Tomorrow.io Historical Weather API

openapi: 3.2.0
info:
  title: Tomorrow.io Alerts Historical API
  version: '4.0'
  description: 'Create, manage, and trigger weather-based alerts. Alerts evaluate Tomorrow.io

    weather data layers against custom thresholds for one or more linked locations

    and deliver notifications via webhook, email, and the Tomorrow.io app.

    '
  contact:
    name: Tomorrow.io Support
    url: https://support.tomorrow.io
servers:
- url: https://api.tomorrow.io/v4
  description: Tomorrow.io Production
security:
- apikeyAuth: []
tags:
- name: Historical
  description: Retrieve historical weather data and climate normals.
paths:
  /historical:
    post:
      tags:
      - Historical
      summary: Retrieve Historical Timeline
      operationId: postHistorical
      description: 'Retrieve a historical weather timeline for a point, polygon, or polyline

        across a given start and end time window. Supports the full field catalog

        and minute, hour, and day timesteps depending on plan tier.

        '
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/HistoricalRequest'
      parameters:
      - name: apikey
        in: query
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Historical timeline payload.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HistoricalResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/RateLimited'
  /historical/climate/normals:
    get:
      tags:
      - Historical
      summary: Get Climate Normals
      operationId: getClimateNormals
      description: 'Retrieve monthly climate normals (long-term averages and percentiles) for a

        given point. Useful for benchmarking current conditions against typical

        conditions for the location and season.

        '
      parameters:
      - name: location
        in: query
        required: true
        schema:
          type: string
      - name: fields
        in: query
        schema:
          type: string
      - name: apikey
        in: query
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Climate normals payload.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ClimateNormalsResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/RateLimited'
components:
  schemas:
    ErrorResponse:
      type: object
      properties:
        code:
          type: integer
        type:
          type: string
        message:
          type: string
    HistoricalRequest:
      type: object
      required:
      - location
      - fields
      - timesteps
      - startTime
      - endTime
      properties:
        location:
          oneOf:
          - type: string
          - type: object
            description: GeoJSON Point/Polygon/LineString
        fields:
          type: array
          items:
            type: string
        timesteps:
          type: array
          items:
            type: string
            enum:
            - 1m
            - 5m
            - 15m
            - 1h
            - 1d
        startTime:
          type: string
          format: date-time
        endTime:
          type: string
          format: date-time
        units:
          type: string
          enum:
          - metric
          - imperial
        timezone:
          type: string
    ClimateNormalsResponse:
      type: object
      properties:
        location:
          type: object
          properties:
            lat:
              type: number
            lon:
              type: number
        data:
          type: object
          properties:
            months:
              type: array
              items:
                type: object
                properties:
                  month:
                    type: integer
                  values:
                    type: object
                    additionalProperties:
                      type: number
    HistoricalResponse:
      type: object
      properties:
        data:
          type: object
          properties:
            timelines:
              type: array
              items:
                type: object
                properties:
                  timestep:
                    type: string
                  startTime:
                    type: string
                  endTime:
                    type: string
                  intervals:
                    type: array
                    items:
                      type: object
                      properties:
                        startTime:
                          type: string
                          format: date-time
                        values:
                          type: object
                          additionalProperties: true
  responses:
    Unauthorized:
      description: Missing or invalid API key.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
    RateLimited:
      description: Rate limit exceeded for the plan tier.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
  securitySchemes:
    apikeyAuth:
      type: apiKey
      in: query
      name: apikey