New Orleans February 2025 Historical Weather Data Louisiana

Climate Data Online: Web Services Documentation Getting Started with Web Services v2 NCDC's Climate Data Online (CDO) offers web services that provide access to current data. This API is for developers looking to create their own scripts or programs that use the CDO database of weather and climate data. An access token is required to use the API, and each token will be limited to five requests per second and 10,000 requests per day.

Step 1: Request token In order to access the CDO web services a token must first be obtained from the token request page. Step 2: Make a request To make a request use the base url with one of the endpoint paths appended. Base URL Endpoints Header Pagination Step 3: Get a response All responses are JSON and will be a single item or a collection of items with metadata.

Single item { "id": "GSOY", "name": "Global Summary of the Year", "datacoverage": 1, "mindate": "1763-01-01", "maxdate": "2015-01-01" } Collection of items with metadata { "results": [ { "id": "GSOY", "name": "Global Summary of the Year", "datacoverage": 1, "mindate": "1763-01-01", "maxdate": "2015-01-01" }, ... ], "metadata": { "resultset": { "limit": 25, "count": 11, "offset": 1 } } } Datasets All of the CDO data are in datasets. The containing dataset must be known before attempting to access its data. Endpoints Additional Parameters Examples each REST query.

Copy the URL listed below to use as a reference. *Note: Assigned token is required to use these queries and must be in the header https://www.ncei.noaa.gov/cdo-web/api/v2/datasets https://www.ncei.noaa.gov/cdo-web/api/v2/datasets/GSOY https://www.ncei.noaa.gov/cdo-web/api/v2/datasets?datatypeid=TOBS https://www.ncei.noaa.gov/cdo-web/api/v2/datasets?stationid=COOP:310090&stationid=COOP:310184&stationid=COOP:310212 Data Categories Data Categories represent groupings of data types. Endpoints Additional Parameters Examples each REST query. Copy the URL listed below to use as a reference. *Note: Assigned token is required to use these queries and must be in the header https://www.ncei.noaa.gov/cdo-web/api/v2/datacategories?limit=41 https://www.ncei.noaa.gov/cdo-web/api/v2/datacategories/ANNAGR https://www.ncei.noaa.gov/cdo-web/api/v2/datacategories?locationid=CITY:US390029&locationid=FIPS:37 Data Types Describes the type of data, acts as a label.

If it's 64°f out right now, then the data type is Air Temperature and the data is 64. Endpoints Additional Parameters Examples each REST query. Copy the URL listed below to use as a reference. *Note: Assigned token is required to use these queries and must be in the header https://www.ncei.noaa.gov/cdo-web/api/v2/datatypes https://www.ncei.noaa.gov/cdo-web/api/v2/datatypes/ACMH https://www.ncei.noaa.gov/cdo-web/api/v2/datatypes?datacategoryid=TEMP&limit=56 https://www.ncei.noaa.gov/cdo-web/api/v2/datatypes?stationid=COOP:310090&stationid=COOP:310184&stationid=COOP:310212 Location Categories Location categories are groupings of locations under an applicable label. Endpoints Additional Parameters Examples each REST query. Copy the URL listed below to use as a reference.

*Note: Assigned token is required to use these queries and must be in the header https://www.ncei.noaa.gov/cdo-web/api/v2/locationcategories https://www.ncei.noaa.gov/cdo-web/api/v2/locationcategories/CLIM_REG https://www.ncei.noaa.gov/cdo-web/api/v2/locationcategories?startdate=1970-01-01 Locations Locations can be a specific latitude/longitude point such as a station, or a label representing a bounding area such as a city. Endpoints Additional Parameters Examples each REST query. Copy the URL listed below to use as a reference.

*Note: Assigned token is required to use these queries and must be in the header https://www.ncei.noaa.gov/cdo-web/api/v2/locations https://www.ncei.noaa.gov/cdo-web/api/v2/locations/FIPS:37 https://www.ncei.noaa.gov/cdo-web/api/v2/locations?datasetid=GHCND https://www.ncei.noaa.gov/cdo-web/api/v2/locations?locationcategoryid=ST&limit=52 https://www.ncei.noaa.gov/cdo-web/api/v2/locations?locationcategoryid=CITY&sortfield=name&sortorder=desc https://www.ncei.noaa.gov/cdo-web/api/v2/locations?locationcategoryid=ZIP&sortfield=name&sortorder=desc Stations Stations are where the data comes from (for most datasets) and can be considered the smallest granual of location data. If the desired station is known, all of its data can quickly be viewed Endpoints Additional Parameters Examples each REST query. Copy the URL listed below to use as a reference.

*Note: Assigned token is required to use these queries and must be in the header https://www.ncei.noaa.gov/cdo-web/api/v2/stations https://www.ncei.noaa.gov/cdo-web/api/v2/stations/COOP:010008 https://www.ncei.noaa.gov/cdo-web/api/v2/stations?locationid=FIPS:37 https://www.ncei.noaa.gov/cdo-web/api/v2/stations?datatypeid=EMNT&datatypeid=EMXT&datatypeid=HTMN Data The data endpoint is used for actually fetching the data. Endpoints Additional Parameters Examples each REST query. Copy the URL listed below to use as a reference. *Note: Assigned token is required to use these queries and must be in the header https://www.ncei.noaa.gov/cdo-web/api/v2/data?datasetid=GHCND&locationid=ZIP:28801&startdate=2010-05-01&enddate=2010-05-01 https://www.ncei.noaa.gov/cdo-web/api/v2/data?datasetid=PRECIP_15&stationid=COOP:010008&units=metric&startdate=2010-05-01&enddate=2010-05-31 https://www.ncei.noaa.gov/cdo-web/api/v2/data?datasetid=GSOM&stationid=GHCND:USC00010008&units=standard&startdate=2010-05-01&enddate=2010-05-31

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