summary	0.02	each summary row with at least one usable value

Never charged: withheld stations, noData summaries, removed rows, monitor baselines, and anything in a failed run. Observations and summaries stop cleanly at maxRows or your maximum charge (truncated: true in OUTPUT).

Typical costs: one station for one month = 30 rows ≈ USD 0.02; a monthly weather-day summary for 5 sites = USD 0.105 including the start; a year of monthly DJU for 20 sites = 240 summaries = USD 4.81; one department, 30 days, both families ≈ 600 rows ≈ USD 0.31.

Credit and licence

Every row carries the credit line:

Source : Météo-France (Données climatologiques de base quotidiennes, Licence Ouverte 2.0), file updated <Last-Modified>. Reformatted by this Actor; not an official Météo-France publication or certificate.

The data is published by Météo-France under the Licence Ouverte 2.0, which allows commercial reuse with attribution ("Source : Météo-France" and the update date). Keep the credit when you republish the data.

Data lag and conventions

• Lag: a day typically appears J+1 to J+3. Values can be corrected later: stations of type 3/4 are expert-validated up to M+21 days, and quality codes move from 9 (filtered) to 1 (validated) or 0 (protected). The publisher's files have stalled for days at times (June 2026). OUTPUT.staleFiles lists files ending more than 7 days before the run date.
• RR and HNEIGEF cover 06 UTC day J to 06 UTC day J+1 and are filed under day J (the value read on J+1 belongs to J).
• Times (HTN, HTX, HXI, …) are hhmm integers as published. Météo-France's field file gives their format but not their time zone; only some definitions (RR, HNEIGEF, NEIGETOTX) state UTC ("FU").

Quality codes (Météo-France)

Code	Meaning
9	filtered: the value passed the first-level checks
0	protected: definitively validated by the climatologist
1	validated: by automatic check or by the climatologist
2	doubtful: flagged by an automatic check, being verified
(empty)	no quality code

Every value column X has a quality column QX. STATUS_FXI3S (0 not computed, 1 transfer function) and STATUS_DXI3S (0 measured, 1 taken from DXI) have no quality column.

Field dictionary

Built from Météo-France's two field description files (Q_descriptif_champs_RR-T-Vent.csv, Q_descriptif_champs_autres-parametres.csv). Each value field X is followed in the output by its quality code QX.

Field	File family	Meaning (EN)	Météo-France definition (FR, verbatim)
NUM_POSTE	both	station number (8 digits) -> stationId	numéro Météo-France du poste sur 8 chiffres
NOM_USUEL	both	station name -> stationName	nom usuel du poste
LAT	both	latitude, decimal degrees -> latitude	latitude, négative au sud (en degrés et millionièmes de degré)
LON	both	longitude, decimal degrees -> longitude	longitude, négative à l’ouest de GREENWICH (en degrés et millionièmes de degré)
ALTI	both	altitude of the shelter or rain gauge, m -> altitudeM	altitude du pied de l'abri ou du pluviomètre si pas d'abri (en m)
AAAAMMJJ	both	date YYYYMMDD -> date (YYYY-MM-DD)	date de la mesure (année mois jour)
RR	RR-T-Vent	precipitation over 24 h, 06 UTC day J to 06 UTC J+1, filed under day J (mm)	quantité de précipitation tombée en 24 heures (de 06h FU le jour J à 06h FU le jour J+1). La valeur relevée à J+1 est affectée au jour J (en mm et 1/10)
TN	RR-T-Vent	minimum temperature under shelter (°C)	température minimale sous abri (en °C et 1/10)
HTN	RR-T-Vent	time of TN (hhmm)	heure de TN (hhmm)
TX	RR-T-Vent	maximum temperature under shelter (°C)	température maximale sous abri (en °C et 1/10)
HTX	RR-T-Vent	time of TX (hhmm)	heure de TX (hhmm)
TM	RR-T-Vent	daily mean of hourly temperatures (°C)	moyenne quotidienne des températures horaires sous abri (en °C et 1/10)
TNTXM	RR-T-Vent	daily mean (TN+TX)/2 (°C)	moyenne quotidienne (TN+TX)/2 (en °C et 1/10)
TAMPLI	RR-T-Vent	daily temperature range TX-TN (°C)	amplitude thermique quotidienne : écart entre TX et TN quotidiens (TX-TN) (en °C et 1/10)
TNSOL	RR-T-Vent	minimum temperature 10 cm above ground (°C)	température quotidienne minimale à 10 cm au-dessus du sol (en °C et 1/10)
TN50	RR-T-Vent	minimum temperature 50 cm above ground (°C)	température quotidienne minimale à 50 cm au-dessus du sol (en °C et 1/10)
DG	RR-T-Vent	frost duration under shelter, T ≤ 0 °C (min)	durée de gel sous abri (T ≤ 0°C) (en mn)
FFM	RR-T-Vent	mean 10-min wind speed at 10 m (m/s)	moyenne quotidienne de la force du vent moyenné sur 10 mn, à 10 m (en m/s et 1/10)
FF2M	RR-T-Vent	mean 10-min wind speed at 2 m (m/s)	moyenne quotidienne de la force du vent moyenné sur 10 mn, à 2 m (en m/s et 1/10)
FXY	RR-T-Vent	max hourly 10-min mean wind at 10 m (m/s)	maximum quotidien de la force maximale horaire du vent moyenné sur 10 mn, à 10 m (en m/s et 1/10)
DXY	RR-T-Vent	direction of FXY (degrees)	direction de FXY (en rose de 360)
HXY	RR-T-Vent	time of FXY (hhmm)	heure de FXY (hhmm)
FXI	RR-T-Vent	max instantaneous gust at 10 m (m/s)	maximum quotidien de la force maximale horaire du vent instantané, à 10 m (en m/s et 1/10)
DXI	RR-T-Vent	direction of FXI (degrees)	direction de FXI (en rose de 360)
HXI	RR-T-Vent	time of FXI (hhmm)	heure de FXI (hhmm)
FXI2	RR-T-Vent	max instantaneous gust at 2 m (m/s)	maximum quotidien de la force maximale horaire du vent instantané, à 2 m (en m/s et 1/10)
DXI2	RR-T-Vent	direction of FXI2 (degrees)	direction de FXI2 (en rose de 360)
HXI2	RR-T-Vent	time of FXI2 (hhmm)	heure de FXI2 (hhmm)
FXI3S	RR-T-Vent	max 3-second mean wind at 10 m (m/s)	maximum quotidien de la force maximale horaire du vent moyenné sur 3 s, à 10 m (en m/s et 1/10)
DXI3S	RR-T-Vent	direction of FXI3S (degrees)	direction de FXI3S (en rose de 360)
HXI3S	RR-T-Vent	time of FXI3S (hhmm)	heure de FXI3S (hhmm)
DRR	RR-T-Vent	precipitation duration (min)	durée des précipitations (en mn)
STATUS_FXI3S	RR-T-Vent	how FXI3S was obtained: 0 not computed, 1 transfer function	code indiquant le mode d'obtention du FXI3S (0: non calculé, 1: calculé à partir d'une fonction de transfert)
STATUS_DXI3S	RR-T-Vent	how DXI3S was obtained: 0 measured, 1 taken from DXI	code indiquant le mode d'obtention du DXI3S (0: mesuré, 1: assimilé à DXI)
DHUMEC	autres-parametres	leaf wetness duration (min)	durée d’humectation (en mn)
PMERM	autres-parametres	mean sea-level pressure (hPa)	moyenne quotidienne des pressions mer horaires (en hPa et 1/10)
PMERMIN	autres-parametres	minimum sea-level pressure (hPa)	minimum quotidien des pressions mer minimales horaires (en hPa et 1/10)
INST	autres-parametres	sunshine duration (min)	durée d’insolation quotidienne (en mn)
GLOT	autres-parametres	global radiation (J/cm²)	rayonnement global quotidien (en J/cm2)
DIFT	autres-parametres	diffuse radiation (J/cm²)	rayonnement diffus quotidien (en J/cm2)
DIRT	autres-parametres	direct radiation (J/cm²)	rayonnement direct quotidien (en J/cm2)
INFRART	autres-parametres	sum of hourly infrared radiation (J/cm²)	somme des rayonnements infra-rouge horaires (en J/cm2)
UV	autres-parametres	daily UV radiation (J/cm²)	cumul quotidien de rayonnement ultra-violet (en J/cm2)
UV_INDICEX	autres-parametres	maximum hourly UV index	maximum des indices UV horaires
SIGMA	autres-parametres	sunshine fraction of day length (%)	fraction d’insolation par rapport à la durée du jour (en %)
UN	autres-parametres	minimum relative humidity (%)	minimum quotidien des humidités relatives minimales horaires (en %)
HUN	autres-parametres	time of UN (hhmm)	heure de UN (hhmm)
UX	autres-parametres	maximum relative humidity (%)	maximum quotidien des humidités relatives maximales horaires (en %)
HUX	autres-parametres	time of UX (hhmm)	heure de UX (hhmm)
UM	autres-parametres	mean relative humidity (%)	moyenne quotidienne des humidités relatives horaires (en %)
DHUMI40	autres-parametres	duration with U ≤ 40 % (min)	durée humidité avec U ≤ 40 % (en mn)
DHUMI80	autres-parametres	duration with U ≥ 80 % (min)	durée humidité U ≥ 80 % (en mn)
TSVM	autres-parametres	mean vapour pressure (hPa)	tension de vapeur moyenne (en hPa et 1/10)
ETPMON	autres-parametres	Penman-Monteith potential evapotranspiration (mm)	ETP Penman-Monteith quotidienne (en mm et 1/10)
ETPGRILLE	autres-parametres	Penman-Monteith ETP at the nearest grid point (mm)	ETP Penman-Monteith calculée au point de grille le plus proche (en mm et 1/10)
ECOULEMENTM	autres-parametres	unused field	champ inutilisé
HNEIGEF	autres-parametres	fresh snow over 24 h, 06 UTC J to 06 UTC J+1, still on the ground at 06 UTC (cm)	hauteur de neige fraîche tombée en 24 heures (de 06h FU le jour J à 06h FU le jour J+1) qui reste au sol à 06h FU. La valeur relevée à J+1 est affectée au jour J (en cm)
NEIGETOTX	autres-parametres	maximum daily snow depth (cm)	épaisseur maximale de neige quotidienne (entre 01h et 24h FU) (en cm)
NEIGETOT06	autres-parametres	snow depth measured at 6 h (cm)	épaisseur totale de neige au sol mesurée à 6h (NEIGETOT de 6h) (en cm)
NEIG	autres-parametres	snow occurrence (0/1)	occurrence de neige (0 s’il n’a pas neigé, 1 s’il a neigé)
BROU	autres-parametres	fog occurrence (0/1)	occurrence de brouillard (0 ou 1 si phéno.)
ORAG	autres-parametres	thunderstorm occurrence (0/1)	occurrence d’orage (0 ou 1 si phéno.)
GRESIL	autres-parametres	sleet/graupel occurrence (0/1)	occurrence de grésil (0 ou 1 si phéno.)
GRELE	autres-parametres	hail occurrence (0/1)	occurrence de grêle (0 ou 1 si phéno.)
ROSEE	autres-parametres	dew occurrence (0/1)	occurrence de rosée (0 ou 1 si phéno.)
VERGLAS	autres-parametres	glaze ice occurrence (0/1)	occurrence de verglas (0 ou 1 si phéno.)
SOLNEIGE	autres-parametres	snow-covered ground (0/1)	occurrence de sol couvert de neige (0 ou 1 si phéno.)
GELEE	autres-parametres	hoar frost occurrence (0/1)	occurrence de gelée blanche (0 ou 1 si phéno.)
FUMEE	autres-parametres	smoke occurrence (0/1)	occurrence de fumée (0 ou 1 si phéno.)
BRUME	autres-parametres	mist occurrence (0/1)	occurrence de brume (0 ou 1 si phéno.)
ECLAIR	autres-parametres	lightning occurrence (0/1)	occurrence d’éclair (0 ou 1 si phéno)
NB300	autres-parametres	max cloud cover > 4/8 with base < 300 m (octa)	nébulosité maximale > 4/8 et couche < 300 m (en octa)
BA300	autres-parametres	minimum base height of NB300 (m)	hauteur minimale de NB300 (en m)
TMERMIN	autres-parametres	minimum sea water temperature (°C)	température minimale quotidienne de l’eau de mer (en °C et 1/10)
TMERMAX	autres-parametres	maximum sea water temperature (°C)	température maximale quotidienne de l’eau de mer (en °C et 1/10)

Limitations

• Data from 2025-01-01 only (the latest-2025-2026 files). Older years are in separate archives this Actor does not read.
• Year rollover: when Météo-France starts the next file span, the current files disappear and the run fails with "source file missing … (possible year rollover; Actor update required)". The Actor never guesses a new file name; an update follows after review.
• Nearest station ≠ your exact site. Weather can differ over a few kilometres; check distanceKm and altitudeM.
• Not a certificate (see above).
• No Mayotte (976): Météo-France publishes no file for it. Corsica is department file 20.
• Stations are limited to a reviewed catalog of 2,408 stations. A station that is new, renamed or moved to another department file is withheld (not output, not charged, listed by number in OUTPUT.withheldStations) until the catalog is reviewed in an Actor update. A station that leaves its department file for a file your query does not download cannot be told apart from a deletion: in monitor mode its days in both windows are output as removed (free).
• The whole run fails, with nothing charged beyond the start, if any downloaded file is malformed in any row (not only your stations or dates). Partial or guessed data is never output.