Sources
Open data. Credit required.
| Source | Group | Licence | Runs | Covers |
|---|---|---|---|---|
| Forecasts (18) | ||||
| NWS gridNOAA/NWS · nwsNBM · PD · every 15 min · United StatesEach place about every 2 h. | NBM | PD | every 15 min | United States |
| NBMNOAA/NWS MDL · nbmNBM · PD · 01/07/13/19Z · United States | NBM | PD | 01/07/13/19Z | United States |
| GFSNOAA/NWS NCEP · gfsGFS · PD · 00/06/12/18Z · Worldwide | GFS | PD | 00/06/12/18Z | Worldwide |
| AIGFSNOAA/NWS NCEP · aigfsGFS · PD · 00/06/12/18Z · Worldwide | GFS | PD | 00/06/12/18Z | Worldwide |
| GFS MOSNOAA/NWS MDL · mosGFS · PD · 00/12Z · United States | GFS | PD | 00/12Z | United States |
| IFSECMWF · ifsECMWF · CC BY · 00/12Z · Worldwide | ECMWF | CC BY | 00/12Z | Worldwide |
| AIFSECMWF · aifsECMWF · CC BY · 00/06/12/18Z · Worldwide | ECMWF | CC BY | 00/06/12/18Z | Worldwide |
| ENSECMWF via dynamical.org · ensECMWF · CC BY · 00Z · Full-blend places | ECMWF | CC BY | 00Z | Full-blend places |
| MET NorwayMET Norway · metnoECMWF · CC BY · every 10 min · WorldwideEach place about hourly. Inside the Nordics it is its own model group (MEPS). | ECMWF | CC BY | every 10 min | Worldwide |
| MOSMIXDWD · mosmixDWD · CC BY · 03/09/15/21Z · Its stations | DWD | CC BY | 03/09/15/21Z | Its stations |
| ICONDWD · iconDWD · CC BY · 00/12Z · Worldwide | DWD | CC BY | 00/12Z | Worldwide |
| GEMECCC · gemCMC · ECCC · 00/12Z · Worldwide | CMC | ECCC | 00/12Z | Worldwide |
| NAEFSECCC and NOAA NCEP · naefsNAEFS · ECCC · 00/12Z · Its city list | NAEFS | ECCC | 00/12Z | Its city list |
| SMNSMN/CONAGUA · smnSMN · SMN · 01:00 · 13:00 UTC · MexicoCredit SMN; no resale of unchanged copies; no mass requests; not an official SMN channel. | SMN | SMN | 01:00 · 13:00 UTC | Mexico |
| NBM QMDNOAA/NWS MDL · nbmqNBM · PD · 00/12Z · Contiguous US | NBM | PD | 00/12Z | Contiguous US |
| HRRRNOAA/NWS NCEP · hrrrHRRR · PD · 00/06/12/18Z · Contiguous US | HRRR | PD | 00/06/12/18Z | Contiguous US |
| WPCNOAA/NWS WPC · wpcWPC · PD · every 20 min · Contiguous US | WPC | PD | every 20 min | Contiguous US |
| GEFSNOAA NCEP via dynamical.org · gefsNCEP · CC BY · 00Z · Worldwide (day 8 on: US) | NCEP | CC BY | 00Z | Worldwide (day 8 on: US) |
| Context (15) | ||||
| METARNOAA/NWS AWC · awc— · PD · every 5 min · Its stationsNon-US METARs: single latest reports only; the originating service is credited. | — | PD | every 5 min | Its stations |
| METAR APINOAA/NWS AWC · settle_metar— · PD · hourly · Settlement stationsNon-US METARs: the originating service is credited. | — | PD | hourly | Settlement stations |
| CLINOAA/NWS; Hong Kong Observatory · settle_poll— · PD · every 10 min · Settlement stations | — | PD | every 10 min | Settlement stations |
| CF6NOAA/NWS · cf6— · PD · 15:00 UTC · Settlement stations | — | PD | 15:00 UTC | Settlement stations |
| CLMNOAA/NWS · clm— · PD · 15:10 UTC · Settlement stations | — | PD | 15:10 UTC | Settlement stations |
| HKO dailyHong Kong Observatory · hko_daily— · Attr · 17:30 UTC · Hong Kong | — | Attr | 17:30 UTC | Hong Kong |
| ACIS dailyNOAA RCC ACIS · acis_daily— · PD · 15:30 UTC · NYC, Seattle | — | PD | 15:30 UTC | NYC, Seattle |
| Met OfficeMet Office · ukmo_station— · OGL · 09:00 UTC · London (Heathrow) | — | OGL | 09:00 UTC | London (Heathrow) |
| PolymarketPolymarket (gamma API) · pm_markets— · Venue · hourly · Market cities | — | Venue | hourly | Market cities |
| MRMSNOAA NSSL/NCEP · mrms— · PD · every 10 min · Contiguous US | — | PD | every 10 min | Contiguous US |
| NBM NBSNOAA/NWS MDL · nbsNBM · PD · 01/07/13/19Z · US market stations | NBM | PD | 01/07/13/19Z | US market stations |
| NWS alertsNOAA/NWS · nws_alerts— · PD · every 5 min · United States | — | PD | every 5 min | United States |
| MeteoAlarmEUMETNET · meteoalarm— · CC BY · every 30 min · EuropeWarnings unaltered, with issuer and link. | — | CC BY | every 30 min | Europe |
| NHC stormsNOAA/NWS NHC · nhc— · PD · every 30 min · Atlantic, E/C Pacific | — | PD | every 30 min | Atlantic, E/C Pacific |
| NormalsNOAA RCC ACIS · acis— · PD · 06:00 UTC · US stationsEach station’s normals once a year. | — | PD | 06:00 UTC | US stations |
Not used
- Open-Meteo APILicence is non-commercial
- Met Office DataHubNeeds an API key
- ECMWF ENS direct16 MB per time step; we read ENS from dynamical.org
- AIGEFSAn average of models already counted
- NWS observations APIUnreliable; METARs come from AWC
- IEMAn archive of NWS data; we fetch the originals
Credits
GET /credits- noaa
- Source: NOAA/NWS (US Government work, public domain); NBM/MOS/GFS/AIGFS/HRRR/WPC/MRMS: NOAA NCEP/MDL/NSSL; modified by groundhog (point extraction, local-day max/min, precipitation totals and chances); not endorsed by NOAA
- metno
- Data from MET Norway (Locationforecast 2.0), CC BY 4.0 https://creativecommons.org/licenses/by/4.0/ ; modified: local-day max/min, precipitation totals and chances
- dwd
- Quelle: Deutscher Wetterdienst (MOSMIX, CC BY 4.0; modified: local-day max/min, precipitation totals and chances)
- eccc
- Data Source: Environment and Climate Change Canada (NAEFS: CMC GEPS members) and NOAA NCEP (GEFS members); modified: member daily max/min quantiles, precipitation totals and chances
- ecmwf
- Based on data and products of the European Centre for Medium-Range Weather Forecasts (ECMWF); ENS read from dynamical.org's archive. CC BY 4.0 https://creativecommons.org/licenses/by/4.0/ ; modified by groundhog (point extraction, local-day max/min, ensemble quantiles, precipitation totals and chances). ECMWF does not accept any liability whatsoever for any error or omission in the data, their availability, or for any loss or damage arising from their use.
- dyn_gefs
- NOAA NWS NCEP GEFS data processed by dynamical.org from NOAA Open Data Dissemination archives. CC BY 4.0 https://creativecommons.org/licenses/by/4.0/ ; modified by groundhog: member precipitation totals, chances and quantiles at points
- smn
- Fuente: Servicio Meteorológico Nacional (SMN/CONAGUA), pronóstico por municipio. Not an official SMN channel.
- awc_us
- Source: NOAA/NWS Aviation Weather Center (public domain)
- awc_intl
- METAR via NOAA Aviation Weather Center; originated by national services
- acis
- Source: NOAA Regional Climate Centers, Applied Climate Information System (ACIS; US Government work, public domain)
- hko
- Source: Hong Kong Observatory open data via DATA.GOV.HK (attribution required by the DATA.GOV.HK terms of use)
- ukmo
- Contains public sector information licensed under the Open Government Licence v3.0 (Met Office historic station data, Heathrow)
- meteoalarm
- Source: MeteoAlarm (EUMETNET), warnings issued by national services; CC BY 4.0; text unaltered
- geonames
- Place names: GeoNames (geonames.org), CC BY 4.0
- venues
- Market rules and results: Kalshi, Polymarket (linked; rules paraphrased by groundhog). Not affiliated with Kalshi or Polymarket.
Free for any use, commercial and trading included, within the rate limit; reuse of the numbers follows each source's licence. groundhog.markets extracts points and builds local-day max/min and ensemble quantiles; providers do not endorse it.