NOAA Climate Data

Get climate observations from NOAA Climate Data Online. Returns historical weather measurements such as temperature, precipitation, and snowfall. You must provide either a station_id or a FIPS code to identify the location, and a date range. Args: station_id: NOAA station identifier (e.g. 'GHCND:USW00094728' for Central Park). fips: FIPS code for county or state (e.g. '36' for New York state, '36061' for Manhattan). dataset: Dataset ID. Common values: 'GHCND' (daily summaries), 'GSOM' (monthly), 'GSOY' (annual), 'NORMAL_DLY' (daily normals). Default is 'GHCND'. start_date: Start date in YYYY-MM-DD format. Required for most datasets. end_date: End date in YYYY-MM-DD format. Required for most datasets. data_types: Comma-separated data type IDs to filter. Common types: TMAX (max temp), TMIN (min temp), TAVG (avg temp), PRCP (precipitation), SNOW (snowfall), SNWD (snow depth), AWND (avg wind speed). If omitted, all available types are returned. limit: Maximum number of records to return (default 100, max 1000).

Find NOAA weather stations in an area. Returns a list of weather stations with their IDs, names, coordinates, and active date ranges. Use the station IDs with get_climate_data. Args: state: Two-letter US state abbreviation (e.g. 'CA', 'NY'). county_fips: Five-digit county FIPS code (e.g. '36061' for Manhattan). dataset: Dataset ID to filter stations that have data in this dataset. Default is 'GHCND' (daily summaries). limit: Maximum number of stations to return (default 25, max 1000).

Get 30-year climate normal values for a NOAA weather station. Climate normals are averages computed over the most recent 30-year period (currently 1991-2020). They represent typical conditions for a location and are useful for comparing current conditions to historical baselines. Args: station_id: NOAA station identifier (e.g. 'GHCND:USW00094728'). Use find_stations to look up station IDs. data_types: Comma-separated normal data type IDs to filter. Common types: DLY-TMAX-NORMAL (avg daily max temp), DLY-TMIN-NORMAL (avg daily min temp), DLY-TAVG-NORMAL (avg daily temp), DLY-PRCP-PCTALL-GE001HI (precip probability), MTD-PRCP-NORMAL (monthly precip), ANN-TMAX-NORMAL (annual max temp). If omitted, all available normals are returned.