Weather - Get Daily Historical Normals

Use to get climatology data such as past daily normal temperatures, precipitation and cooling/heating degree day information for a given location.

The Get Daily Historical Normals API is an HTTP GET request that returns climatology data such as past daily normal temperatures, precipitation and cooling/heating degree day information for the day at a given coordinate location. The historical normals are a 30-year average for temperatures and precipitation for a specific location. As is standard practice in climatology, the 30-year average covers years 1991-2020, this data will be used for one decade and then will reset in the year 2030. Generally, historical data may be available as far back as the last 5 to 40+ years, depending on the location.

GET https://atlas.microsoft.com/weather/historical/normals/daily/json?api-version=1.1&query={query}&startDate={startDate}&endDate={endDate}

GET https://atlas.microsoft.com/weather/historical/normals/daily/json?api-version=1.1&query={query}&startDate={startDate}&endDate={endDate}&unit={unit}

URI Parameters

Request Header

Responses

Security

AADToken

These are the Microsoft Entra OAuth 2.0 Flows. When paired with Azure role-based access control it can be used to control access to Azure Maps REST APIs. Azure role-based access controls are used to designate access to one or more Azure Maps resource account or sub-resources. Any user, group, or service principal can be granted access via a built-in role or a custom role composed of one or more permissions to Azure Maps REST APIs.

To implement scenarios, we recommend viewing authentication concepts. In summary, this security definition provides a solution for modeling application(s) via objects capable of access control on specific APIs and scopes.

Notes

• This security definition requires the use of the x-ms-client-id header to indicate which Azure Maps resource the application is requesting access to. This can be acquired from the Maps management API.

The Authorization URL is specific to the Azure public cloud instance. Sovereign clouds have unique Authorization URLs and Microsoft Entra ID configurations. * The Azure role-based access control is configured from the Azure management plane via Azure portal, PowerShell, CLI, Azure SDKs, or REST APIs. * Usage of the Azure Maps Web SDK allows for configuration based setup of an application for multiple use cases.

• For more information on Microsoft identity platform, see Microsoft identity platform overview.

Type: oauth2
Flow: implicit
Authorization URL: https://login.microsoftonline.com/common/oauth2/authorize

Scopes

subscription-key

This is a shared key that is provisioned when you Create an Azure Maps account in the Azure portal or using PowerShell, CLI, Azure SDKs, or REST API.

With this key, any application can access all REST API. In other words, this key can be used as a master key in the account that they are issued in.

For publicly exposed applications, our recommendation is to use the confidential client applications approach to access Azure Maps REST APIs so your key can be securely stored.

Type: apiKey
In: query

SAS Token

This is a shared access signature token is created from the List SAS operation on the Azure Maps resource through the Azure management plane via Azure portal, PowerShell, CLI, Azure SDKs, or REST APIs.

With this token, any application is authorized to access with Azure role-based access controls and fine-grain control to the expiration, rate, and region(s) of use for the particular token. In other words, the SAS Token can be used to allow applications to control access in a more secured way than the shared key.

For publicly exposed applications, our recommendation is to configure a specific list of allowed origins on the Map account resource to limit rendering abuse and regularly renew the SAS Token.

Type: apiKey
In: header

Examples

Successful Daily Historical Normals Request

GET https://atlas.microsoft.com/weather/historical/normals/daily/json?api-version=1.1&query=39.952583,-75.165222&startDate=2012-01-20&endDate=2012-01-22

{
  "results": [
    {
      "date": "2012-01-20T00:00:00-04:00",
      "temperature": {
        "maximum": {
          "value": 4.4,
          "unit": "C",
          "unitType": 17
        },
        "minimum": {
          "value": -3.7,
          "unit": "C",
          "unitType": 17
        },
        "average": {
          "value": 0.4,
          "unit": "C",
          "unitType": 17
        }
      },
      "degreeDaySummary": {
        "heating": {
          "value": 18,
          "unit": "C",
          "unitType": 17
        },
        "cooling": {
          "value": 0,
          "unit": "C",
          "unitType": 17
        }
      },
      "precipitation": {
        "value": 2.5,
        "unit": "mm",
        "unitType": 3
      }
    },
    {
      "date": "2012-01-21T00:00:00-04:00",
      "temperature": {
        "maximum": {
          "value": 4.5,
          "unit": "C",
          "unitType": 17
        },
        "minimum": {
          "value": -3.7,
          "unit": "C",
          "unitType": 17
        },
        "average": {
          "value": 0.4,
          "unit": "C",
          "unitType": 17
        }
      },
      "degreeDaySummary": {
        "heating": {
          "value": 18,
          "unit": "C",
          "unitType": 17
        },
        "cooling": {
          "value": 0,
          "unit": "C",
          "unitType": 17
        }
      },
      "precipitation": {
        "value": 2.5,
        "unit": "mm",
        "unitType": 3
      }
    },
    {
      "date": "2012-01-22T00:00:00-04:00",
      "temperature": {
        "maximum": {
          "value": 4.5,
          "unit": "C",
          "unitType": 17
        },
        "minimum": {
          "value": -3.7,
          "unit": "C",
          "unitType": 17
        },
        "average": {
          "value": 0.4,
          "unit": "C",
          "unitType": 17
        }
      },
      "degreeDaySummary": {
        "heating": {
          "value": 18,
          "unit": "C",
          "unitType": 17
        },
        "cooling": {
          "value": 0,
          "unit": "C",
          "unitType": 17
        }
      },
      "precipitation": {
        "value": 2.3,
        "unit": "mm",
        "unitType": 3
      }
    }
  ]
}

Definitions

DailyHistoricalNormals

DailyHistoricalNormalsResult

DegreeDaySummary

ErrorAdditionalInfo

The resource management error additional info.

ErrorDetail

The error detail.

ErrorResponse

Error response

JsonFormat

Desired format of the response. Only json format is supported.

UnitType

Numeric ID value associated with the type of unit being displayed. Can be used for unit translation. Please refer to Weather services in Azure Maps for details.

WeatherDataUnit

Specifies to return the data in either metric units or imperial units. Default value is metric.

WeatherUnit

Specific value of a given unit related to weather.

WeatherUnitMaxMinAvg

Returned temperature values.